Control effect and field application of four predatory Orius species on Megalurothrips usitatus (Thysanoptera: Thripidae)

文献类型： 外文期刊

第一作者： Dai, Xiaoyan

作者： Dai, Xiaoyan;Wang, Ruijuan;Liu, Yan;Su, Long;Chen, Hao;Zheng, Li;Zhai, Yifan;Dai, Xiaoyan;Wang, Ruijuan;Liu, Yan;Su, Long;Chen, Hao;Zheng, Li;Zhai, Yifan;Dai, Xiaoyan;Wang, Ruijuan;Liu, Yan;Su, Long;Chen, Hao;Zheng, Li;Zhai, Yifan;Yin, Zhenjuan;Wu, Mingfei

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关键词： Orius; Megalurothrips usitatus; biological control; field application

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.2； 五年影响因子：2.3 ）

ISSN： 0022-0493

年卷期： 2024 年 117 卷 2 期

页码：

收录情况： SCI

摘要： Megalurothrips usitatus (Bagrall) is one of the most important pests of cowpea, Vigna unguiculata (Linn.) Walp in South China. Four Orius species, including Orius minutus (L.), Orius nagaii (Yasunaga), Orius sauteri (Poppius), and Orius strigicollis (Poppius), have been commercially produced and widely used as natural enemies of pests in China. In this study, we evaluated the control efficiency of these Orius species on M. usitatus in tropical Hainan Province, China, by recording the survival rates, developmental times, and predation effects in laboratory and semi-field conditions. Laboratory experiments showed that all these 4 Orius species preyed on M. usitatus under the experimental temperatures (25, 30, and 35 degrees C), and O. strigicollis exhibited the highest survival rate and predation effect. Semi-field cage experiments showed that the control effect of 4 Orius species on M. usitatus was significantly higher than that under normal chemical control, with O. strigicollis having the highest effect. Greenhouse experiments in Hainan Province, China, confirmed that O. strigicollis had a significant control effect on M. usitatus. Our study indicated that O. strigicollis has a significant potential for the control of M. usitatus in cowpea fields in southern China.

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