International Journal of Entomology Research

Authors
Hemat Z Moustafa, MSM Salem

Abstract
Under laboratory conditions, toxicological evaluation of three insecticides, profenofos, alpha-cypermethrin & flufenoxuron against newly hatched larvae of Pectinophora gossypiella (Saund.). The obtained results show a prolongation in larval and pupal developments resulted from treated larvae by the three compounds. Also, they prolonged the total immature period; flufenoxuron was the highest with 31.43 days compared with untreated which was 22.33 days. Also, effect of the three insecticides on fecundity and longevity of adults was done. Study of biochemical parameters; the results accentuated that the treated larvae with profenofos, alpha-cypermethrin & flufenoxuron reduced the total soluble protein, lipid and carbohydrate contents which play a key role in the metamorphosis and developmental process in body of P. gossypiella larvae stage. The levels of GOT was highly increased in alpha-cypermethrin treatment. At the same time, the lowest reduction in GPT activity of treated P. gossypiella occurred in profenofos, while the highly reduction recorded in flufenoxuron compared with untreated.