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生防试验表明,应用Bt(WP、16000IU/mg)2000倍液、Bt(SC、2000IU/μL)800倍液及以上浓度防治美国白蛾各龄幼虫效果可达98％以上,在生产上可替代化学农药。
Biocontrol test showed that the effect of using 800 times liquid of Bt (WP, 16000IU / mg), 800 times liquid of Bt (SC, 2000IU / μL) and above for controlling larvae of all stages of American white moth can reach more than 98% Alternative chemical pesticides.