Comparative efficacy of selected botanicals and chemical insecticide against pea pod borer Etiella zinkenella (Tr.) in pea at trance region of Yamuna, Prayagraj

Abstract

The present investigation was conducted at the research plot at Central Research Field, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj during the Rabi season of 2024. The experiment was conducted in Randomized Block Design (RBD) by using eight treatments each replicated thrice viz., Cypermethrin 25% EC @ 20ml/lit, Spinosad 45% SC @ 0.3 ml/lit, Deltamethrin 2.8% EC @ 1ml/lit, Neem oil 2% @ 2.5 gm/lit, Beauveria bassiana @2.5 gm/lit, Emamectin benzoate 5%SG @ 2ml/lit, Indoxacarb 18.5 SC @ 1.5 ml/lit and untreated control against Etiella zinkenella in pea crop. The mean of both firstand second spray revelled that Indoxacarb 18.5 @0.3 ml/lit recorded the lowest infestation of pod borer population i.e (1.79) which was significantly superior over control followed by (2.02), Spinosad 45% SC (2.23), Emamectin benzoate 5% SG (2.41), Cypermethrin 25% ECSC (2.61), Neem oil 0.03% EC (1.86) Beauveria bassiana (2.99) was least effective among all the treatments. The highest yield and cost benefit ratio was recorded in Indaxocarb 14.5% Sc (67.5) and(1:3.30), followed by Spinosad 45% SC (56.32) and (1:2.97), Emamectin benzoate 5%SG (49.3) and (1:2.45), Cypermethrin (48.4) and (1:2.57), Deltamethrin 2.8% EC (47.29) and (1:2.49), Neem oil 2% (44.5) and (1:2.28), Beauveria Bassiana (43.26) and (1:2.23) as compared to control (32.4) and (1:1.78).