Field efficacy of different insecticides and bio-pesticides against okra shoot and fruit borer

Abstract

The experiment was conducted during 2018-19 at BTC CARS, Bilaspur (IGKV), Chhattisgarh to evaluate the insecticides and bio-pesticides against okra shoot and fruit borer under field condition. Two insecticides viz. Cartap hydrochloride 4 G @ 1kg a.i./ha, Fipronil 0.3 G @ 60g a.i./ha and three bio-pesticides viz. Beauveria bassiana @ 10g/lit., Bacillus thuringiensis @ 2g/lit., Metarhizium anisopliae @ 10g/lit. Fipronil 0.3 G soil application after the germination followed by spray with Metarhizium anisopliae was found to be most effective against okra shoot and fruit borer, as it was recorded overall less fruit infestation percentage (8.30%). The maximum fruit damage (17.07%) was recorded in Cartap hydrochloride 4 G soil application after the germination. Fipronil 0.3 G soil application after the germination followed by spray with Metarhizium anisopliae was found most effective against okra shoot and fruit borer, as it was recorded overall less fruit infestation and highest fruit yield (89.89q/ha) with benefit cost ratio 1.38:1.00.