文献类型： 外文期刊
作者： Tang, L. D. 1 ; Zhao, H. Y. 2 ; Fu, B. L. 1 ; Han, Y. 1 ; Liu, K. 1 ; Wu, J. H. 3 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou, Peoples R China
2.Hainan Acad Agr Sci, Inst Plant Protect, Hainan Key Lab Control Plant Dis & InsectPests, Haikou, Peoples R China
3.South China Agr Univ, Dept Entomol, Coll Agr, Guangzhou 510642, Guangdong, Peoples R China
关键词： Beneficial insects;color sticky trap;cowpea;insect monitoring
期刊名称：NEOTROPICAL ENTOMOLOGY （ 影响因子：1.434； 五年影响因子：1.46 ）
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收录情况： SCI
摘要： The bean flower thrips, Megalurothrips usitatus (Bagrall) (Thysanoptera: Thripidae), is an important pest of legume crops in South China. Yellow, blue, or white sticky traps are currently recommended for monitoring and controlling thrips, but it is not known whether one is more efficient than the other or if selectivity could be optimized by trap color. We investigated the response of thrips and beneficial insects to different-colored sticky traps on cowpea, Vigna unguiculata. More thrips were caught on blue, light blue, white, and purple traps than on yellow, green, pink, gray, red, or black traps. There was a weak correlation on the number of thrips caught on yellow traps and survey from flowers (r = 0.139), whereas a strong correlation was found for blue traps and thrips' survey on flowers (r = 0.929). On commercially available sticky traps (JiaduoA (R)), two and five times more thrips were caught on blue traps than on white and yellow traps, respectively. Otherwise, capture of beneficial insects was 1.7 times higher on yellow than on blue traps. The major natural enemies were the predatory ladybird beetles (63%) and pirate bugs Orius spp. (29%), followed by a number of less representative predators and parasitoids (8%). We conclude the blue sticky trap was the best to monitor thrips on cowpea in South China.
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