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Lawn and Turfgrass Weed Control | Penn State Extension

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Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/dairy/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-24" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/dairy/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-27" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/dairy/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-30" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/poultry" class="main-menu__inner-link menu-link-level-1" data-menu="menu-54" >Poultry</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Poultry</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-54"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/poultry" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/production-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-57" >Production and Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/product-quality" class="main-menu__inner-link menu-link-level-2" data-menu="menu-60" >Product Quality</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-63" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-66" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-69" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-72" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-75" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-78" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/poultry/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-81" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle" class="main-menu__inner-link menu-link-level-1" data-menu="menu-102" >Beef Cattle</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Beef Cattle</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-102"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/production-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-105" >Production and Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/product-quality" class="main-menu__inner-link menu-link-level-2" data-menu="menu-108" >Product Quality</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-111" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-114" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-117" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-120" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-123" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-126" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/beef-cattle/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-129" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/equine" class="main-menu__inner-link menu-link-level-1" data-menu="menu-150" >Equine</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Equine</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-150"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/equine" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/pasture-and-environment-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-153" >Pasture and Environment Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-156" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-159" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-162" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-165" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-168" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-171" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/equine/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-174" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/swine" class="main-menu__inner-link menu-link-level-1" data-menu="menu-195" >Swine</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Swine</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-195"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/swine" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/production-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-198" >Production and Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/product-quality" class="main-menu__inner-link menu-link-level-2" data-menu="menu-201" >Product Quality</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-204" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-207" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-210" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-213" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-216" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-219" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/swine/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-222" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/goats" class="main-menu__inner-link menu-link-level-1" data-menu="menu-243" >Goats</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Goats</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-243"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/goats" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/production-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-246" >Production and Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/product-quality" class="main-menu__inner-link menu-link-level-2" data-menu="menu-249" >Product Quality</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-252" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-255" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-258" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-261" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-264" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-267" >Personal Safety </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/goats/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-270" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/sheep" class="main-menu__inner-link menu-link-level-1" data-menu="menu-291" >Sheep</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Sheep</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-291"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/sheep" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/production-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-294" >Production and Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/product-quality" class="main-menu__inner-link menu-link-level-2" data-menu="menu-297" >Product Quality</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-300" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-303" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-306" >Reproduction and Genetics</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-309" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-312" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-315" >Personal Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/sheep/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-318" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas" class="main-menu__inner-link menu-link-level-1" data-menu="menu-339" >Llamas and Alpacas</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Llamas and Alpacas</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-339"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-348" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-351" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas/manure-and-nutrient-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-357" >Manure and Nutrient Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas/facilities-and-technology" class="main-menu__inner-link menu-link-level-2" data-menu="menu-360" >Facilities and Technology</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/llamas-and-alpacas/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-366" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/animals-and-livestock/canine" class="main-menu__inner-link menu-link-level-1" data-menu="menu-2608" >Canine</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Canine</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-2608"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/animals-and-livestock/canine" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/canine/nutrition-and-feeding" class="main-menu__inner-link menu-link-level-2" data-menu="menu-2611" >Nutrition and Feeding</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/canine/behavior-and-welfare" class="main-menu__inner-link