Potential influence of supplemental nutrients intake by adults on the development, fecundity, and population growth of Megalurothrips usitatus (Thysanoptera: Thripidae) offspring

文献类型： 外文期刊

第一作者： Li, Tiantian

作者： Li, Tiantian;Liu, Ying;Liang, Xiao;Wu, Chunling;An, Xingkui;Wang, Ying;Hao, Guifeng;Chen, Yiting;Chen, Qing;Liu, Ying;Liang, Xiao;Wu, Chunling;An, Xingkui;Wang, Ying;Hao, Guifeng;Chen, Yiting;Chen, Qing;Liu, Ying;Chen, Qing

作者机构：

关键词： population dynamics; nutritional ecology; leguminous crops; rearing method

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN： 0022-0493

年卷期： 2025 年 118 卷 2 期

页码：

收录情况： SCI

摘要： Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae), is an important pest in cowpea-growing areas of south China. To study control strategies, M. usitatus has been raised for multiple generations in the laboratory. Considering the impact of supplemental nutrients on colony fitness during laboratory rearing is crucial for achieving a significant population of uniformly developed individuals. Here, an age-stage, 2-sex life table for M. usitatus was developed to examine the impacts of F0 M. usitatus adults fed on 3 different supplemental diets (20% sucrose solution, 20% pollen solution, and 20% honey solution) on the development, fecundity, and population growth of F1 M. usitatus. The findings indicated that, compared to thrips fed on water, F0 adult thrips provided with 3 supplementary diets exhibited a reduction in the developmental duration for each instar, an increase in fecundity, and an extension of the lifespan of F1 M. usitatus, with honey yielding the best results. Similarly, the addition of supplemental nutrients resulted in a reduction in the mean generation time (T) and an enhancement of the net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (lambda) compared to the control group. The effects were highest for honey, followed by pollen, and then sucrose. This study provides favorable evidence concerning the direct impacts of parental nutrition supplementation on the fitness of offspring in insects, and provides information to aid indoor rearing of M. usitatus.

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