Sublethal effects of chlorantraniliprole on Paederus fuscipes (Staphylinidae: Coleoptera), a general predator in paddle field

文献类型： 外文期刊

第一作者： Khan, Muhammad Musa

作者： Khan, Muhammad Musa;Hafeez, Muhammad;Zhao, Jing;Cai, Wanlun;Ma, Weihua;Hua, Hongxia;Khan, Muhammad Musa;Elgizawy, Karam;Hafeez, Muhammad;Wang, Hanyu;Wang, Hanyu

作者机构：

关键词： Toxicity assessment; Paederus fuscipes; Chlorantraniliprole; Development; Enzyme activity; Risk assessment

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：9.988； 五年影响因子：10.366 ）

ISSN： 0269-7491

年卷期： 2021 年 291 卷

页码：

收录情况： SCI

摘要： Paederus fuscipes is a general predator in rice fields and a non-target organism of chlorantraniliprole, an effective insecticide for insect-pest control in paddy fields. Pesticide hazards to non-target organisms have been a growing global problem for decades. This study was designed to evaluate the toxicity of chlorantraniliprole at lethal and sublethal levels against P. fuscipes larvae and adults. The LC50 of chlorantraniliprole against P. fuscipes adults and larvae were respectively 535.49 and 111.24 mg a.i. L-1, which is higher than the dosage recommended for use in the field (59.38 mg a.i. L-1), but the LC30 and LC10 for larvae are lower than the recommended field dose which showed that the sublethal effects on immature stages are inevitable. Treatment at larval stage with LC30 of chlorantraniliprole significantly elongated the pre-imaginal developmental and pre-oviposition periods. Also, adults exposed directly to chlorantraniliprole oviposited significantly less number of eggs in both LC10 and LC30 treatments. Furthermore, the larval predation efficiency and female bodyweight were also reduced due to exposure to sublethal doses. Meanwhile, the activities of antioxidant (SOD, POD and CAT) and detoxification (P450, AChE and GST) enzymes were also significantly affected by the exposure to these sublethal concentrations. These findings showed that sublethal doses of chlorantraniliprole adversely influenced P. fuscipes development and physiology, and therefore its use as part of integrative pest management should be given further considerations.

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