害虫及害螨对阿维菌素抗药性研究进展

阿维菌素(avermectins)是一类新型高效广谱的生物源农药,对多种害虫及害螨具有极好的防效。随着阿维菌素在害虫及害螨防治中的广泛应用,害虫和害螨对其的抗性问题日益受到关注。文章综述国内外的最新研究结果表明:小菜蛾Pluttella xylostella(L.)、二斑叶螨Tetranychus urticate Koch等已对阿维菌素产生抗性,对阿维菌素产生抗性的害虫和螨并不总是表现适合度劣势,且抗性一旦产生敏感性较难以恢复;抗性遗传多数由多基因、不完全隐性控制;抗性机理涉及多种因素。综合分析发现害虫和螨对阿维菌素存在较大的、潜在抗性风险。

Advances in the research on the pest resistance to avermectins

Avermectins are a new group of natural compounds with high efficiency and broad spectrum properties, which posses excellent control effects on many insect and mite pests. With the extensive application in pest control, the great attention has been paid on the resistance of insect and mite pests to avermectins. The studies at home and abroad suggest that both Pluttella xylostella(L.) and Tetranychus urticate Koch have developed resistance to avermectins, while the resistance do not always exist the fitness cost. Meanwhile, the sensitivity of the resistant peat populations is hard to recover. Besides, the resistance inheritance to avermectins is subject to polygenic and non-complete recessiveness. The resistantance mechanisms are involved with many factors. The comprehensive analysis reveals that there is a quite high and potential resistance risk of insect and mite pests to avermectins.