Dr. Ashraf Oukasha Abd El-latif

Assistant Professor - Associate Professor (Insect Physiology), Department of Plant Protection

Faculty of agriculture

Address: Faculty of Agriculture, Sohag Universiy, Sohag, Egypt



Publications Which contain the keyword: pyrethroid resistance

Overexpression of cytochrome P450 CYP6B7 mediated pyrethroid resistance in Indian strains of the cotton bollworm, Helicoverpa armigera (Hübner)
The role of cytochrome P450 monooxygenase in pyrethroid resistance was studied in different strains of the cotton bollworm, Helicoverpa armigera, from India. Filed collected strains of Nagpur and Delhi were compared to the laboratory reared population. The results showed a high resistance to deltamethrin, α-cypermethrin, and β-cyfluthrin. The results also showed that this resistance could be reduced by using piperonyl ... Read more

Insect resistance to pyrethroid with special reference to the cotton bollworm.
Pyrethroid insecticides were first introduced into India in 1980, primarily for the control of Spodoptera litura, which by that time had become resistant to organophosphate, carbamate and organochlorine insecticides (Ramakrishnan et. al., 1984). Within few years, pyrethroids became popular with cotton farmers and were indiscriminately used and replaced all other insecticides (Reddy, 1987). Resistance of the cotton bollworm, Helicoverpa armigera ... Read more

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