数字农科院2.0

Sublethal concentrations of imidacloprid cross generational inhibit the reproductive capacity, feeding efficiency, and immune function of Therioaphis trifolii (Monell)

文献类型： 外文期刊

作者： Kaihui Zhu;Chi Wu;Haoyang Hao;Xu Liu;Dejun Li;Shaodan Wang;Chunmei Yang;Zehua Zhang;Yu Duan;Zihua Zhao;Xiongbing Tu

关键词： Therioaphis trifolii;imidacloprid;fecundity;transgenerational;feeding efficiency;immune ability

期刊名称： Journal of Integrative Agriculture

ISSN： 2095-3119

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： The application of imidacloprid insecticides for the management of forage grass pests, such as Therioaphis trifolii, is a widely adopted practice; however, the transgenerational impacts of sublethal doses of imidacloprid on T. trifolii remain largely unexplored. This research initially employed toxicity assessments to identify sublethal concentrations of imidacloprid in T. trifolii. Following this, a series of experiments—including life table analysis, transcriptome sequencing, evaluations of feeding efficiency, and assessments of immune capacity—were conducted to elucidate the diverse effects on the F2 generation of T. trifolii resulting from exposure to sublethal concentrations of imidacloprid in the F0 and F1 generations. Toxicity testing experiments revealed that exposure to imidacloprid at concentrations of 0.1 mg/L and 0.5 mg/L did not significantly impact the survival and reproductive rates of a single generation of T. trifolii. When both F0 and F1 generations T. trifolii were subjected to a concentration of 0.5 mg/L imidacloprid, a notable decline in the intrinsic growth rate and reproductive capacity of F2 generation T. trifolii was observed in comparison to the control treatment group. Honeydew secretion during feeding decreased by 36.7% within a 72-hour period. Fatty acid content decreased by 30.5%. And there was a significant impairment of hemolymph immune response to exogenous bacterial and fungal challenges. This study represented the inaugural investigation into the transgenerational impacts of sublethal concentrations of imidacloprid on T. trifolii. The findings of our study indicate that sublethal concentrations of imidacloprid cross generational inhibit the reproductive capacity, feeding efficiency, and immune function of T. trifolii. This research offers important insights for enhancing the application strategies of imidacloprid within the framework of integrated pest management for forage crops.

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