BIO-EFFICACY OF BIO-PESTICIDES ALONE AND IN COMBINATION WITH INSECTICIDES AGAINST Lipaphis erysimi (KALTENBACH) ON CABBAGE UNDER LABORATORY CONDITION

摘要

An experiment was carried out to study the bio-efficacy of fungal bio-pesticides alone and in combination with insecticides against nymph of Lipaphis erysimi (Kaltenbach) at College Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during Rabi 2011 and 2012.Study on bio-efficacy of fungal bio-pesticides alone and in combination with insecticides against nymph of Lipaphis erysimi (Kaltenbach) revealed that treatments of acetamiprid 0.004 per cent and methyl—demeton 0.025 per cent were found highest mortality of L. erysimi as compare to other eleven tested other insecticide. The next best treatments were V. lecanii @ 1.0 kg/ha + acetamiprid 0.002 per cent, B. bassiana @ 1.25 kg/ha + acetamiprid 0.002 per cent, V. lecanii @ 1.0 kg/ha + methyl-o-demeton 0.012per cent, B. bassiana @ 1.25 kg/ha + methyl-o-demeton 0.012 per cent. The M. anisopliae alone or combination with insecticides were found less effective.