menu-link-level-2" data-menu="menu-2614" >Behavior and Welfare</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/canine/health-and-care" class="main-menu__inner-link menu-link-level-2" data-menu="menu-2617" >Health and Care</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/animals-and-livestock/canine/reproduction-and-genetics" class="main-menu__inner-link menu-link-level-2" data-menu="menu-2620" >Reproduction and Genetics</a> </div></li> </ul></div></div></li> </ul></div></div></li> <li class="main-menu__item &#x20;main-menu__item--parent level0"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops" class="main-menu__link menu-link-level-0" data-menu="menu-387" >Forage and Food Crops </a> </div><div data-role="content" class="menu-item"><div class="menu-title"><div class="back" data-role="back"><span>Forage and Food Crops </span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div> <div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level1" data-menu="menu-387"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level1 1"> <a href="https://extension.psu.edu/forage-and-food-crops" class="main-menu__inner-link menu-link-level-0" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops" class="main-menu__inner-link menu-link-level-1" data-menu="menu-390" >Agronomic Crops</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Agronomic Crops</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-390"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/production-and-harvesting" class="main-menu__inner-link menu-link-level-2" data-menu="menu-393" >Production and Harvesting</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/species-and-varieties" class="main-menu__inner-link menu-link-level-2" data-menu="menu-396" >Species and Varieties</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/soil-fertility-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-399" >Soil Fertility and Management </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/pests-and-diseases" class="main-menu__inner-link menu-link-level-2" data-menu="menu-402" >Pests and Diseases</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/weed-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-405" >Weed Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/organic-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-408" >Organic Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/sustainable-agriculture" class="main-menu__inner-link menu-link-level-2" data-menu="menu-411" >Sustainable Agriculture</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-414" >Personal Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/agronomic-crops/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-417" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops" class="main-menu__inner-link menu-link-level-1" data-menu="menu-438" >Cover Crops</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Cover Crops</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-438"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/production-and-harvesting" class="main-menu__inner-link menu-link-level-2" data-menu="menu-441" >Production and Harvesting</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/species-and-varieties" class="main-menu__inner-link menu-link-level-2" data-menu="menu-444" >Species and Varieties</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/soil-fertility-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-447" >Soil Fertility and Management </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/pests-and-diseases" class="main-menu__inner-link menu-link-level-2" data-menu="menu-450" >Pests and Diseases</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/weed-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-453" >Weed Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/organic-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-456" >Organic Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/sustainable-agriculture" class="main-menu__inner-link menu-link-level-2" data-menu="menu-459" >Sustainable Agriculture</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-462" >Personal Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/cover-crops/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-465" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops/forages" class="main-menu__inner-link menu-link-level-1" data-menu="menu-483" >Forages</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Forages</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-483"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forage-and-food-crops/forages" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/production-and-harvesting" class="main-menu__inner-link menu-link-level-2" data-menu="menu-486" >Production and Harvesting</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/species-and-varieties" class="main-menu__inner-link menu-link-level-2" data-menu="menu-489" >Species and Varieties</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/soil-fertility-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-492" >Soil Fertility and Management </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/forage-quality-and-testing" class="main-menu__inner-link menu-link-level-2" data-menu="menu-495" >Forage Quality and Testing</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/pests-and-diseases" class="main-menu__inner-link menu-link-level-2" data-menu="menu-498" >Pests and Diseases</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/weed-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-501" >Weed Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/organic-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-504" >Organic Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/sustainable-agriculture" class="main-menu__inner-link menu-link-level-2" data-menu="menu-507" >Sustainable Agriculture</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-510" >Personal Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/forages/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-513" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops/fruit" class="main-menu__inner-link menu-link-level-1" data-menu="menu-537" >Fruit</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Fruit</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-537"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forage-and-food-crops/fruit" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/production-and-harvesting" class="main-menu__inner-link menu-link-level-2" data-menu="menu-540" >Production and Harvesting</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/cultivars-and-rootstocks" class="main-menu__inner-link menu-link-level-2" data-menu="menu-543" >Cultivars and Rootstocks</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/soil-fertility-and-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-546" >Soil Fertility and Management </a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/pests-and-diseases" class="main-menu__inner-link menu-link-level-2" data-menu="menu-549" >Pests and Diseases</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/weed-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-552" >Weed Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/organic-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-555" >Organic Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/sustainable-agriculture" class="main-menu__inner-link menu-link-level-2" data-menu="menu-558" >Sustainable Agriculture</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/personal-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-561" >Personal Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/fruit/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-564" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forage-and-food-crops/mushrooms" class="main-menu__inner-link menu-link-level-1" data-menu="menu-636" >Mushrooms</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Mushrooms</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-636"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forage-and-food-crops/mushrooms" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/mushrooms/production-and-harvesting" class="main-menu__inner-link menu-link-level-2" data-menu="menu-639" >Production and