Vol. 11, Issue 4 (2022)

Author(s):
Kalva Rani and Ashwani Kumar

Abstract:
The present study was carried out at Central Research Field, Prayagraj, Uttar Pradesh during August to November of 2021, the study entitled, “Field efficacy of different chemicals against shoot and fruit borer [Earias vittella (Fabricius)] of okra”. Seven treatments were evaluated against Earias vitella i.e., T1 Flubendamid 20% WG. T2 Chlorantraniliprole 18.5% SC, T3 Indoxacarb 14.5 SC, T4 Spinosad 45% SC, T5 Emamectin benzoate 5% SG, T6 Fipronil 5% SC, T7 Neem Oil and untreated Control (T0) Were tested to compare the efficacy against Earias vitella and their influences on yield of okra. The best and most economical treatment was Spinosad 45% SC (1:9.3) which was par with Chlorantraniliprole 18.5% SC (1:8.2) and Indoxacarb 14.5 SC (1:8.1), Emamectin benzoate 5% SG (1:7.9), Flubendiamide 20%WG (1:7.6), Fipronil 5% SG (1:5.5), the least effective was Neem oil (1:5.3) as compared to control T0 (1:4.2). Among all the treatments T4 Spinosad 45% SC was found effective in controlling the shoot and fruit borer population followed by T2 Chlorantraniliprole 18.5% SC, T3 Indoxacarb 14.5 SC, T5 Emamectin benzoate 5% SG T1 Flubendamide 20% WG, T6 Fipronil 5% SC and T7 Neem oil is found to be least effective among all the treatments as compared to T0 control. The highest yield was noticed in Spinosad 45% SC (195.5q/ha) and the least with Neem oil (92.4q/ha).