بررسی تغییرات جمعیت زنبورTrioxys pallidus پارازیتوئید شته سبز گردو در استان قزوین

تغییرات فصلی جمعیت شته سبز گندم و معرفی دشمنان طبیعی آن در منطقه سیستان

Seven species of aphids belonging to the family Aphididae in six genera were collected and identified in wheat and barely fields in Sistan region (Miankangi, Shahraki-Narooi, Shibab and Markazi) during1999-2000. Among them, Schizaphis graminum (Wheat green aphid) was the dominant species with an abundance of about 85.4% in the area. The seasonal population changes of Schizaphis graminum were st...

تغییرات فصلی جمعیت شته سبز گندم و معرفی دشمنان طبیعی آن در منطقه سیستان

Seven species of aphids belonging to the family Aphididae in six genera were collected and identified in wheat and barely fields in Sistan region (Miankangi, Shahraki-Narooi, Shibab and Markazi) during1999-2000. Among them, Schizaphis graminum (Wheat green aphid) was the dominant species with an abundance of about 85.4% in the area. The seasonal population changes of Schizaphis graminum were st...

معرفی چند زنبور انگل (پارازیتوئید) شته ها در استان خوزستان

تغییرات فصلی جمعیت شته سبز هلو Myzus persicae (Sulz.) (Hom: Aphididae) و زنبور پارازیتوئید آن Aphidius matricariae (Hal.) بر روی سیب زمینی در مناطق بهبهان و یاسوج

مقایسه باروری ، طول دوره رشد و طول عمر شته گردو [Chromaphis juglandicola (Kalt.)] و زنبور پارازیتویید آن [Trioxys pallidus(Hal.)]

Fertility, developmental time and adult longevity of walnut aphid, Chromaphis juglandicola (Kalt.) and its parasitoid wasp, Trioxys pallidus (Hal.) were studied under controlled conditions with a constant temperature of 26±2oC, relative humidity of 60±5%, and 16:8 (L:D) photoperiod. Populations of walnut aphid and parasitoid wasp were reared on walnut seedling in a growth chamber. The mean deve...

شته های غلات و تغییرات جمعیت آنها در مزارع گندم و جو استان تهران