Search results for: Lipaphis erysimi

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erysimi</title> <meta name="description" content="Search results for: Lipaphis erysimi"> <meta name="keywords" content="Lipaphis erysimi"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Lipaphis erysimi"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 2</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Lipaphis erysimi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Impact of Mixed Prey Population on Predation Potential and Food Preference of a Predaceous Ladybird, Coccinella septempunctata </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Pervez">Ahmad Pervez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We investigated predation potential and food preference of different life stages of a predaceous ladybird Coccinella septempunctata L. (Coleptera: Coccinellidae) using a nutritive food (mustard aphid, Lipaphis erysimi) and a toxic food (cabbage aphid, Brevicoryne brassicae). We gave monotypic prey, L. erysimi, then B. brassicae to all life stages and found that second, third and fourth instars and adult female C. septempunctata daily consumed greater number of former prey. However, the first instar and the adult male equally consumed both the prey. In choice condition, each larva, adult male and female consumed mixed aphid diet separately in three proportions (i.e. low: high, equal: equal and high: low densities of L. erysimi: B. brassicae). We hypothesized that life stages of C. septempunctata will prefer L. erysimi regardless of its proportions. Laboratory experiment supported this hypothesis only at the adult level showing high values of 尾 and C preference indices. However, it rejects this hypothesis at the larval level, as larvae preferred B. brassicae in certain combinations and showed no preference in a few combinations. We infer that mixing of nutritive diet in a toxic diet may possibly overcome the probable nutritive deficiency and/or reduces the toxicity of toxic diet, especially to the larvae of C. septempunctata. Consumption of high proportion of B. brassicae mixed with fewer L. erysimi suggests that mixed diet could be better for the development of immature stages of C. septempunctata. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Coccinella%20septempunctata" title="Coccinella septempunctata">Coccinella septempunctata</a>, <a href="https://publications.waset.org/abstracts/search?q=predatory%20potential" title=" predatory potential"> predatory potential</a>, <a href="https://publications.waset.org/abstracts/search?q=prey%20preference" title=" prey preference"> prey preference</a>, <a href="https://publications.waset.org/abstracts/search?q=Lipaphis%20erysimi" title=" Lipaphis erysimi"> Lipaphis erysimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Brevicoryne%20brassicae" title=" Brevicoryne brassicae"> Brevicoryne brassicae</a> </p> <a href="https://publications.waset.org/abstracts/80698/impact-of-mixed-prey-population-on-predation-potential-and-food-preference-of-a-predaceous-ladybird-coccinella-septempunctata" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80698.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Sub-Lethal Effects of Thiamethoxam and Pirimicarb on Life-Table Parameters of Diaeretiella rapae (Hymenoptera: Braconidae), Parasitoid of Lipaphis erysimi (Hemiptera: Aphididae)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nastaran%20Rezaei">Nastaran Rezaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Saeed%20Mossadegh"> Mohammad Saeed Mossadegh</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhan%20Kocheyli"> Farhan Kocheyli</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalil%20Talebi%20Jahromi"> Khalil Talebi Jahromi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aurang%20Kavousi"> Aurang Kavousi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Integrated Pest Management (IPM) aims to combine biological and chemical strategies and measures, hence highlighting the study of acute toxicity and sub-lethal effects of pesticides comprehensively. The present research focused on the side effects of thiamethoxam and pirimicarb sub-lethal concentrations on demographic parameters of <em>Diaeretiella</em> <em>rapae</em> (McIntosh Laboratory) (Hymenoptera: Braconidae). Adult parasitoids were exposed to LC<sub>25</sub> of insecticides as well as distilled water as the control. The results showed that thiamethoxam adversely affected population parameters (<em>r, λ, R<sub>0</sub>, T</em>), adults' longevity, females' oviposition period and mean fecundity, and a similar trend was obtained for pirimicarb with the exception of generation time (<em>T</em>), the latter did not significantly change compared to the control. The intrinsic rate of increase (<em>r</em>) in the control and those treated with pirimicarb and thiamethoxam were 0.2801, 0.2064, 0.1525 days<sup>-1</sup>, respectively, and the sex ratio was biased toward females in all treatments. Furthermore, none of the insecticides influenced total pre-oviposition period (TPOP) and offspring emergence rate. In general, these results indicated that both insecticides potentially distort the demographic parameters of the parasitoid even at sub-lethal concentrations, and then they should not be considered for IPM program in the presence of <em>D. rapae</em>. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diaeretiella%20rapae" title="Diaeretiella rapae">Diaeretiella rapae</a>, <a href="https://publications.waset.org/abstracts/search?q=Lipaphis%20erysimi" title=" Lipaphis erysimi"> Lipaphis erysimi</a>, <a href="https://publications.waset.org/abstracts/search?q=life-table%20study" title=" life-table study"> life-table study</a>, <a href="https://publications.waset.org/abstracts/search?q=pirimicarb" title=" pirimicarb"> pirimicarb</a>, <a href="https://publications.waset.org/abstracts/search?q=thiamethoxam" title=" thiamethoxam"> thiamethoxam</a> </p> <a href="https://publications.waset.org/abstracts/89685/sub-lethal-effects-of-thiamethoxam-and-pirimicarb-on-life-table-parameters-of-diaeretiella-rapae-hymenoptera-braconidae-parasitoid-of-lipaphis-erysimi-hemiptera-aphididae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89685.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">192</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" 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Search results for: Lipaphis erysimi