Efficacy of Certain Chemicals and Biopesticides against Gram Pod Borer, Helicoverpa armigera (Hubner) on Chickpea (Cicer arientinum L.)
Mathpati Sainathbaba Nagnath *
Department of Entomology, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Anoorag R. Tayde
Department of Entomology, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Saima Habib Khan
Department of Chemistry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
Kamin Alexander
Department of Biological Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
The present study was carried out during the Rabi season of 2024-2025. The experiment was done in Randomized Block Design (RBD). Eight treatments were applied, each replicated three times, viz Profenofos 40% + Cypermethrin 4%, Beauveria bassiana 1.15% WP, NSKE @ 5%, Spinosad 45% SC, Neem oil @ 5%, Chlorantraniliprole 18.5% SC, Bacillus thuringiensis 1×10⁹ CFU/ml and untreated control. Two rounds of spray after 15 days applications were given to manage Helicoverpa armigera. Among all treatments, (Chlorantraniliprole 18.5% SC) recorded the lowest larval population (0.35 larvae/plant), followed by (Profenofos + Cypermethrin) at (0.41), (Spinosad) (0.48), (Neem oil) (0.53), (NSKE) (0.61), (Beauveria bassiana) (0.68) and (Bacillus thuringiensis) (0.75) All these treatments significantly reduced pest incidence compared to the untreated control, which recorded a much higher population of 3.42 larvae/plant. In terms of economics, the highest benefit-cost ratio (BCR) was observed in T6 (Chlorantraniliprole 18.5% SC) with 1:2.54, followed by T1 (1:2.30), T4 (1:2.43), T5 (1:2.08), T3 (1:1.92), T2 (1:1.58), and T7 (1:1.05), whereas the lowest BCR was recorded in the untreated control (T0) with 1:0.90.
Keywords: Chickpea, Helicoverpa armigera, biopesticides, insecticides, cost-benefit ratio