Harvesting</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forage-and-food-crops/mushrooms/substrate-management" 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Stormwater Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/forests-and-wildlife/wildlife" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1185" >Wildlife</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Wildlife</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1185"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/forests-and-wildlife/wildlife" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forests-and-wildlife/wildlife/habitat-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1188" >Habitat Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forests-and-wildlife/wildlife/wildlife-ecology-and-conservation" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1194" >Wildlife Ecology and Conservation</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/forests-and-wildlife/wildlife/wildlife-nuisance-and-damage" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1197" >Wildlife Nuisance and Damage</a> </div></li> </ul></div></div></li> </ul></div></div></li> <li class="main-menu__item &#x20;main-menu__item--parent level0"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality" class="main-menu__link menu-link-level-0" data-menu="menu-1218" >Food Safety and Quality</a> </div><div data-role="content" class="menu-item"><div class="menu-title"><div class="back" data-role="back"><span>Food Safety and Quality</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div> <div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level1" data-menu="menu-1218"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level1 1"> <a href="https://extension.psu.edu/food-safety-and-quality" class="main-menu__inner-link menu-link-level-0" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/commercial-food-processing" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1221" >Commercial Food Processing</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Commercial Food Processing</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1221"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/commercial-food-processing" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/commercial-food-processing/good-manufacturing-practices" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1224" >Good Manufacturing Practices</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/commercial-food-processing/regulations" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1227" >Regulations</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/commercial-food-processing/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1230" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1254" >Dairy Food Processing</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Dairy Food Processing</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1254"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1257" >Business Management</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing/production-and-processing" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1260" >Production and Processing</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing/regulations" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1263" >Regulations</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/dairy-food-processing/safety-and-sanitation" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1266" >Safety and Sanitation</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/farm-food-safety" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1281" >Farm Food Safety</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Farm Food Safety</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1281"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/farm-food-safety" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/farm-food-safety/good-agricultural-practices" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1284" >Good Agricultural Practices</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/farm-food-safety/regulations" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1287" >Regulations</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/food-service-and-retail" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1311" >Food Service and Retail</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Food Service and Retail</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1311"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/food-service-and-retail" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/food-service-and-retail/food-service-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1314" >Food Service Safety</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/food-service-and-retail/regulations" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1317" >Regulations</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/food-service-and-retail/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1320" >Business Management</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/home-food-preservation-and-safety" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1344" >Home Food Preservation and Safety</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Home Food Preservation and Safety</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1344"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/home-food-preservation-and-safety" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/home-food-preservation-and-safety/food-preservation" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1347" >Food Preservation</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/home-food-preservation-and-safety/food-safety" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1350" >Food Safety</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/grape-and-wine-production" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1374" >Grape and Wine Production</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Grape and Wine Production</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1374"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/grape-and-wine-production" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/grape-and-wine-production/grape-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1377" >Grape Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/grape-and-wine-production/wine-production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1380" >Wine Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/grape-and-wine-production/business-management-and-marketing" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1383" >Business Management and Marketing</a> </div></li> </ul></div></div></li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/food-safety-and-quality/beer-hard-cider-and-distilled-spirits" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1404" >Beer, Hard Cider, and Distilled Spirits</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Beer, Hard Cider, and Distilled Spirits</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1404"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/food-safety-and-quality/beer-hard-cider-and-distilled-spirits" class="main-menu__inner-link menu-link-level-1" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/beer-hard-cider-and-distilled-spirits/production" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1407" >Production</a> </div></li> <li class="main-menu__inner-item main-menu__inner-item--level2 level2 no-children"><div data-role="title" class=""> <a href="https://extension.psu.edu/food-safety-and-quality/beer-hard-cider-and-distilled-spirits/business-management" class="main-menu__inner-link menu-link-level-2" data-menu="menu-1413" >Business Management</a> </div></li> </ul></div></div></li> </ul></div></div></li> <li class="main-menu__item &#x20;main-menu__item--parent level0"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/water" class="main-menu__link menu-link-level-0" data-menu="menu-1434" >Water</a> </div><div data-role="content" class="menu-item"><div class="menu-title"><div class="back" data-role="back"><span>Water</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div> <div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level1" data-menu="menu-1434"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level1 