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Simultaneous reduction in incidence of Bemisia tabaci (Hemiptera: Aleyrodidae) and Sylepta derogata (Lepidoptera: Pyralidae) using velvetleaf, Abutilon theophrasti as a trap crop

文献类型： 外文期刊

作者： Lin, Kejian 1 ; Lu, Yanhui 1 ; Wan, Peng 2 ; Yang, Yizhong 3 ; Wyckhuys, Kris A. G. 4 ; Wu, Kongming 1 ;

作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

2.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Wuhan 430064, Peoples R China

3.Yangzhou Univ, Coll Hort & Plant Protect, Yangzhou 225009, Jiangsu, Peoples R China

4.Int Ctr Trop Agr CIAT Asia, Hanoi, Vietnam

关键词： Bemisia tabaci;Sylepta derogata;Velvetleaf;Cotton;Multi-pest trap cropping

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：5.918； 五年影响因子：5.955 ）

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收录情况： SCI

摘要： Trap cropping is a useful tool in sustainable pest management. Trap crops usually target a single species or genus of insect pests. In this study, we assessed the potential of velvetleaf (Abutilon theophrasti) as a trap crop for two distant insect species, Bemisia tabaci and Sylepta derogata in Chinese cotton fields from 2006 to 2009. Under laboratory conditions, velvetleaf, a known trap plant of B. tabaci, was preferred over cotton by S. derogata for oviposition, and the subsequent offspring had greater survival and faster development on velvetleaf than cotton. Field-plot trials showed that population densities of S. derogata were 46-110 times greater on velvetleaf than on cotton, respectively. Commercial field trials indicated that S. derogata density and leaf damage were 79-90 % and 83-94 % lower in cotton fields inter-planted with sprayed velvetleaf strips than without them, respectively; whereas densities of B. tabaci were 21-51 % lower in fields with sprayed velvetleaf strips than in those without. At > 10 m from velvetleaf strips, densities of B. tabaci and S. derogata in cotton gradually increased. Velvetleaf strips were an effective trap crop for simultaneous management of B. tabaci and S. derogata in cotton fields.

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