Comparative potency of chemical insecticides and biopesticides in management of shoot and fruit borer [Leucinodes orbonalis (Guenee)] in brinjal [Solanum melongena (L.)]

Abstract

The present experiment was carried out to compare the efficacy against Leucinodes orbonalis and its effect on yield of Brinjal. The best and most economical treatment was Chlorantraniliprole @ 18.5 EC (1:10.2) which was on par with Emamectin benzoate @ 5 SG (1:9.8) followed by Carbosulfan 25 EC (1:7.3), Beauveria bassiana (1:6.4) Spinosad @45% SC (1:5.5), followed by Bacillus thuringiensis (1:5.2) and Neem oil (1:4.3) as compared to control (1:3.1). The data on the percent infestation of the shoot and fruit borer on brinjal 3rd, 7th, and 14th day after the first spray reveal that all the chemical treatments were significantly superior over control. Chlorantraniliprole @ 18.5 EC (5.94) was par with Emamectin benzoate @5 SG (8.49) followed by Carbosulfan 25 EC (10.71), Beauveria bassiana (12.91) Spinosad @45% SC (13.13), followed by Bacillus thuringiensis (14.85) and, Neem oil (16.87). The yield among the treatment were significantly higher in Chlorantraniliprole @ 18.5 EC (207.50q/ha) followed by Emamectin benzoate @ 5 SG (183.83q/ha)