Bio-efficacy of newer and bio-rational insecticides against shoot and fruit borer (Earias vittella Fabricius) of okra

Abstract

An experiment was conducted on bio-efficacy of newer and bio-rational insecticides against shoot and fruit borer in okra. Efficacy of insecticides tested against Earias vittella in okra indicated that the minimum per cent infestation of shoot and fruit borer was found in the treatment of emamectin benzoate 3.8%+thiamethoxam 20% WDG (16.75%) followed by emamectin benzoate 5% SG (18.93%), spinosad 45% SC (21.20%), profenofos 50% EC. Thiamethoxam 25%WG (27.60%) and Beauvaria bassiana both were found at par with each other. Treatment NSKE 5% (31.25%) was found least effective but it was significantly superior to control.