BIO-EFFICACY OF BIOPESTICIDES AGAINST Lipaphis erysimi (KALT,) ON CABBAGE UNDER LABORATORY CONDITION

摘要

A laboratory experiment was conducted to determine the bio-efficacy of Beauveria bassiana (Balsamo) Vuillemin and Verticillium lecaniialone and in combination with chemical insecticides against Lipaphis erysimi(Kalt.) on cabbage at bio-control laboratory, Department of Entomology, College of Agriculture, Junagadh Agricultural University, Junagadh during/y/Z>/ season of 2009. The results revealed that imidacloprid 0.005%, mcthyl-o-denieton 0.05% and polytrin-C 0.044% alone recorded the highest mortality, whereas B. bassiana @ 1.25 kg/ha or V. lecanii @ 1.0 kg/ha combined with imidacloprid 0.005%, methyl-o-demeton 0.05% and polytrin-C 0.044% were the next best treatments and can be recommended for eco-friendly management ofZ,. erysimiin cabbage ecosystem.