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Article Abstract
The fall armyworm (FAW), , is a highly polyphagous pest posing a major threat to Poaceae crops, particularly corn (), in China. However, its ability to adapt to Job's tears (), 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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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12386935 | PMC |
| http://dx.doi.org/10.3390/insects16080773 | DOI Listing |
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