西北农林科技大学植保资源与病虫害治理重点实验室近期明确了5%去甲斑蝥素微乳剂对小菜蛾的田间防治效果。研究人员采用浸叶法,测定了5%去甲斑蝥素微乳剂对小菜蛾的室内毒力;选用不同剂量5%去甲斑蝥素微乳剂和不同施药时期进行田间防治试验,观察该药剂对小菜蛾的田间防治效果。结果表明,5%去甲斑蝥素微乳剂对小菜蛾3龄幼虫具有较 Northwest A & F University Key Laboratory of Plant Protection Resources and Pest Management recently identified 5% of norcantharidin microemulsion on the diamondback moth field control effect. Researchers used the immersion leaf method to determine the indoor toxicity of 5% norcantharidin microemulsion against Plutella xylostella. Five different doses of 5% norcantharidin microemulsion and different pesticide application periods were chosen to observe the toxicity of Field Control of Plutella xylostella in Field. The results showed that 5% of norcantharidin microemulsion had more effect on 3rd instar larvae of Plutella xylostella