1"> <a href="https://extension.psu.edu/water" class="main-menu__inner-link menu-link-level-0" >View All</a> </li> <li class="main-menu__inner-item main-menu__inner-item--level1 level1 main-menu__inner-item--parent"><div data-role="title" class="parent-category-title"> <a href="https://extension.psu.edu/water/drinking-and-residential-water" class="main-menu__inner-link menu-link-level-1" data-menu="menu-1437" >Drinking and Residential Water</a> </div> <div data-role="content" class="menu-item"><div class="menu-title"><div data-role="back" class="back"><span>Drinking and Residential Water</span></div><div class="close-menu" data-action="toggle-nav"><span>Close</span></div></div><div class="menu-content"> <ul class="main-menu__inner-list main-menu__inner-list--level2" data-menu="menu-1437"> <li class="main-menu__inner-item main-menu__inner-item--all view-all main-menu__inner-item--level2 2"> <a href="https://extension.psu.edu/water/drinking-and-residential-water" class="main-menu__inner-link 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href="https://extension.psu.edu/" title="Go to Home Page">Home</a> </li> <li class="item category256"> <a href="https://extension.psu.edu/trees-lawns-and-landscaping" title="">Trees, Lawns, and Landscaping</a> </li> <li class="item category271"> <a href="https://extension.psu.edu/trees-lawns-and-landscaping/turfgrass-and-lawn-care" title="">Turfgrass and Lawn Care</a> </li> <li class="item category275"> <strong>Weed Identification and Management</strong> </li> </ul></nav> <div class="widget block block-static-block"><div data-content-type="html" data-appearance="default" data-element="main" data-decoded="true"><style> @media print { .noprint { display: none !important; } } </style></div></div> <div class="widget block block-static-block"><div data-content-type="html" data-appearance="default" data-element="main" data-decoded="true"><style> @media print { .noprint { display: none !important; } } </style></div></div><main id="maincontent" class="page-main"> <a id="contentarea" tabindex="-1"></a> <span class="parent-category-name">Turfgrass and Lawn Care</span> <div class="page-title-wrapper"><h1 class="page-title" id="page-title-heading" aria-labelledby="page-title-heading&#x20;toolbar-amount" ><span class="base" data-ui-id="page-title-wrapper" >Weed Identification and Management</span></h1> </div><div class="page messages"> <div data-placeholder="messages"></div> <div data-bind="scope: 'messages'"><!-- ko if: cookieMessagesObservable() && cookieMessagesObservable().length > 0 --><div aria-atomic="true" role="alert" class="messages" data-bind="foreach: { data: cookieMessagesObservable(), as: 'message' }"><div data-bind="attr: { class: 'message-' + message.type + ' ' + message.type + ' message', 'data-ui-id': 'message-' + message.type }"><div data-bind="html: $parent.prepareMessageForHtml(message.text)"></div></div></div><!-- /ko --><div aria-atomic="true" role="alert" class="messages" data-bind="foreach: { data: messages().messages, as: 'message' }, afterRender: purgeMessages"><div data-bind="attr: { class: 'message-' + message.type + ' ' + message.type + ' message', 'data-ui-id': 'message-' + message.type }"><div data-bind="html: $parent.prepareMessageForHtml(message.text)"></div></div></div></div></div><div class="category-view"> <div class="category-description"><p>Controlling turfgrass weeds is crucial to the health of your lawn. Penn State Extension provides a comprehensive list of resources on turf weed management. In this section, discover best practices on identifying various weed species, using pesticides safely and preventing herbicide drift, and eradicating weeds.</p> <h2>Identifying Lawn Weeds</h2> <p>Lawn weeds are undesirable plants known for disrupting turf uniformity and competing with desirable grass species for nutrients. Developing an effective <a href="https://extension.psu.edu/weed-management-in-turf">weed management program</a> requires the ability to identify weed species and understand their life cycles.</p> <p>The first step to lawn weed identification is distinguishing between grass weeds and broadleaf weeds. Broadleaf species &ndash; including <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-black-medic-medicago-lupulina-l">black medic</a> &ndash; bear colorful flowers of various shapes and sizes. Grass weeds, on the other hand, do not have flowers and leaf shapes are similar among species.</p> <p>Depending on the life cycle, weeds can be annuals or perennials. Annuals, such as crabgrass and <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-common-chickweed">common chickweed</a>, complete their cycle in one growing season. Perennials, like the common <a href="https://extension.psu.edu/dandelion-as-a-landscape-weed">dandelion</a>, can live for three or more years and produce new plants from seed.</p> <h2>Common Turf Weed Types</h2> <p><a href="https://extension.psu.edu/moss-in-the-lawn">Moss</a> is among the most persistent home lawn weeds. It typically grows where turfgrasses are thin and weak. A moss management program should begin with a soil test to determine nutrient content and needs. <a href="https://extension.psu.edu/moss-in-the-lawn">Chemical moss control</a> options include products containing metals, salts, or herbicides.</p> <p>In Pennsylvania, summer annual grasses are another pervasive weed problem. <a href="https://extension.psu.edu/control-of-summer-annual-grass-weeds-in-turfgrasses">Common species</a> include crabgrass, foxtails, barnyardgrass, and goosegrass. <a href="https://extension.psu.edu/postemergence-control-of-crabgrass-and-other-summer-annual-grasses-in-lawns">Controlling summer and annual grasses</a> involves creating a dense turf through practices such as fertilization and proper mowing heights.</p> <p>Other common lawn weeds include <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-wild-violet">wild violet</a>, field and corn speedwell, <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-yellow-nutsedge-cyperus-esculentus">yellow nutsedge</a>, and annual or <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-annual-or-daisy-fleabane">daisy fleabane</a>.</p> <h2>Lawn Care: Weed Management and Herbicides Application</h2> <p>For effective weed management, it is critical to implement cultural practices that increase the density and vigor of desirable turfgrasses. Cultural control measures include proper selection and establishment of turf, as well as adequate fertilization, liming, and watering.</p> <p>Herbicides may also be applied as part of the lawn weed control program. It is recommended, however, to manage the <a href="https://extension.psu.edu/introduction-to-creating-healthy-landscapes">health of lawns</a> with minimal pesticide use through methods such as <a href="https://extension.psu.edu/developing-an-integrated-turfgrass-pest-management-program">integrated pest management (IPM)</a>. IPM incorporates practices that help keep weeds and other pests below an established threshold level.</p> <h2>Find Resources on Lawn Weed Control</h2> <p>On this page, access recommendations on a wide array of weed lawn care topics. Information on <a href="https://extension.psu.edu/the-impact-of-mowing-on-weed-pressure">the impact of mowing</a> and <a href="https://extension.psu.edu/herbicide-drift-and-drift-related-damage">drift-related damage</a> is included, as well. Additional advice on turfgrass maintenance, aeration, and weed control can be obtained during Penn State Extension&rsquo;s free <a href="https://extension.psu.edu/turf-grass-workshop">turfgrass workshop</a>.</p> <p>Professionals can find further guidance in <a href="https://extension.psu.edu/weed-identification-walk">identifying weeds</a> in turf and landscape situations, as well as <a href="https://extension.psu.edu/industrial-right-of-way-weed-meeting">controlling weeds in rights of way</a> and industrial areas.</p></div> </div><div class="columns"><div class="sidebar sidebar-main"> <div class="block filter" id="layered-filter-block" data-mage-init='{"collapsible":{"openedState": "active", "collapsible": true, "active": false, "collateral": { "openedState": "filter-active", "element": "body" } }}'> <div class="block-title filter-title" data-count="0"><strong data-role="title">Narrow By</strong></div><div class="block-content filter-content"> <strong role="heading" aria-level="2" 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2x,https://extension.psu.edu/media/catalog/product/4/9/499d6dd0c8fe55f9db728eee81048d01.