Feeding on Beauveria bassiana-treated Frankliniella occidentalis causes negative effects on the predatory mite Stratiolaelaps scimitus
文献类型： 外文期刊
第一作者： Zhang, Xingrui
作者： Zhang, Xingrui;Wang, Xiaozhou;Wu, Shengyong;Zhang, Mengdi;Gao, Yulin;Wu, Shengyong;Wang, Xiaozhou;Sarkar, Shovon Chandra;Zhang, Zhike
作者机构：
关键词： life table; sublethal effects; intraguild interaction; entomopathogenic fungi; soil-inhabiting predatory mite
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
页码：
收录情况： SCI
摘要： The soil-inhabiting predatory mite Stratiolaelaps scimitus (Womersley) (Acari: Laelapidae) and the entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin (Hypocreales: Cordycipitaceae) can both serve as effective biocontrol agents against the pest Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae). Assuming the fungus B. bassiana does not adversely affect S. scimitus, the combined application of these 2 agents could enhance the suppression of F. occidentalis. The age-stage, 2-sex life table was used in the present study to evaluate the effects of B. bassiana strain GZGY-1-3 on S. scimitus, mediated through F. occidentalis feeding. When S. scimitus fed on the prepupae of F. occidentalis that had been exposed to the GZGY-1-3 suspension for 24 h, the developmental times of protonymph, deutonymph, and preadult mites were significantly longer and the mites' longevity and fecundity were significantly lower than mites fed on untreated F. occidentalis. The intrinsic rate of increase (r), finite rate of increase (lambda) and net reproduction rate (R0) of the mite population were all significantly lower in the treatment where B. bassiana was applied compared to untreated populations. Specifically, the indirect effects of B. bassiana on S. scimitus was mediated through mite consumption of fungus-infected pupae of F. occidentalis. Our results showed that the combined application of B. bassiana and S. scimitus may pose potential risks for the simultaneous biocontrol of F. occidentalis.
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