Evaluation of Bio-rational Insecticides and Bio-pesticides Against Pod Borer Complex in Pigeon Pea

The field experiments were conducted at Bidhan Chandra Krishi Viswavidyalaya, Kalyani, West Bengal, India during kharif seasons (July–October) of 2013 and 2014 to evaluate the efficacy different bio-rational pesticides against major production constrains pigeon pea which is pod borer complex. laid out following randomized block design comprising eleven treatments including control with three replications. Treatments applied twice pneumatic knapsack fifteen days interval starting initiation target pest formation stage. Pre-treatment counts larvae lepidopteran borers had been taken from arbitrarily selected five tagged plants every replication discarding border effect subsequently post treatment have 3, 7 14 after each spray. Number maggots per recorded for fly infestation before spray Pooled two years results revealed that flubendiamide lowest mean larval population Helicoverpa armigera (0.98 plant-1) Maruca vitrata (0.65 highest seed yield.Among bio-pesticides, Bacillus thuringiensis azadirachtinfound beeffective complex in pea. data showed fenvalerate, spinosad effective 1.13, 1.63 1.75 pod-1 respectively.