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杀虫单对苏云金杆菌具有明显增效作用 ,不同混配比例的共毒系数为 15 5 .6～ 186 .5。苏云金杆菌制剂中混用少量杀虫单防治水稻螟虫可以显著提高防治效果
Pesticide single Bacillus thuringiensis has a synergistic effect, the co-toxicity coefficient of different mixing ratio of 15 5 .6 ~ 186 .5. Bacillus thuringiensis mixed with a small amount of insecticide single control rice stem borer can significantly improve the control effect