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用苏云金杆菌S387防治水稻一代二化螟 ,在秧田卵孵高峰期和大田枯鞘期卵孵高峰各用药 1次 (375 0mL·hm-2 ) ,具有较好的防治效果 ,枯心率下降 83 83% ,残留活虫数下降 93 75 % .
Bacillus thuringiensis S387 was used to control one generation of rice stem borer (SRB), with one control (375 0 mL · hm-2) at the peak of egg hatching and the peak of egg hatching in field at seedling stage, with good control effect and decreased heart rate %, The number of residual live insects decreased 93 75%.