نتایج جستجو برای: piutela xylostella
تعداد نتایج: 1170 فیلتر نتایج به سال:
this paper reports the occurrence of the hymenoterous parasitoid of the diamondback moth larvae in iran. one species of ichneumonidae, diadegma anurum (thomson), was collected from larvae of plutella xylostella (l.) (lep.: plutellidae). this parasitoid, which belongs to the subfamily campopleginae and tribe limneriini, is a new record for iran.
طی مطالعاتی که در سال 1390 روی بید کلم، Plutella xylostella (L.)، در استان اصفهان انجام شد، یک گونه زنبور پارازیتوئید به نام Dolichogenidea appellator (Telenga) از پرورش لاروهای بید کلم جمعآوریشده از مزارع کلمپیچ، واقع در مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان بهدست آمد که برای فون ایران جدید است. این زنبور، علاوهبر بید کلم، بالپولکداران دیگری از خانواده Gelechiidae، نظیر Scrobi...
Chemically inducible production of Bacillus thuringiensis (Bt) toxins in transgenic plants may provide considerable benefits in preventing or delaying the evolution of insect resistance to Bt crops by creating within-plant temporal refuges. We examined the effect of inducible cry1Ab expression on survival of different genotypes (RR, RS, and SS) of diamondback moth, Plutella xylostella (L.), in ...
Bacillus thuringiensis is an important source of insect resistance traits in commercial crops. In an effort to prolong B. thuringiensis trait durability, insect resistance management programs often include combinations of insecticidal proteins that are not cross resistant or have demonstrable differences in their site of action as a means to mitigate the development of resistant insect populati...
Bacillus thuringiensis toxins act by binding to specific target sites in the insect midgut epithelial membrane. The best-known mechanism of resistance to B. thuringiensis toxins is reduced binding to target sites. Because alteration of a binding site shared by several toxins may cause resistance to all of them, knowledge of which toxins share binding sites is useful for predicting cross-resista...
Plants are sessile organisms and, consequently, are exposed to a plethora of stresses in their local habitat. As a result, different populations of a species are subject to different selection pressures leading to adaptation to local conditions and intraspecific divergence. The annual brassicaceous plant Arabidopsis thaliana is an attractive model for ecologists and evolutionary biologists due ...
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