Studies on Degradation and Efficacy of Synthetic Pesticides on Okra Crop

5 Abstract: The present study was carried out at Institute of Environmental Studies and Department of Agriculture and Agribusiness Management, University of Karachi. The efficacy and degradation studies of different insecticides used against jassid infestation on okra crop were monitored. The insecticide -Cyhalothrin, Profenofos and Acephate form organophosphate group and Cartap from carbamate group were studied. For efficacy studies of insecticides, an untreated control plot was kept along with the treated plots. The insecticides were applied four times during the experimental period. Jassid population data were taken before and after 1, 2, 3,4,5,6 and 7 days of insecticices application. Degradation studies were carried out at 1, 7 and 30 days after insecticides application. Cartap was found most effective against jassids by providing 59.9% after first day and 98.0% after 5 , 6 and 7 day of its application. Acephate followed cartap bygiving 75.7 % th th th