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/4/9/499d6dd0c8fe55f9db728eee81048d01.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Turf&#x20;and&#x20;Ornamentals&#x3A;&#x20;Right-of-Way&#x20;and&#x20;Weeds"/></span></span> <style>.product-image-container-408966748faf0b76d7 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-408966748faf0b76d7 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-408966748faf0b76d7 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="810"></span> Webinars</div> <div class="price-box price-final_price" data-role="priceBox" data-product-id="40896" data-price-box="product-id-40896"> <p class="minimal-price"> <span class="price-container price-final_price&#x20;tax&#x20;weee" > <span class="price-label"></span> <span id="from-40896" data-price-amount="20" data-price-type="" class="price-wrapper " ><span class="price">$20.00</span></span> </span> </p></div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/turf-ornamentals-right-of-way">Turf and Ornamentals: Right-of-Way and Weeds</a></h5><div class="product-attributes"> <div class='attribute when'><span class='label'>When </span><span class='value'>02/11/2025</span></div> <div class='attribute length'><span class='label'>Length </span><span class='value'>2 hours</span></div> <div class='attribute cvent_event_format'><span class='label'>Event Format </span><span class='value'>Virtual | Live</span></div> </div> <div class="product-short-description">Earn Cat. 05, 10, 18, 23, and PC credits while learning about the identification and management of Japanese stiltgrass and knotweed.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_4739" data-container="product-list"> <a href="https://extension.psu.edu/control-of-summer-annual-grass-weeds-in-turfgrasses" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-4739-6748faf0babc5"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/i/m/image_202.png?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/i/m/image_202.png?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/i/m/image_202.png?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Crabgrass&#x20;&#x28;Digitaria&#x20;spp.&#x29;"/></span></span> <style>.product-image-container-47396748faf0babc5 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-47396748faf0babc5 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-47396748faf0babc5 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/control-of-summer-annual-grass-weeds-in-turfgrasses">Control of Summer Annual Grass Weeds in Turfgrasses</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Peter Landschoot, Ph.D.</span></div> </div> <div class="product-short-description">Summer annual grasses continue to be pervasive weed problems in many turfgrass areas throughout Pennsylvania.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_9224" data-container="product-list"> <a href="https://extension.psu.edu/professional-pest-managers-school" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-9224-6748faf0bb7ef"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/9/6/9673aa613a27efbe2759cfdb6e271ced.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/9/6/9673aa613a27efbe2759cfdb6e271ced.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/9/6/9673aa613a27efbe2759cfdb6e271ced.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Professional&#x20;Pest&#x20;Managers&#x20;School"/></span></span> <style>.product-image-container-92246748faf0bb7ef { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-92246748faf0bb7ef span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-92246748faf0bb7ef span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="811"></span> Workshops</div> <div class="price-box price-final_price" data-role="priceBox" data-product-id="9224" data-price-box="product-id-9224"> <p class="minimal-price"> <span class="price-container price-final_price&#x20;tax&#x20;weee" > <span class="price-label"></span> <span id="from-9224" data-price-amount="125" data-price-type="" class="price-wrapper " ><span class="price">$125.00</span></span> </span> </p></div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/professional-pest-managers-school">Professional Pest Managers School</a></h5><div class="product-attributes"> <div class='attribute when'><span class='label'>When </span><span class='value'>12/09/2024</span></div> <div class='attribute length'><span class='label'>Length </span><span class='value'>7 hours, 15 minutes</span></div> <div class='attribute cvent_event_format'><span class='label'>Event Format </span><span class='value'>In-Person</span></div> </div> <div class="product-short-description">This one-day pesticide update session provides research-based information for applicators, as well as recertification credits in categories where it can be difficult to find credits.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_35280" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-nimblewill-muhlenbergia-schreberi-j-f-gmel" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-35280-6748faf0be4f2"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/b/d/bd8f9f3f9a7ec67adb0f2eadccca1612.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/b/d/bd8f9f3f9a7ec67adb0f2eadccca1612.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/b/d/bd8f9f3f9a7ec67adb0f2eadccca1612.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Nimblewill&#x20;&#x28;Muhlenbergia&#x20;schreberi&#x20;J.F.&#x20;Gmel.&#x29;&#x20;Photo&#x3A;&#x20;Pete&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-352806748faf0be4f2 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-352806748faf0be4f2 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-352806748faf0be4f2 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-nimblewill-muhlenbergia-schreberi-j-f-gmel">Lawn and Turfgrass Weeds: Nimblewill (Muhlenbergia schreberi J.F. Gmel.)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Nimblewill, also called wire grass and drop seed, is a common warm-season perennial grass weed of lawns, parks, and other low-maintenance turf areas in Pennsylvania.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_35281" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-common-purslane-portulaca-oleracea-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-35281-6748faf0bf17f"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/d/b/db1ffd47e77e93870ab94c6cc4082158.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/d/b/db1ffd47e77e93870ab94c6cc4082158.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/d/b/db1ffd47e77e93870ab94c6cc4082158.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Common&#x20;purslane.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-352816748faf0bf17f { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-352816748faf0bf17f span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-352816748faf0bf17f span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-common-purslane-portulaca-oleracea-l">Lawn and Turfgrass Weeds: Common Purslane (Portulaca oleracea L.)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Common purslane, sometimes referred to as pursley or wild portulaca, is a weed of low-maintenance lawns, parks, institutional grounds, and athletic fields.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_32057" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-japanese-stiltgrass-microstegium-vimineum-trin-a-camus" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-32057-6748faf0bfe70"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/b/5/b529f6553bfa7f48b233419490917412.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/b/5/b529f6553bfa7f48b233419490917412.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/b/5/b529f6553bfa7f48b233419490917412.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Japanese&#x20;stiltgrass&#x20;&#x28;Microstegium&#x20;vimineum&#x29;&#x20;&#x28;Trin.&#x29;&#x20;A.&#x20;Camus.&#x20;Photo&#x3A;&#x20;Leslie&#x20;J.