用残留法测定拉美斑潜蝇和美洲斑潜蝇成虫对齐墩螨素、三唑磷和高效氯氰菊酯三种药剂的敏感性。结果表明,拉美斑潜蝇成虫对齐墩螨素、三唑磷、高效氯氰菊酯的敏感性差异不显著。24h LC_(50)分别为52.09、16.71和64.94μg/ml;48h LC_(50)分别为2.9、6.75和6.58μg/ml,72h LC_(50分别是1.06、3.67和1.68μg/ml。而美洲斑潜蝇对三种药剂的敏感性差异很大,72hLC_(50)值分别是0.19、4.92和1.56×10_(-3)μg/ml。拉美斑潜蝇和美洲斑潜蝇种群中个体对三种药剂的敏感性分布均匀度呈以下规律:高效氯氰菊酯<齐墩螨素<三唑磷。拉美斑潜蝇对三唑磷的LC_(50)与美洲斑潜蝇相差不大,对齐墩螨素及高效氯氰菊酯的LC_(50)大约是美洲斑潜蝇的5.6倍和1077倍。 Residual method was used to determine the sensitivities of the three herbivores Almotalin, Triazophos and Beta-cypermethrin to adults of L. occidentalis and L. occidentalis. The results showed that there was no significant difference in sensitivities of adult adults of A. occidentalis to that of avermectins, triazophos and beta-cypermethrin. The LC 50 of 24 hours were 52.09, 16.71 and 64.94μg / ml, 48h LC 50 was 2.9, 6.75 and 6.58μg / ml, 72h LC 50, 1.06, 3.67 and 1.68μg / The sensitivity of leaf miner to the three agents varied greatly, and the values ​​of 72hLC_ (50) were 0.19, 4.92 and 1.56 × 10_ (-3) μg / ml, respectively. The distribution of the sensitivity of the pesticide showed the following pattern: cypermethrin