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测定了有机磷类农药毒死蜱、乐果、马拉硫磷、敌敌畏对美洲斑潜蝇各龄幼虫、雌成虫的毒力，进行了成虫取食及产卵的选择、非选择试验和田间小区试验。结果表明：美洲斑潜蝇１、２、３龄幼虫、雌成虫对毒死蜱最敏感，１、２、３龄幼虫对毒死蜱的ＬＣ５０分别是０．０６８２、０．１２１６、０．１４２３ｇ／Ｌ，雌成虫对毒死蜱２４ｈ、４８ｈ的ＬＣ５０分别是０．１５７１和０．１３０４ｇ／Ｌ；毒死蜱对美洲斑潜蝇的取食、产卵拒避持效期分别是６天和８天，用浓度０．４８ｇ／Ｌ毒死蜱处理２、４、６、８天后接虫，幼虫的存活率分别为０、１８．８％、４６．２％和７６．５％；田间用浓度０．４８、０．３２ｇ／Ｌ分别处理，６天的校正虫口减退率分别为９１．０７％和８６．３９％。
The toxicity of organophosphate pesticides such as chlorpyrifos, dimethoate, malathion and dichlorvos to the larvae and adult female adults of Liriomyza sativae was determined. The feeding and oviposition of adults, non-selection test and field plot test . The results showed that the first and second instar larvae and female adults of L. occidentalis were the most sensitive to chlorpyrifos. The LC50 of chlorpyrifos of the first and second larvae were 0.0682, 0.1216 and 0.1423 g / L, respectively, The LC50 of adult chlorpyrifos at 24h and 48h were 0.1571 and 0.1304g / L, respectively. The feeding of chlorpyrifos to L. chemoides was 6 and 8 days respectively, / L chlorpyrifos treatment 2,4,6,8 days after the worm, the survival rate of larvae were 0,18.8%, 46.2% and 76.5%; field with a concentration of 0.48, 0.32g / L After 6 days treatment, the reduction rates of oral insects were 91.07% and 86.39% respectively.