Bio-efficacy and economics of insecticides for management of helicoverpa armigera (hüb) in chick pea

A newer insecticides viz., proclaim 05 SG @ 8,9 and 11 g.a.i./ha, novaluron 10 EC @ 50, 75 and 100 g.a.i./ha, spinosad 45 EC @ 60 g.a.i./ha, and profenofos 50 EC @ 750 g.a.i./ha were tested and comapred with conventional recommended insecticide, endosulfan 35 EC @ 350 g.a.i./ha. The minimum larval incidence of 1.68 larvae/m row length was recorded in novaluron 10 EC @ 100 g/ha at 3 DAS whereas in profenofos 50 EC @ 750 g/ha, it recorded 1.17 larvae/MRL followed by proclaim 05 SG @ 11 g.a.i./ha (1.18 larvae/MRL). The treatment with proclaim 05 SG @ 11 g.a.i./ha was found to be more effective in reducing the pod damage (3.0%) and enhancement in higher grain yield (2346 kg/ha) followed by spinosad 45 SC @ 60 g.a.i./ha which recorded pod damage of 3.3% and grain yield of 2256 kg/ha as compared to endosulfan which was on par. The highest cost: benefit ratio was recorded in endosulfan 35 EC @ 350 g.a.i./ha (1:15.08).