棉铃虫抗甲氧虫酰肼种群对12种杀虫剂的交互抗性

摘要

A methoxyfenozide mid-resistance population (R, 30.57-fold) and a susceptible population (S) of Helicoverpa armigera were used for evaluating cross resistance to 12 common insecticides with leaf-dipping method in the laboratory.The results showed that the resistant population had medium cross-resistance to tebufenozide, with a cross-resistance ratio of 13.57 fold.There was little cross-resistance to indoxacarb (3.05), and no cross-resistance to phoxim, chlorpyrifos, methomyl, beta-cypermethrin, deltamethrin, chlorfenapyr, lufenuron, chlorfluazuron, hexaflumuron and emamectin in the resistant population.It suggested that it could be helpful to delay resistance development to methoxyfenozide in H.armigera if apply the insecticide in alternation with the insecticides with no cross-resistance in the field.%利用室内筛选获得的甲氧虫酰肼中等抗性种群(R,30.57倍)和敏感种群(S),采用浸叶法测定了棉铃虫对12种常用杀虫剂的交互抗性.结果表明抗性种群对虫酰肼产生了13.57倍的中等水平交互抗性;对茚虫威的抗性倍数为3.05倍,无明显文互抗性;而对辛硫磷、毒死蜱、灭多威、高效氯氰菊酯、溴氰菊酯、虫螨腈、虱螨脲、氟啶脲、氟铃脲和甲氨基阿维菌素苯甲酸盐的抗性倍数在0.50～2.36倍之间,无交互抗性.试验结果提示,在棉铃虫对甲氧虫酰肼的抗药性治理中,轮换使用与甲氧虫酰肼没有交互抗性的杀虫剂将可有效延缓其抗药性发展.