应用Bt生物制剂防治松毛虫试验
Inner Mongolia Forestry Science and Technology（2001）
Abstract
Bt可湿性粉剂(毒力效价8000IU),防治松毛虫效果较好,15天以后达到最高效果.最佳用药量750g/hm2,平均效果能达92.54%.
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Key words
dendrolimus
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