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田间药效试验结果表明,0.5%甲氨基阿维菌素·4000IU/mg苏云金杆菌悬浮剂3个处理1.5hm2、2.25hm2、3.0hm2,药后1d对甘蓝小菜蛾防治效果在77.2%～92.6%之间,药后3d防效为90.9%～98.9%,药后7d防效为91.6%～99.2%,具有速效、高效、持效期长的特点,并且对甘蓝生长安全。建议0.5%甲氨基阿维菌素.4000IU/mg苏云金杆菌悬浮剂防治甘蓝小菜蛾使用剂量1.5g/hm2以上。
The field efficacy test results showed that 0.5% methylobacillus · 4000IU / mg suspension of Bacillus thuringiensis suspension 3 treatments 1.5hm2, 2.25hm2, 3.0hm2, the control effect on the cabbage diamondback moth in 77.2% ~ 92.6% , 3d control effect was 90.9% ~ 98.9% after drug treatment, and the control effect was 91.6% ~ 99.2% on the 7th day after drug treatment. It had the characteristics of quick effect, high efficiency and long lasting period, and was safe for cabbage growth. Proposed 0.5% meth Avicillin. 4000IU / mg Bacillus thuringiensis suspension control cabbage diamondback moth use dose 1.5g / hm2 above.