摘要
Bt可湿性粉剂 (毒力效价 80 0 0 IU) ,防治松毛虫效果较好 ,1 5天以后达到最高效果。最佳用药量 750 g/hm2 ,平均效果能达 92 .54%。
The result of controlling Dendrolimus by use of Bt wet powder (toxicity is 8000IU) is good, which can achieve optimal results after 15 days. The optimal capacity of drug is 750g/hm 2. The average controlling result is 92.54%.
出处
《内蒙古林业科技》
2001年第1期27-28,共2页
Journal of Inner Mongolia Forestry Science and Technology