&#x20;Mehrhoff,&#x20;University&#x20;of&#x20;Connecticut,&#x20;Bugwood.org"/></span></span> <style>.product-image-container-320576748faf0bfe70 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-320576748faf0bfe70 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-320576748faf0bfe70 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-japanese-stiltgrass-microstegium-vimineum-trin-a-camus">Lawn and Turfgrass Weeds: Japanese Stiltgrass [Microstegium vimineum (Trin.) A. Camus]</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Japanese stiltgrass, also known as Nepalese browntop and Mary&#039;s grass, is a highly invasive weed along roadsides bordering wooded areas, in infrequently mowed naturalized rough areas on golf courses, as well as in shaded or partially shaded parks and lawns.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_51834" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-canada-thistle-cirsium-arvense-l-scop" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-51834-6748faf0c0ad4"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/9/9/99b9d0cb4d071cdc7b10139b6fdeb558.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/9/9/99b9d0cb4d071cdc7b10139b6fdeb558.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/9/9/99b9d0cb4d071cdc7b10139b6fdeb558.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Canada&#x20;thistle&#x20;plants.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-518346748faf0c0ad4 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-518346748faf0c0ad4 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-518346748faf0c0ad4 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-canada-thistle-cirsium-arvense-l-scop">Lawn and Turfgrass Weeds: Canada Thistle [Cirsium arvense (L.) Scop.]</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Canada thistle is an aggressive broadleaf weed species of low-maintenance lawns, infrequently mowed grass rough on golf courses, as well as meadows on institutional grounds and other large properties.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_30152" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-spotted-spurge-chamaesyce-maculata-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-30152-6748faf0c1727"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/c/0/c0153e664f87e31e74d8fd20bd8d38de.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/c/0/c0153e664f87e31e74d8fd20bd8d38de.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/c/0/c0153e664f87e31e74d8fd20bd8d38de.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-301526748faf0c1727 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-301526748faf0c1727 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-301526748faf0c1727 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-spotted-spurge-chamaesyce-maculata-l">Lawn and Turfgrass Weeds: Spotted Spurge - Chamaesyce Maculata L.</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Spotted spurge鈥攕ometimes referred to as prostrate spurge or spotted sandmat鈥攊s a weed of lawns, parks, institutional grounds, and athletic fields.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_30151" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-birdsfoot-trefoil-lotus-corniculatus-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-30151-6748faf0c2320"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/9/9/99d58d97ba4428d9099a0e3f5f4235c9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/9/9/99d58d97ba4428d9099a0e3f5f4235c9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/9/9/99d58d97ba4428d9099a0e3f5f4235c9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Patches&#x20;of&#x20;birdsfoot&#x20;trefoil&#x20;growing&#x20;in&#x20;under-fertilized&#x20;turf&#x20;in&#x20;Pennsylvania.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-301516748faf0c2320 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-301516748faf0c2320 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-301516748faf0c2320 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-birdsfoot-trefoil-lotus-corniculatus-l">Lawn and Turfgrass Weeds: Birdsfoot Trefoil - Lotus Corniculatus L.</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Birdsfoot trefoil is a useful conservation plant but also an invasive weed in low maintenance turf areas maintained at high mowing heights.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_50470" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-false-green-kyllinga-kyllinga-gracillima-miq" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-50470-6748faf0c2f4e"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/0/9/09871f3cc459e68434a80932bf379c26.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/0/9/09871f3cc459e68434a80932bf379c26.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/0/9/09871f3cc459e68434a80932bf379c26.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="False&#x20;green&#x20;kyllinga.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-504706748faf0c2f4e { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-504706748faf0c2f4e span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-504706748faf0c2f4e span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-false-green-kyllinga-kyllinga-gracillima-miq">Lawn and Turfgrass Weeds: False Green Kyllinga (Kyllinga gracillima Miq.)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">False green kyllinga, sometimes called pasture spikesedge and other common names, is a warm-season, non-native weed species found in golf course turf, lawns, and athletic fields.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_2570" data-container="product-list"> <a href="https://extension.psu.edu/ants-in-home-lawns" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-2570-6748faf0c3c4f"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/i/m/image_1051.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/i/m/image_1051.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/i/m/image_1051.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Ants&#x20;in&#x20;Home&#x20;Lawns"/></span></span> <style>.product-image-container-25706748faf0c3c4f { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-25706748faf0c3c4f span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-25706748faf0c3c4f span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/ants-in-home-lawns">Ants in Home Lawns</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Gregory Hoover</span></div> </div> <div class="product-short-description">Several species of ants commonly inhabit home lawns and ornamental plantings of trees and shrubs.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_29850" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-yellow-woodsorrel-oxalis-stricta-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-29850-6748faf0c48ac"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/4/4/44c9f2209d3d281dd7be1c389f1fedf9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/4/4/44c9f2209d3d281dd7be1c389f1fedf9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/4/4/44c9f2209d3d281dd7be1c389f1fedf9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Yellow&#x20;woodsorrel&#x20;plant&#x20;growing&#x20;near&#x20;a&#x20;sidewalk&#x20;in&#x20;a&#x20;Pennsylvania&#x20;lawn.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-298506748faf0c48ac { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-298506748faf0c48ac span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-298506748faf0c48ac span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-yellow-woodsorrel-oxalis-stricta-l">Lawn and Turfgrass Weeds: Yellow Woodsorrel, Oxalis stricta L.</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Yellow woodsorrel, also referred to as oxalis, sourgrass, and other names, is a weed of home lawns, parks, golf courses, and athletic fields.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_29849" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-red-clover-trifolium-pratense-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-29849-6748faf0c56cc"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/6/7/67a3656b91a5c80f859d7ae35f7ea5a1.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/6/7/67a3656b91a5c80f859d7ae35f7ea5a1.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/6/7/67a3656b91a5c80f859d7ae35f7ea5a1.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Red&#x20;clover&#x20;growing&#x20;in&#x20;lawn&#x20;in&#x20;central&#x20;Pennsylvania.