Activity of four entomopathogenic nematode species against different developmental stages of Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera, Chrysomelidae)
نویسندگان
چکیده
منابع مشابه
toxicity of spinosad against developmental stages of colorado potato beetle, leptinotarsa decemlineata (say) (coleoptera: chrysomelidae)
colorado potato beetle, leptinotarsa decemlineata is one of the major insect pests of potato. toxicity of spinosad, as a bio-rational insecticide, was investigated against various developmental stages of this pest. bioassays were conducted by using the eggs, neonates, first, second, third and fourth instar larvae and adults. the potato leaves were impregnated with different concentrations of sp...
متن کاملVoltinism and the Induction of Aestival Diapause in the Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)
Field studies over 3 yr demonstrated that overwintering populations of the Colorado potato beetle in upstate New York and on Long Island are composed of adults from both the first and second summer generations. The two populations from the climatically different regions differ in their responses to environmental factors that influence voltinism. The critical photoperiod for aestival diapause in...
متن کاملSuppression of Colorado Potato Beetle, Leptinotarsa decemlineata (Say), (Coleoptera: Chrysomelidae) Populations with Antifeedant Fungicides
Laboratory, small-field plot, and commercial-scale experiments were completed, using Connecticut, Rhode Island, and New York Colorado potato beetle, (CPB) Leptinotarsa decemlineata (Say), populations to determine if "antifeedant fungicides" might reduce the suitability of potato for CPB while simultaneously protecting potato from early and late blight. In the laboratory. fungicides formulated f...
متن کاملNutritional indices of the Colorado potato beetle, Leptinotarsa decemlineata (Col.: Chrysomelidae) on six potato cultivars
سوسک کلرادوی سیب زمینی، Leptinotarsa decemlineata (Say)، یکی از آفات مهم سیب زمینی در ایران و جهان است. شاخص‌های تغذیه‌ای لاروهای سن آخر این آفت روی برگ ارقام مختلف سیب زمینی (خاوران، ساوالان، لوتا، سانتا، سانته و آئولا) تحت شرایط آزمایشگاهی (دمای 1 ± 25 درجه سلسیوس، رطوبت نسبی 5 ± 65 در‌صد و دوره نوری 16 ساعت روشنایی و 8 ساعت تاریکی) بررسی شد. لاروهای پرورش‌یافته روی رقم سانته کم‌ترین کارا...
متن کاملSide effects of immune response of Colorado potato beetle, Leptinotarsa decemlineata against the entomopathogenic nematode, Steinernema carpocapsae infection
Entomopathogenic nematodes (EPNs) are lethal pathogens of agricultural insect pests. Little is known about their sublethal effects on the insect hosts. The lethal effects of Steinernema carpocapsae on fourth instar larvae of Colorado potato beetle (CPB), Leptinotarsa decemlineata were detected using soil infection and direct injection of the nematode into the hemocel. LC20 and LC80 values of 7....
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ژورنال
عنوان ژورنال: Helminthologia
سال: 2009
ISSN: 1336-9083,0440-6605
DOI: 10.2478/s11687-009-0003-1