A combination of predator and selective pesticide improves control of resistant Aphis gossypii (Hemiptera: Aphididae)

文献类型： 外文期刊

第一作者： Guo, Pei

作者： Guo, Pei;Wang, Liuyang;Niu, Yiping;An, Jingjie;Zhang, Tao;Miao, Pu;Li, Chengjun;Li, Shujun

作者机构：

关键词： Cotton aphid; Orius sauteri; afidopyropen; pesticide; natural enemy

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN： 0022-0493

年卷期： 2025 年 118 卷 3 期

页码：

收录情况： SCI

摘要： The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is a major pest in cotton production, notorious for its rapid development of resistance to pesticides, which complicates control efforts. A sustainable solution involves combining selective insecticides with biocontrol agents to reduce pest populations while preserving natural enemies. Afidopyropen, a novel transient receptor potential vanilloid-targeted insecticide, was extremely safe for the minute pirate bug Orius sauteri Poppius (Hemiptera: Anthocoridae), a common predator of small pests. The LC50 values for direct exposure were 592.38, 497.02, and 382.71 mg/L for the fifth instars and female and male adults, respectively. Even at the maximum recommended field rate, afidopyropen had minimal impact on the survival, predation efficiency, and reproduction of pesticide-treated O. sauteri and their offspring. Despite the resistance observed in field-collected A. gossypii, combining a low concentration of afidopyropen with O. sauteri significantly reduced aphid populations. By day 7 post-treatment, aphid density was decreased by over 94.29%. While a higher concentration of afidopyropen initially achieved 98.19% control, aphid populations rebounded over time. This study demonstrated that afidopyropen was extremely safe for O. sauteri as indicated by the higher LC50 values. The combination of a low concentration of afidopyropen with O. sauteri offers an effective control approach for resistant A. gossypii, presenting a novel integrated pest management strategy.

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