Vol. 12, Issue 3 (2023)

Author(s):
Bhupender Singh, Ram Karan Gaur and Anil Jakhar

Abstract:
Newer molecules may be a better alternative than conventional synthetic insecticides for pest management but should be safe to the natural enemies. In this context, a study was conducted at Hisar (Haryana) during kharif 2019 and 2020 to assess the effect of newer molecules on coccinellids while using against okra shoot and fruit borers. Experiment was conducted in randomized block design in plot size of 5 ´ 4 m with three replications for each treatment. Insecticides viz. chlorantaniliprole 18.5 SC, emamectin benzoate 5 SG, pyridalyl 10 EC, lambda-cyhalothrin 5 EC, cypermethrin 25 EC and quinalphos 25 EC were applied thrice at the rate of 25, 6.75, 15, 50, 37 and 200 g a.i. per ha, respectively. It was observed that chlorantaniliprole and emamectin benzoate causing no significant adverse effect on population were safe to the coccinellids. Pyridalyl 10 EC was next relatively safer molecule while cypermethrin, lambda-cyhalothrin and quinalphos caused significant reduction in coccinellids population. Hence, chlorantraniliprole, emamectin benzoate and pyridalyl can alternatively be used for pest management in okra.