Some parasitoids emerging from Aphis gossypii GLOVER on eggplants and chrysanthemums.

Identification of Aphis gossypii Glover (Hemiptera: Aphididae) Biotypes from Different Host Plants in North China.

BACKGROUND The cotton-melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is a polyphagous species with a worldwide distribution and a variety of biotypes. North China is a traditional agricultural area with abundant winter and summer hosts of A. gossypii. While the life cycles of A. gossypii on different plants have been well studied, those of the biotypes of North China are still uncle...

Aphis gossypii

BIOLOGY/ECOLOGY Dispersal mechanisms Flight range of winged adults is very limited. Long-range dispersal of eggs, immature stages and adults is manmediated with the transport of infested plant material. Reproduction The taxonomic status of this alien aphid is problematic, and hence the interpretation of biological information is difficult. Moreover, different biotypes exhibiting host preference...

Thiamethoxam Resistance in Aphis gossypii Glover Relies on Multiple UDP-Glucuronosyltransferases

Uridine diphosphate (UDP)-glycosyltransferases (UGTs) are major phase II enzymes that conjugate a variety of small lipophilic molecules with UDP sugars and alter them into more water-soluble metabolites. Therefore, glucosidation plays a major role in the inactivation and excretion of a great variety of both endogenous and exogenous compounds. In this study, two inhibitors of UGT enzymes, sulfin...

برآورد پارامترهای جدول زندگی باروری شته جالیز (Aphis gossypii Glover)

پارامترهای جدول زندگی باروری شته جالیز بر روی سه گیاه خیار، کدوتنبل و کدو مسمایی در شرایط آزمایشگاه با دمای 1±25 درجه سانتیگراد، رطوبت نسبی 5±75 درصد و دوره نوری 8 : 16 (تاریکی: روشنایی) بررسی گردید. به منظور محاسبه خطای استاندارد پارامترهای رشد جمعیت از روش جک‎نایف استفاده شد. نرخ خالص تولید مثل روی خیار، کدوتنبل و کدو مسمایی به ترتیب برابر با 806/7±789/76، 409/6±704/32 و 041/4±995/43 محاسبه ...

بررسی بیولوژی وتغییرات جمعیت Aphis gossypii Glover درمزارع پنبه گرگان