农药学学报2001，Vol.3Issue(1)：41-45,5.
小菜蛾对阿维菌素的抗性机制及交互抗性研究
Stuy on Resistance Machanisms and Cross-Resistance of Abamectin in Diamondback Moth Plutella oxylostella (L.)
梁沛 1高希武 1郑炳宗 1戴洪波2
作者信息
- 1. 中国农业大学昆虫系,
- 2. 吉林省榆树市农技推广中心,
- 折叠
摘要
Abstract
Synergism of abamectin(AVMs) by piperonyl butoxide (PB) and TPP in both AVMs-resistant(AV-R) and susceptible(XH-S) strains of diamondback moth ［DBM, Plutella oxylostella (L.)］ was investigated. Both PB and TPP increased the toxicity of AVMs to AV-R strain and the synergism ratios are 8.2- and 5.5-folds, respectively, but they all have no effect on the toxicity of AVMs to XH-S strain. It suggested that the high resistance to AVMs in DBM is correlated to carboxylesterase and mixed functional oxidase(MFO), which was verified by the comparison of cytochrome P450 content between these two strains. The cross-resistance of AVMs to pyrethroid insecticides and insect growth regulators was also studied in AVMs-selected strains. AVMs-selected strains possessed the low cross-resistance between four pyrethroid insecticides tested and abamectin, but no cross-resistance to two insect growth regulators, flufenoxuron and chlorfluazuron.关键词
小菜蛾/阿维菌素/交互抗性/增效剂/细胞色素P450分类
农业科技引用本文复制引用
梁沛,高希武,郑炳宗,戴洪波..小菜蛾对阿维菌素的抗性机制及交互抗性研究[J].农药学学报,2001,3(1):41-45,5.
