BIO-EFFICACY OF NEWER INSECTICIDES AGAINST GRAM POD BORER (HELICOVERPA ARMIGERA HUBNER) ON CHICKPEA

Abstract

The investigation sought to examine the Bio efficacy of several insecticides on the larval population of the gram pod borer (Helicoverpa armigera) in chickpea plants, as well as the corresponding cost-benefit ratio. The present study was carried out at KVK Operational area Village Nahnegaon Solapur during Rabi (2024-25) in a Randomized Block Design (RBD) with seven treatments replicated three times. The outcomes revealed that the application of Cyclaniliprole 100 DC @ 40 g.a.i/ha and Chlorantraniliprole 18.5% SC @ 25g a.i./ha were established to be most effective treatments and application of Chlorantraniliprole 9.30 % + Lambda-cyhalothrin 04.60 % ZC @ 30 g.a.i./ha was least effective in respect of larval population/mrl of H.armigera. Novaluron 5.25 % + Indoxacarb 4.50 % SC @ 43.31 + 37.13 g.a.i./ha recorded highest percent pod damage and Cyclaniliprole 100 DC @ 40 g.a.i/ha and Chlorantraniliprole 18.5% SC @ 25g a.i./ha recorded least percent pod damage. The maximum yield was recorded in Cyclaniliprole 100 DC @ 40 g.a.i/ha (22.56 q/ha) followed by Chlorantraniliprole 18.5% SC @ 25g a.i./ha (21.13 q/ha) and lowest yield was recorded from Chlorantraniliprole 9.30 % + Lambda-cyhalothrin 04.60 % ZC (15.60 q/ha) treated plot. The economics of different new molecule insecticides indicated that higher benefit cost ratio (BCR) was observed from Chlorantraniliprole 18.5% SC @ 25g a.i./ha (8.14:1) followed by Cyclaniliprole 100 DC @ 40 g.a.i/ha (7.14:1) and the lower BCR was recorded from Novaluron 5.25 % + Indoxacarb 4.50 % SC @ 43.31 + 37.13 g.a.i./ha (2.86:1). Cyclaniliprole 100 DC @ 40 g.a.i/ha, Chlorantraniliprole 18.5% SC @ 25g a.i./ha, Flubendiamide 8.33 % + Deltamethrin 5.56 % SC @ 22.50 + 15 g.a.i./ha (250 ml/ha) and Novaluron 5.25 % + Indoxacarb 4.50 % SC @ 43.31 + 37.13 g.a.i./ha are newer group of insecticides, which are relatively safer and more effective against gram pod borer as comparison to conventional insecticides and can be used in successful management of this key pest of chickpea.