Effects of Multi-Generational Rearing on Job's Tears on the Performance and Host Plant Preference of Spodoptera frugiperda (Lepidoptera: Noctuidae)

文献类型： 外文期刊

第一作者： Yao, Feng-Luan

作者： Yao, Feng-Luan;Wu, Yao-Yao;Lei, Gao-Ke;Ding, Xue-Ling;Lu, Xue-Song;Zheng, Yu;He, Yu-Xian;Yao, Feng-Luan;Wu, Yao-Yao;Lei, Gao-Ke;Ding, Xue-Ling;Lu, Xue-Song;Zheng, Yu;He, Yu-Xian;Yao, Feng-Luan;Wu, Yao-Yao;Lei, Gao-Ke;Ding, Xue-Ling;Lu, Xue-Song;Zheng, Yu;He, Yu-Xian;Huang, Xiao-Yan

作者机构：

关键词： fall armyworm; Zea mays; Coix lacryma-jobi; acclimation; host plant adaptation; life table; population projection

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2025 年 16 卷 8 期

页码：

收录情况： SCI

摘要： The fall armyworm (FAW), Spodoptera frugiperda, is a highly polyphagous pest posing a major threat to Poaceae crops, particularly corn (Zea mays), in China. However, its ability to adapt to Job's tears (Coix lacryma-jobi), an edible and medicinal Poaceae species, under continuous rearing remains insufficiently understood. In this study, FAW survival, development, and reproduction were assessed over eight generations on two cultivars of Job's tears, 'Cuiyi 1' and 'Puyi 6'. Feeding and oviposition preferences were also examined in FAW populations reared on 'Puyi 6' by offering corn and 'Puyi 6' as hosts. Sustained rearing for five to eight generations on both cultivars significantly increased population fitness, with greater improvements observed in the 'Puyi 6' group. FAW reared on corn or 'Puyi 6' for two generations exhibited strong preferences for corn, whereas those reared on 'Puyi 6' for five to eight generations showed no significant host preference. These findings suggest that transgenerational adaptation markedly improved FAW performance and acceptance of Job's tears, underscoring the need for intensified monitoring of FAW dynamics during the cultivation of Job's tears.

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