Assessment of avoidable yield losses due to major pests of lentil in Eastern India

The results revealed that aphid caused more economic damage (yield loss of 12.19%) in lentil than by pod borers (yield loss of 4.54%). Single application of imidacloprid 17.8 SL @ 0.3 ml/l of water was more effective (91.44% of population reduction) in suppressing the aphid population at vegetative stage of lentil whereas, application of indoxacarb 14.5 SC @ 0.5 g/l of water at reproductive stage reduced the pod borer population more efficiently (50.63% of population reduction). However, two sprays one with Imidacloprid 17.8 SL @ 0.3 ml/ l of water at vegetative stage and another one with indoxacarb 14.5 SC @ 0.5 g/l of water at reproductive stage reduced both the pests effectively (94.46% of aphid and 69.47% of pod borer). The economics study proved the superiority of single application of imidacloprid as the most viable treatment by recording maximum IBCR over other treatments.