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-298496748faf0c56cc { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-298496748faf0c56cc span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-298496748faf0c56cc span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-red-clover-trifolium-pratense-l">Lawn and Turfgrass Weeds: Red Clover, Trifolium pratense L.</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Red clover is an occasional weed problem in home lawns and other turf areas maintained at high heights of cut. It is more prevalent in under-fertilized lawns and grows well in full sun.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_29477" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-common-chickweed" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-29477-6748faf0c644f"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/a/7/a735071a219b4a37b1eb357303052e00.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/a/7/a735071a219b4a37b1eb357303052e00.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/a/7/a735071a219b4a37b1eb357303052e00.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Common&#x20;chickweed&#x20;growing&#x20;in&#x20;a&#x20;shaded&#x20;lawn&#x20;in&#x20;central&#x20;Pennsylvania.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-294776748faf0c644f { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-294776748faf0c644f span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-294776748faf0c644f span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-common-chickweed">Lawn and Turfgrass Weeds: Common Chickweed</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Common chickweed is a weed of home lawns, parks, golf courses, and athletic fields.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_29476" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-dead-nettle" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-29476-6748faf0c711c"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/9/2/92d38fef91ed878dd01493b17e3942db.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/9/2/92d38fef91ed878dd01493b17e3942db.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/9/2/92d38fef91ed878dd01493b17e3942db.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;A&#x20;patch&#x20;of&#x20;dead&#x20;nettle&#x20;growing&#x20;in&#x20;a&#x20;Pennsylvania&#x20;lawn&#x20;during&#x20;April.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-294766748faf0c711c { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-294766748faf0c711c span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-294766748faf0c711c span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-dead-nettle">Lawn and Turfgrass Weeds: Dead Nettle</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle, Maria Landschoot</span></div> </div> <div class="product-short-description">Dead nettle, or purple dead nettle, is a weed commonly found in low maintenance turf areas that are mowed infrequently, including forest edges and roadside areas.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_48538" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-ground-ivy-glechoma-hederacea-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-48538-6748faf0c7cd0"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/a/3/a3f7af1213fb1ef606314d8d65dbb7b8.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/a/3/a3f7af1213fb1ef606314d8d65dbb7b8.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/a/3/a3f7af1213fb1ef606314d8d65dbb7b8.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Ground&#x20;Ivy&#x20;&#x28;Glechoma&#x20;hederacea&#x20;L.&#x29;&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-485386748faf0c7cd0 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-485386748faf0c7cd0 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-485386748faf0c7cd0 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-ground-ivy-glechoma-hederacea-l">Lawn and Turfgrass Weeds: Ground Ivy (Glechoma hederacea L.)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Peter Landschoot, Ph.D.</span></div> </div> <div class="product-short-description">Ground ivy, also called creeping Charlie and several other common names, is a common and aggressive weed of home lawns, parks, grounds, and other turf areas in Pennsylvania.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_28768" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-english-daisy" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-28768-6748faf0c8871"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/d/e/deecb6ef7f38c60b50c97296d890504a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/d/e/deecb6ef7f38c60b50c97296d890504a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/d/e/deecb6ef7f38c60b50c97296d890504a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;English&#x20;daisy&#x20;growing&#x20;in&#x20;a&#x20;park&#x20;in&#x20;Clifton&#x20;Springs,&#x20;NY&#x20;during&#x20;early&#x20;May.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-287686748faf0c8871 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-287686748faf0c8871 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-287686748faf0c8871 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-english-daisy">Lawn and Turfgrass Weeds: English Daisy</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">English daisy, also called common daisy, is a weed of home lawns, parks, and other turf areas. This species is often found growing in moist, fertile soils and in full sun or partial shade.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_4375" data-container="product-list"> <a href="https://extension.psu.edu/the-impact-of-mowing-on-weed-pressure" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-4375-6748faf0c9435"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/6/3/635fbfe071364f4ab7a7b4f9f4a15e75.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/6/3/635fbfe071364f4ab7a7b4f9f4a15e75.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/6/3/635fbfe071364f4ab7a7b4f9f4a15e75.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Spurge&#x20;infestation&#x20;in&#x20;relation&#x20;to&#x20;mowing&#x20;height.&#x20;Far&#x20;left&#x20;is&#x20;mowed&#x20;at&#x20;1&#x20;inch,&#x20;middle&#x20;at&#x20;1.75&#x20;inches,&#x20;right&#x20;at&#x20;2.5&#x20;inches.&#x20;Photo&#x3A;&#x20;Dr.&#x20;Pete&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-43756748faf0c9435 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-43756748faf0c9435 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-43756748faf0c9435 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/the-impact-of-mowing-on-weed-pressure">The Impact of Mowing on Weed Pressure</a></h5><div class="product-attributes"> </div> <div class="product-short-description">Perhaps the single most important (and easiest) management tool to control weeds in turf is performing proper mowing practices.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_28290" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-white-clover" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-28290-6748faf0c9ff5"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/0/1/01aca0aff5539403afae4c110287ba5a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/0/1/01aca0aff5539403afae4c110287ba5a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/0/1/01aca0aff5539403afae4c110287ba5a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;White&#x20;clover&#x20;growing&#x20;in&#x20;under-fertilized&#x20;turf&#x20;in&#x20;Pennsylvania.&#x20;Photo&#x3A;&#x20;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-282906748faf0c9ff5 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-282906748faf0c9ff5 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-282906748faf0c9ff5 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-white-clover">Lawn and Turfgrass Weeds: White Clover</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">White clover (Trifolium repens L.) is perhaps the most common weed of home lawns and other turf areas.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_28292" data-container="product-list"> <a href="https://extension.psu.edu/perennial-weeds-mouseear-chickweed" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-28292-6748faf0cabd1"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/i/m/image_3777_1_2_1_262_1_23_1_28_2_11_2_2_2_38_1_94_7_2_24_46_6_414_49_21_45_2_25_15_1_9_1_18_9_6_5_1_21_3_29_8_2_1_13_5_1_5367.