Efficacy of Different Insecticides against brinjal fruit borer (Leucinodes orbonalis Guenee) and their impact on fruit yield

Abstract

Due to increasing levels of resistance towards different insecticides there is a need to test the efficacy of some insecticides against Leucinodes orbonalis. So in this present study, seven insecticides such as Emamectin benzoate 5% SG, Chlorantraniliprole 18.5% SC, Pyriproxyfen 5% EC + Fenpropathrin 15% EC, Azadirachtin 5% EC, Bacillus thuringiensis 5% WP, Spinosad 45% SC and Lambda cyhalothrin 5% EC belonging to different chemical groups were tested against L. orbonalis in the field during kharif, 2017 on brinjal variety BR 112. Studies on chemical control of L. orbonalis revealed that, treatments of Emamectin benzoate 5% SG and Chlorantraniliprole 18.5% SC were found most effective. The insecticides viz., Azadirachtin 5% EC and Bacillus thuringiensis 5% WP were found least effective against shoot and fruit borer. The remaining treatments viz., Spinosad 45% SC, Lambda cyhalothrin 5% EC, Pyriproxyfen 5% EC + Fenpropathrin 15% EC were found moderately effective.