Management of pod borer, Helicoverpa armigera (Hubner) through newer insecticide in chickpea

Abstract

The study was carried out to evaluate the effectiveness of six newer insecticides along with untreated control viz., chlorantarniliprole 18.5 SC, emamectin benzoate1.9 EC,indoxacarb 15.8 EC,spinosad 45 SC, flubendiamide20 WG and quinalphos 25 EC against Helicoverpa armigera (Hubner) in chickpea during Rabi 2021-22 and 2022-23 at the Research Farm, Rajasthan Agricultural Research Institute (S.K.N. Agricultural University), Durgapura, Jaipur (Rajasthan). The pooled mean of two consecutive years (2021-22 and 2022-23) indicated that all the treatments significantly superior over control. Among the treatments, chlorantraniliprole 18.5 SC @ 0.005% was most effective with 72.49 percent reduction in H. armigera population, it was followed by and at par with treatment spinosad 45 SC @ 0.02% which gave 69.65 percent reduction. The treatment of quinalphos 25 EC @ 0.05% was least effective among the treatments and it gave 52.46 percent reduction. The minimum percent pod damage and maximum yield was recorded in the plants treated with chlorantarniliprole (9.15% and 19.55 q/ha, respectively) which were found significantly superior to other treatments. The maximum percent pod damage and minimum yield was evident in the treatment quinalphos (28.22% and 14.40 q/ha, respectively). Based on benefit: cost ratio of different treatments,indoxacarb 15.8 EC (1:7.55) followed by chlorantraniliprole 18.5 SC (1:7.37) were found to be most economic insecticide, because it gave the maximum benefit as compared to remaining treatments.