Effect of Selected Biopesticides and Chemicals against Pod Borer [Helicoverpa armigera (L.)] on Chickpea (Cicer arietinum L.)

Abstract

The research work was undertaken at Central Research Farm (CRF) Sam Higginbottom University of Agriculture Technology and Sciences (SHUATS), Naini, Prayagraj during Rabi season in 2022- 23. Experiment consists of eight treatments including control viz. Chlorantraniliprole 18.5 SC @ 0.3ml/lit, Emamectin benzoate 1.9 EC @ 5ml/lit, Bacillus thurigiensis 1x109 CFU/ml @ 2.5g/lit, Spinosad 45 SC @ 0.3ml/lit, Indoxcarb 14.5 SC @ 0.5ml/lit, Metarhizium anisiopilae 1x109 CFU/ml @ 2.5gm/lit, Beauvaria bassiana 1.15 % WP @ 2.5gm/lit and untreated control in Randomized Block Design (RBD) with three replications. Data was taken on the mean larval population of chickpea pod borer Helicoverpa armigera on third, seventh and fourteen days after spray. Spraying revealed that the treatment Chlorantraniliprole 18.5 SC (2.36) found to be superior followed by Spinosad 45 SC (2.70), Emamectin benzoate 1.9EC (2.77), Indoxcarb 14.5 SC (2.98), Bacillus thurigiensis 1x109 CFU/ml (3.17), Beauvaria bassiana 1.15% WP (3.45), Metarhizium anisiopilae 1x109 CFU/ml (3.79) was found to be least effective among all the treatments as compared to control (5.64). Based on yield and cost benefit ratio the best and most economical treatment was Chlorantraniliprole 18.5 SC (26.83 q/ha) (1:3.49), followed by Spinosad 45SC (23.08 q/ha) (1:2.83), Emamectin benzoate 1.9EC(20.03q/ha) (1:2.66), Bacillus thurigiensis 1x109 CFU/ml (17.50 q/ha) (1:2.32), Indoxcarb 14.5 SC (17.66 q/ha) (1:2.29), Beauvaria bassiana 1.15 % WP (12.00 q/ha) (1:1.60), Metarhizium anisiopilae 1x109 CFU/ml (11.08 q/ha) (1:1.47) and untreated control (9.08) (1:1.27) ratio.