为筛选对抗小菜蛾高效的药剂,山东农业大学植物保护学院联合山东服装职业学院科技人员采用浸叶法测定了毒死蜱、高效氯氰菊酯、多杀菌素、甲维盐、阿维菌素、虫酰肼、丁醚脲等7种不同类型的药剂对小菜蛾田间种群与相对敏感种群的毒力。试验毒死蜱的毒力差异结果表明,与敏感种群相比,毒死蜱对田间抗性种群的毒力有上升现象,毒力倍数为 In order to screen the effective anti-drug against Plutella xylostella, Shandong Agricultural University, College of Plant Protection, Shandong Garment Vocational College Science and Technology personnel using the dipping leaf method for the determination of chlorpyrifos, beta-cypermethrin, spinosad, a dimension salt, abamectin, tebufenozide, Diafenthiuron and other seven different types of agents on the diamondback moth field population and the relative sensitivity of the population. The results showed that the virulence of chlorpyrifos to resistant populations in the field increased compared with the susceptible population, and the virulence factor was