نتایج جستجو برای: aphis fabae scopoli
تعداد نتایج: 2510 فیلتر نتایج به سال:
در بسیاری از موجودات زنده، آنزیمهای سمزدا نقش مهمی در سمزدایی ترکیبات ناگوارد ایفا میکنند و به عنوان نشانگرهای زیستی قرارگیری در معرض ترکیبات ناگوارد قلمداد میشوند. در واقع، درجات مختلف حساسیت به ترکیبات شیمیایی ممکن است به دلیل تفاوتهای بیوشیمیایی در سمزدایی حشره کشها باشد. در بررسی پیشرو، اثر تیامتوکسام و پیریمیکارب در غلظتهای زیرکشنده بر میزان فعالیت آنزیمهای سمزدای شته سیاه باق...
Aphis polii sp. n. living on Teucrium polium L. (Lamiaceae) is described, based on apterous and alate viviparous females and oviparous females. It has been collected from seventeen localities in mainland France, Corsica, Italy, Ukraine, Lebanon and Iran. The new species is similar to two other Aphis species that feed specifically on plants of the genus Teucrium, but has a relatively longer ulti...
Few empirical studies have directly explored the association between Buchnera aphidicola (Enterobacteriales: Enterobacteriaceae), the primary endosymbiont of aphids, and the life history strategies of aphid parasitoids. A series of paired-choice experiments were conducted to explore the preference of the parasitoid Lysiphlebus ambiguus Halliday (Hymenoptera: Aphididae) for symbiotic and aposymb...
Abstract Background Aphidophagous syrphid, Ischiodon scutellaris (Fabricius) (Diptera: Syrphidae) is an effective predator of aphids that infest many agricultural and horticultural crops. Cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), the natural host for culturing syrphid predator, I. . The present study was conducted to evaluate feeding development on seven species aphid hosts vi...
This study was conducted in stone fruit orchards five provinces of the East Mediterranean Region Turkey between years 2009-2011. The aim to determine potential aphid vectors quarantine pathogen PPV (plum pox virus, family Potyviridae) that causes serious yield losses. During surveys, 542 orchard/nurseries were sampled and 6 species (Hemiptera: Aphididae) [Brachycaudus persicae (Passerini,1860),...
Transmission experiments of different isolates of Cucumber mosaic virus (CMV), Watermelon mosaic virus (WMV) and Zucchini yellow mosaic virus (ZYMV) were conducted using established colonies of Aphis gossypii Glover, Myzus persicae (Sulzer), A. fabae Scopoli and A. craccivora Koch as vectors. The transmission procedure used provided an estimate of the virus transmission efficiency for each aphi...
Aphid flight activities in seed potato fields have been studied by the yellow water traps. It is a good method for monitoring aphids as vectors of viruses, but this study also showed it is a suitable method for insect-diversity research. During the four-year studies, over 11.500 specimens were collected and a total of 107 different taxa of aphids were identified. The most abundant species were ...
in several parts of the world, important yield losses are caused to faba bean due to attack by the black bean aphid aphis fabae scopoli. although resistance could be a good alternative to chemical control, its genetic basis is still largely unknown; and its phenotypic expression is still poorly described, making crucial the permanent evaluation of genetic resources available in different countr...
all species in the genus lysiphlebus förster (hymenoptera: braconidae, aphidiinae) are solitary endoparasitoids of aphids, which are one of the most difficult and unknown taxonomic groups to identify. a pair of species-specific primers as a molecular marker was designed to identify the most abundant and important aphid parasitoid wasp, l. fabarum marshall, collected from guilan province (iran)....
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