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/i/m/image_3777_1_2_1_262_1_23_1_28_2_11_2_2_2_38_1_94_7_2_24_46_6_414_49_21_45_2_25_15_1_9_1_18_9_6_5_1_21_3_29_8_2_1_13_5_1_5367.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/i/m/image_3777_1_2_1_262_1_23_1_28_2_11_2_2_2_38_1_94_7_2_24_46_6_414_49_21_45_2_25_15_1_9_1_18_9_6_5_1_21_3_29_8_2_1_13_5_1_5367.jpg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Common&#x20;mouse-ear&#x20;chickweed.&#x20;Photo&#x3A;&#x20;Mary&#x20;Ellen&#x20;&#x28;Mel&#x29;&#x20;Harte,&#x20;Bugwood.org"/></span></span> <style>.product-image-container-282926748faf0cabd1 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-282926748faf0cabd1 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-282926748faf0cabd1 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/perennial-weeds-mouseear-chickweed">Perennial Weeds: Mouseear Chickweed</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey</span></div> </div> <div class="product-short-description">Mouseear chickweed (Cerastium vulgatum) is a low-growing perennial plant. It can be considered a weed in turfgrass and in ornamental plant beds, where it can grow into a mounding form.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_6504" data-container="product-list"> <a href="https://extension.psu.edu/postemergence-control-of-crabgrass-and-other-summer-annual-grasses-in-lawns" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-6504-6748faf0cb75b"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/d/b/db3c268a9fab1f7b0a60bdc3b529a470.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/d/b/db3c268a9fab1f7b0a60bdc3b529a470.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/d/b/db3c268a9fab1f7b0a60bdc3b529a470.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Crabgrass&#x20;infested&#x20;lawn.&#x20;Photo&#x3A;&#x20;P.&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-65046748faf0cb75b { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-65046748faf0cb75b span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-65046748faf0cb75b span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/postemergence-control-of-crabgrass-and-other-summer-annual-grasses-in-lawns">Postemergence Control of Crabgrass and Other Summer Annual Grasses in Lawns</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Peter Landschoot, Ph.D.</span></div> </div> <div class="product-short-description">During rainy summers, annual grasses can be an unsightly weed problem in many Pennsylvania lawns.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_26482" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-black-medic-medicago-lupulina-l" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-26482-6748faf0cc321"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/d/0/d09610dcb3eca4f146d80c1c8ee4ee8e.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/d/0/d09610dcb3eca4f146d80c1c8ee4ee8e.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/d/0/d09610dcb3eca4f146d80c1c8ee4ee8e.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Black&#x20;medic&#x20;growing&#x20;in&#x20;an&#x20;under-fertilized&#x20;lawn&#x20;in&#x20;central&#x20;Pennsylvania.&#x20;Photo&#x3A;&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-264826748faf0cc321 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-264826748faf0cc321 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-264826748faf0cc321 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-black-medic-medicago-lupulina-l">Lawn and Turfgrass Weeds: Black Medic (Medicago lupulina L.)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Black medic is a weed of home lawns, parks, low-maintenance grounds, and along roadsides.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_25572" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-yellow-nutsedge-cyperus-esculentus" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-25572-6748faf0ccff4"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/b/1/b17afaffbcb7a6b0c4c26868a22e74e9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/b/1/b17afaffbcb7a6b0c4c26868a22e74e9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/b/1/b17afaffbcb7a6b0c4c26868a22e74e9.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Lawn&#x20;and&#x20;Turfgrass&#x20;Weeds&#x3A;&#x20;Yellow&#x20;Nutsedge&#x20;&#x28;Cyperus&#x20;esculentus&#x29;"/></span></span> <style>.product-image-container-255726748faf0ccff4 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-255726748faf0ccff4 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-255726748faf0ccff4 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-yellow-nutsedge-cyperus-esculentus">Lawn and Turfgrass Weeds: Yellow Nutsedge (Cyperus esculentus)</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle, Nancy Bosold</span></div> </div> <div class="product-short-description">Yellow nutsedge鈥攕ometimes referred to as nutgrass鈥攊s a persistent weed problem in lawns, athletic fields, and golf course turf.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_24807" data-container="product-list"> <a href="https://extension.psu.edu/lawn-and-turfgrass-weeds-thyme-leaf-speedwell" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-24807-6748faf0cdc86"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/7/9/79f3abbac8f83113c2336b95595fd79a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/7/9/79f3abbac8f83113c2336b95595fd79a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/7/9/79f3abbac8f83113c2336b95595fd79a.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Figure&#x20;1.&#x20;Thyme-leaf&#x20;speedwell&#x20;growing&#x20;in&#x20;shaded&#x20;area&#x20;of&#x20;a&#x20;lawn.&#x20;Photo&#x20;by&#x20;Peter&#x20;Landschoot,&#x20;Penn&#x20;State"/></span></span> <style>.product-image-container-248076748faf0cdc86 { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-248076748faf0cdc86 span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-248076748faf0cdc86 span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product name product-item-name"><a class="product-item-link" href="https://extension.psu.edu/lawn-and-turfgrass-weeds-thyme-leaf-speedwell">Lawn and Turfgrass Weeds: Thyme-leaf Speedwell</a></h5><div class="product-attributes"> <div class='attribute authors'><span class='label'>By </span><span class='value'>Tim Abbey, Peter Landschoot, Ph.D., Tanner Delvalle</span></div> </div> <div class="product-short-description">Thyme-leaf speedwell (also spelled thymeleaf speedwell or thyme-leaved speedwell) is a weed of home lawns, parks, and institutional grounds.</div> </div></div></li> <li class="item product product-item"> <div class="product-item-info" id="product-item-info_4376" data-container="product-list"> <a href="https://extension.psu.edu/amines-or-esters-which-should-you-use" class="product photo product-item-photo" tabindex="-1"> <span class="product-image-container&#x20;product-image-container-4376-6748faf0ce81c"><span class="product-image-wrapper"><img class="product-image-photo" srcset="https://extension.psu.edu/media/catalog/product/d/1/d11cb5abd57ac7ae80e59ed82945abff.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=2 2x,https://extension.psu.edu/media/catalog/product/d/1/d11cb5abd57ac7ae80e59ed82945abff.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448&amp;dpr=3 3x" src="https://extension.psu.edu/media/catalog/product/d/1/d11cb5abd57ac7ae80e59ed82945abff.jpeg?quality=80&amp;bg-color=255,255,255&amp;fit=bounds&amp;height=448&amp;width=676&amp;canvas=676:448" loading="lazy" width="676" height="448" alt="Photo&#x3A;&#x20;The&#x20;Dow&#x20;Gardens&#x20;Archive,&#x20;Dow&#x20;Gardens,&#x20;Bugwood.org,&#x20;showy&#x20;forsythia,&#x20;Forsythia&#x20;x&#x20;intermedia"/></span></span> <style>.product-image-container-43766748faf0ce81c { width: 676px; height: auto; aspect-ratio: 676 / 448; } .product-image-container-43766748faf0ce81c span.product-image-wrapper { height: 100%; width: 100%; } @supports not (aspect-ratio: auto) { .product-image-container-43766748faf0ce81c span.product-image-wrapper { padding-bottom: 66.272189349112%; } }</style> </a> <div class="product details product-item-details"> <div class="product-type-wrapper"> <div class="product-type"><span class="product-type-icon" data-icon="801"></span> Articles</div> </div> <h5 class="product 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