Quantitative ovary protein studies on Dysdercus koenigii F. after application of different insecticides

Abstract

Effect of different concentrations of insecticides viz, multineem, neemjeevan, imidacloprid, monocrotophos, quinolphos and oxydemeton-o-methyl on ovary of Dysdercus koenigii fouth instar female nymphs at different age interval i.e 1-day, 4-day and 7-day old after adult emergence was carried out . The nymphs when transformed into adults then females were dissected and ovary was taken out for the estimation of protein. The quantity of protein decreased in 1-day old adult female derived from IV instar treated with different insecticides and found to be insignificant when compared with control. In case of 4-day old female the amount of protein was also inhibited by the application of insecticides and more inhibition was found in higher concentration although oxydemeton-o-methyl found to be more effective on the 4-day old insects. However in 7-day old insects the inhibition was almost same as in 4-day old insects and significant in all most all concentrations of quinolphos and oxydemeton-o-methyl.