Toxicity of Eight Insecticides on Drosophila suzukii and Its Pupal Parasitoid Trichopria drosophilae

文献类型： 外文期刊

第一作者： Gao, Huanhuan

作者： Gao, Huanhuan;Chen, Peng;Zhang, Ansheng;Zhou, Xianhong;Zhuang, Qianying;Gao, Huanhuan;Chen, Peng;Zhang, Ansheng;Zhou, Xianhong;Zhuang, Qianying;Gao, Huanhuan;Chen, Peng;Zhang, Ansheng;Zhou, Xianhong;Zhuang, Qianying;Wang, Yan

作者机构：

关键词： spotted wing drosophila; sublethal effects; ecotoxicity; safety evaluation; integrated pest management

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2024 年 15 卷 11 期

页码：

收录情况： SCI

摘要： The pupal parasitoid Trichopria drosophilae (Hymenoptera: Diapriidae) has been evaluated as a biological agent of Drosophila suzukii. Integrated pest management strategies mostly rely on combined application of multiple insecticides and natural enemies. This study assessed the toxicity of eight common insecticides against D. suzukii in fruit orchards and the effects of semilethal and sublethal doses on T. drosophilae. The eight insecticides had higher toxicities to D. suzukii larvae with lower LC50 values than those for adults. Adults and larvae showed high susceptibility to emamectin benzoate, spinetoram, lambda-cyhalothrin, abamectin, and sophocarpidine. The median lethal doses (LC50) of lambda-cyhalothrin and imidacloprid to T. drosophilae adults were 60.41 mg/L and 100.58 mg/L, higher than the toxicities of the other six insecticides. Applying chlorantraniliprole, emamectin benzoate, sophocarpidine, abamectin, azadirachtin, and spinetoram resulted in low toxicity to D. suzukii pupae. However, the exposure of D. suzukii pupae or larvae to these insecticides at semilethal and sublethal doses decreased the parasitism or eclosion rate of T. drosophilae. These results improve our understanding of the effects of insecticide residues on T. drosophilae development and provide a basis for the combined use of chemical and biological options for managing D. suzukii.

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