Intergenerational effect of cyproflanilide at sublethal level to Chilo suppressalis (Walker) (Lepidoptera: Pyralidae)

文献类型： 外文期刊

第一作者： Hasnain, Ali

作者： Hasnain, Ali;Amponsah, Priscilla;Mao, Xin;Pu, Qiwen;Zhan, Enling;Zhao, Chunqing;Luo, Guanghua

作者机构：

关键词： Chilo suppressalis; Sublethal effect; Cyproflanilide; Intergenerational effect; Fitness cost

期刊名称：CROP PROTECTION （ 影响因子：2.5； 五年影响因子：3.0 ）

ISSN： 0261-2194

年卷期： 2025 年 193 卷

页码：

收录情况： SCI

摘要： Rice stem borer (RSB) Chilo suppressalis Walker, is a globally voracious pest of the rice crop and has resistance against various insecticides. It is exciting that the novel meta-diamide insecticide cyproflanilide has demonstrated high efficacy against RSB. Therefore, the intergenerational sublethal effects on the parental (F0) and the subsequent offspring (F1) generation were further explored by using the age-stage TWOSEX-MS Chart program in this study. The bioassay results showed the LC50, LC30, and LC10 of 0.046 mg/kg, 0.035 mg/kg, and 0.024 mg/kg, respectively after 96 h. For the biological parameters, the larval duration was prolonged by 1.84 d and 1.43 d in the LC30 groups of the F0 and F1, respectively, while the mean female pupal weight, pupation rate, and emergence rate were significantly decreased in both generations. The mean fecundity was reduced by 20.5 and 10.96 eggs/female in the LC30 groups of the F0 and F1, respectively. Meanwhile, a non-significant difference was observed in the population parameters, but the mean generation time (T) significantly increased by 1.21 d for the LC30 group in the F1 generation. The relative fitness (Rf) costs were 0.64 for LC10 and 0.70 for LC30 in the F0 generation, while 0.85 for LC10 and 0.76 for LC30 in the F1 generation. These findings highlight the potential of sublethal concentrations (LC10 and LC30) of cyproflanilide to alter key biological and population parameters of RSB, providing valuable insights for its integrated pest management program (IPM) in the field.

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