双酰胺类农药生物活性、生态毒性及残留行为研究进展

Advances in bioactivity,ecotoxicity and residual fate of diamide pesticides

双酰胺类农药是继新烟碱类农药之后备受关注的一类杀虫剂,作用靶标为鱼尼丁受体和γ-氨基丁酸受体,对鳞翅目害虫的防治效果优异。随着双酰胺类农药的广泛应用,其对非靶标生物和水生生态环境产生了潜在威胁,且靶标害虫的抗药性问题也日益凸显。本文综合国内外研究进展,从生物活性、生态毒性、分析方法、环境行为和风险评估5个方面对双酰胺类农药的研究进行了综述,对后续研究方向进行了展望,可为该类农药的精准应用、风险规避和有效管理提供科学参考。

Diamide pesticides are a class of insecticides attracting great attention after neonicotinoids.The action target of diamide insecticides is ryanodine receptor or γ-aminobutyric acid receptor,which exhibits extraordinary potency on lepidopteran pests.With the widespread application of diamide pesticides,the potential threat to non-target organisms and aquatic ecosystems and the resistance of target pests have been observed.This study summarizes the biological activity,ecological toxicity,analytical methodology,environmental fate and risk assessment of diamide pesticides based on the research progress at home and abroad and prospects the research orientations in future in order to provide scientific references for accurate application,risk aversion and effective management of diamide pesticides.