Bioefficacy of new molecules of insecticides against leaf eating Caterpiller, Spodoptera litura (Fabricius) infesting soybean

Experiments were conducted to find out the efficacy of newer insecticides as foliar spray against leaf eating caterpillar in soybean in farmer’s field during kharif season 2013-14. Foliar sprays of newer molecules of insecticides viz., flubendiamide 480 SC @, spinosad 45 SC @ 187.5 ml/ha, lambda cyhalothrin 5 EC @ 40 g/ha, emamectin benzoate 1.9 EC @ 200 ml/ha, methomyl 40 SP @ 1 kg/ha, chlothianidin 50 WDG @ 250 g/ha, indoxacarb 14.5 SC @ 200 ml/ha and thiodicarb 80 DP @ 400 ml/ha offered excellent protection against leaf eating caterpillar, S. litura infesting soybean. Result indicated that all the treatments as foliar sprays recorded significantly higher yield as compared to untreated control. The treatment with flubendiamide 480 SC @ 200 ml/ha recorded 2100.10 kg/ha yield which is significantly superior over rest of treatments. The treatment with emamectin benzoate 1.9 EC @ 200 ml/ha, spinosad 45 SC @ 187.5 ml/ha, lambda cyhalothrin 5 EC @ 40 g/ha, methomyl 40 SP @ 1 kg/ha, chlothianidin 50 WDG @ 250 g/ha, thiodicarb 80 DP @ 400 ml/ha and indoxacarb 14.5 SC @ 500 ml/ha were next in order of yield. And also indicated that new molecules of insecticides as seed dressers as well as foliar sprays did not have any detrimental effect on natural enemies of soybean ecosystem.