Comparative Efficacy of Bio-Rational and Chemical Insecticides for Management of Shoot and Fruit Borer [Earias vittella (Abelmoschus esculentus)] on Okra

Abstract

A field experiment on the efficacy of certain bio-rationals and chemical insecticides for management of shoot and fruit borer [Earias vittella (Fabricius)] on okra conducted at Sam Higgin bottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India during Kharif season. Total seven treatments like Neemoil @ 3%, NSKE (5%), Beauveria bassiana, Bacillus thuringiensis, Chlorpyriphos 20 EC, Cypermetrin 10 EC, Dimethoate 30 EC, were evaluated against shoot and fruit borer, Earias vittella.. The data recorded in present studies were subjected to statical analysis by RBD. Results revealed that among the treatments minimum per cent shoot infestation, per cent fruit infestation and B:C ratio were observed in Chlorpyriphos with (5.77%, 4.82% and 1:2.67) respectively, which is followed by Cypermethrin (7.79%, 7.51% and 1:2.63), Dimethoate (9.36%, 7.99% and 1:2.49), Neem oil (10.40%, 10.42%,1:2.45), NSKE (11.63%, 10.53%, and 1:2.38), Beauveria bassiana (12.68%, 10.78% and 1:2.21), Bacillus thuringiensis (13.65%, 13.54% and 1:2.09). untreated control (water spray) (16.27%, 20.90% and 1:1.64) respectively. Insecticides Dosesw were as per CIB recommendation.