Bioefficacy of Certain Chemicals and Biopesticides against Pod Borer [Helicoverpa armigera (Hubner)] on Chickpea (Cicer arietinum L.)

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 consists of eight treatments including control viz, T1- NSKE 5% @ , T2- Neem Oil 5%, T3-Bacillus thuringiensis@ 5mg/ml, T4-Beauveria bassiana@ 1×1010 conidia/ml, T5-Profenofos 40% + Cypermethrin 4% EC, T6 – Spinosad 45 SC, T7- Emamectin benzoate 5% SG and T0- untreated control in Randomized Block Design (RBD) with three replications. The mean larval population of chickpea pod borer Helicoverpa armigera after two spraying revealed that Emamectin benzoate 5% SG @1 gm/lit was found the most efficient among all treatments with larval population of (2.32 larvae/5 plants), highest cost benefit ratio (1:3.87) and marketable yield (29.16q/ha), followed by Spinosad 45 SC @ 0.5 ml/lit with a larval population of (2.60), cost benefit ratio and yield (1:3.27 and 26.66 q/ha), Profenofos 40%+Cypermethrin 4% EC @ 3 ml/lit with a larval population, cost benefit ratio and yield (2.77, 1:3.42 and 25.83 q/ha), Bacillus thuringiensis @ 5mg/ml with a larval population, cost benefit ratio and yield (3.01, 1:2.93 and 22.5 q/ha), Beauveria bassiana @ 1×1010 conidia/ml with a larval population, cost benefit ratio and yield(3.24, 1:2.83 and 21.25 q/ha), Neem oil 5% with a larval population, cost benefit ratio and yield(3.49, 1:2.25), NSKE 5% with a larval population, cost benefit ratio and yield(3.77, 1:1.75 and 13.33 q/ha). NSKE 5% is least effective among the treatments and control plot T0 with a larval population, cost benefit ratio and yield (5.84, 1:1.54 and 11 q/ha).