Sublethal and transgenerational effects of a potential plant-derived insecticide, beta-asarone, on population fitness of brown planthopper, Nilaparvata lugens

文献类型： 外文期刊

第一作者： Xu, Xueliang

作者： Xu, Xueliang;Fan, Linjuan;Wu, Caiyun;Liu, Zirong;Yao, Yingjuan;Xu, Xueliang;Wen, Dong;Han, Kehong;Zhao, Muhua;Li, Xiang;Zhao, Chenchen;Zhang, Shu

作者机构：

关键词： Acorus calamus; Delphacidae; essential oils; fecundity; hatchability; Hemiptera; lifetable; Nilaparvata lugens; Oryza sativa; Poaceae; sublethal effect; beta-asarone

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.433； 五年影响因子：2.28 ）

ISSN： 0013-8703

年卷期： 2022 年 170 卷 7 期

页码：

收录情况： SCI

摘要： Many essential oils have excellent insecticidal activity and have the potential to be developed as alternatives to chemical insecticides for pest control. Previously, we showed that beta-asarone, a major constituent of the essential oil derived from Acorus calamus L. (Acoraceae), has strong pesticidal activity against brown planthopper, Nilaparvata lugens (Stal) (Hemiptera: Delphacidae), the most notorious rice pest in Asia. Here, we report the first evaluation of the sublethal and transgenerational effects of beta-asarone on N. lugens. beta-Asarone significantly decreased female longevity, male longevity, fecundity, and hatchability of F-0 generation individuals exposed to the LD30 and LD45 of beta-asarone relative to the acetone control. Moreover, compared with acetone, exposure to LD30 and LD45 of beta-asarone significantly shortened the duration of the egg stage, developmental duration of first instars, and female longevity of F-1 generation individuals. Furthermore, the intrinsic rate of increase (r), finite rate of increase (lambda), and net reproductive rates (R-0) of insects treated with LD30 and LD45 of beta-asarone were significantly lower than those of insects treated with acetone. Compared with acetone, the fecundity and hatchability of F-1 generation individuals were significantly decreased after exposure to beta-asarone at LD30 and LD45. These findings indicate the negative effects of sublethal doses of beta-asarone on N. lugens and provide novel information on the potential use of beta-asarone as a substitute chemical pesticide.

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