نتایج جستجو برای: habrobracon hebetor say
تعداد نتایج: 44460 فیلتر نتایج به سال:
فراوانی و پارازیتیسم پارازیتوییدهای لاروی و شفیرگی شبپرۀ پشتالماسی،Plutella xylostella L. (Lepidoptera: Plutellidae) در مزارع کشت چلیپاییان چهار منطقۀ زیستی شامل استانهای گلستان، البرز، اصفهان و خوزستان طی سالهای 1389 و 1390 تعیین شد. در مجموع شش گونه پارازیتویید لاروی شامل (Kurdjumov, 1912) Cotesia vestalis (=plutellae) (در هر چهار منطقۀ زیستی)،Apanteles sp. (کرج و اصفهان)، Bracon hebetor...
Biweekly field visits starting from January to the end of April 2011 were conducted to tomato fields (open and plastic houses) heavily infested with the tomato borer Tuta absoluta, in order to survey natural enemies associated with this pest. Three hemipterans were found: Orius albidipennis, Orius sp. (Anthocoridae) and Nesidiocoris tenuis (Miridae). In addition, the parasitic wasp Bracon (Habr...
MONG species of insects that have been used for genetic studies, there Aoccasionally appear adults which are composed of two or more different genomes. In Drosophila melanogaster, where most of these mosaics were of the gynandromorph type, it has been shown that elimination of an X chromosome during early cleavage was involved (MORGAN and BRIDGES 1919; PATTERSON 1931). In a few instances, ferti...
N THE parasitic wasp Habrobracon juglandis (Ashm.), when a cross of I unrelated stocks is made, males (haploid) come from unfertilized eggs and females (diploid) from fertilized eggs. When the parental stocks are closely related, not only males from unfertilized eggs but also males (diploid) from fertilized eggs appear. That such biparental males should be produced was puzzling until WHITING br...
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