Bioefficacy and economics of some newer insecticides and bio-pesticides against Helicoverpa Armigera (Hub.) on chickpea (Cicer Arietinum L.) crop

Bioefficacy of four newer insecticides (Buprofezin 5.65%+Deltamethrin 0.72% EC, Indoxacarb15.8% EC, Flubendiamide 480 SC and Methomyl 40% SP), one conventional insecticide (Quinolphos 25% EC), four biopesticides (Metarhizium anisopliae, Beauveria bassiana, HaNPV and EPN (Heterorhabditis indica) were evaluated against chickpea pod borer, Helicoverpa armigera in chickpea crop. All the treatments were found significantly effective in reducing the infestation of pod borer and increasing the yield compared with control. Application of flubendiamide @ 121.98 ml/ha was the most effective treatment in reducing the pod borer infestation and percent pod damage at all observational interval resulting highest grain yield 1833.33 kg/ha and 1802.77 kg/ha and maximum net profit Rs. 12436.62 and 12031.84/ha during 2009-10 and 2010-11, respectively and it was followed by methomyl @ 1.0 kg/ha. Among biopesticides, HaNPV @ 500 LE was found more effective with highest net profit. The maximum cost benefit ratio (1: 7.09 and 1: 6.13) during 2009-10 and 2010-11, respectively was also obtained in the treatment of Beauveria bassiana.