Evaluation of various management modules against insectpest complex of blackgram and greengram

An investigation was carried out for the evaluation of various IPM modules against pest complex of greengram and blackgram, at GB Pant University of Agriculture and Technology, Pantnagar. Five IPM modules were applied under field conditions, consisting of seed treatment with imidacloprid 600FS @ 5ml/kg + Trichoderma 4 g/kg, NSKE 5% or neem based formulation 30–40 DAS and yellow sticking traps @ 100/ha as common practices, whereas the chemical application (Novaluron 1 ml/l, Triazophos 0.04%, Indoxacarb 15.8 EC 250 ml/ha and Acephate 500 g/ha) at 45–50 days after sowing varied in all modules. Higher effectiveness was observed in module 1 (seed treatment with imidacloprid 600FS @ 5ml/kg + Trichoderma 4 g/kg, NSKE 5% or neem based formulation 30–40 DAS, Novaluron 1 ml/l (4550 days after sowing), yellow sticking traps @ 100/ha) against whitefly, jassid, Raptotoris and Maruca sp. Module1 proved superior in reducing population of all tested, sucking insect-pests webbing and pod damage by Maruca sp., resulting in higher grain yield of 1317.17 and 1281.26 kg/ha in greengram and blackgram, respectively. Highest cost benefit ratio of 1: 7.21 and 1: 7.48 were also recorded in greengram and blackgram, respectively under IPM module 1.