Bioefficacy of Certain Chemicals and Biopesticides against Pod Borer [Helicoverpa armigera (Hubner)] 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 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).