Efficacy of Certain Insecticides and Neem Products against Shoot and Fruit Borer [Earias vittella (Fabricius)] of okra [Abelmoschus esculentus (L.) Moench]

Abstract

A field trial was conducted at the research plot at Central Research Farm (CRF), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, during the Rabi Season of 2022-2023 where eight treatments were replicated thrice in Randomized Block Design (RBD) Eight treatments i.e., Lambda cyhalothrin 2.5% EC @ 0.3ml/lit, Emamectin benzoate 5% SG @0.5ml/lit ,Spinosad 45%SC@1.3 ml/lit, Chlorantraniliprole 18.5%SC @0.5 ml/lit, Imidacloprid 17.80%SL @0.5ml/lit,  Azadirachtin 1% EC @ 10ml/lit, NSKE 5% @ 50 ml/lit and untreated Control. The data on the percent infestation of the shoot and fruit borer on okra third, seven and fourth day after spray reveal that all the insecticides and neem products were significantly superior over control. Among all the different treatments lowest shoot and fruit infestation of okra was recorded in Chlorantraniliprole (10.21% ,9.98%) followed by Emamectin benzoate 5%SG (11.45%, 12.29%), Spinosad 45%SC (13.86%, 14.11%), Imidacloprid 17.80% SL (16.94,15.87%), Lambda cyhalothrin 2.5%EC (17.83, 16.03%), Azadirachtin 1% EC (19.25%, 17.04%) and NSKE 5% (20.35%, 18.75%), control (24.84%, 25.98%). The yields among the treatment were significant. The yield and benefit cost ratio was recorded  in Chlorantraniliprole 18.5SC (195.5 q/ha) (1:9.3) followed by Emamectin benzoate 5% SG  (149.2q/ha), (1:8.2), Spinosad 45 % SC (140.2q/ha), (1:8.11), Imidacloprid 17.80SL (136.3q/ha), (1:7.9), Lambda cychalothrin 2.5 EC (133.2q/ha), (1:7.6), Azadirachtin 1% (96.3q/ha) (1:5.5) and NSKE 5% (92.4q/ha) (1:5.2)  as compared to, control (72.2q/ha), (1:4.2).