Control effect and field application of four predatory Orius species on Megalurothrips usitatus (Thysanoptera: Thripidae)
文献类型： 外文期刊
作者： Dai, Xiaoyan 1 ; Wang, Ruijuan 1 ; Liu, Yan 1 ; Su, Long 1 ; Yin, Zhenjuan 4 ; Wu, Mingfei 5 ; Chen, Hao 1 ; Zheng, Li 1 ; Zhai, Yifan 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Nat Enemies Insects, Jinan 250100, Peoples R China
3.MARA CABI Joint Lab Biosafety Shandong Sub Ctr, Jinan 250100, Peoples R China
4.Guizhou Univ, Inst Entomol, Guiyang 550025, Peoples R China
5.Dezhou Acad Agr Sci, Dezhou 253000, Peoples R China
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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