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| Development of synthetic volatile attractant for male Ectropis obliqua moths |
| SUN Xiao-ling1, 2, LI Xi-wang1, 2, XIN Zhao-jun1, 2, HAN Juan-juan1, 2, RAN Wei1, 2, LEI Shu1, 2 |
1 Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, P.R.China
2 Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, P.R.China |
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Abstract The tea geometrid Ectropis obliqua is one of the most serious leaf-feeding insect pests in tea (Camellia sinensis) in East Asia. Although several volatile chemicals emitted from tea plants have been reported to be attractive to E. obliqua moths, no synthetic attractants for E. obliqua moths have been developed. By measuring the behavioral responses of the moth to a series of chemicals in the lab, we found that a blend containing a ternary mixture containing (Z)-3-hexenal, (Z)-3-hexenyl hexanoate and benzyl alcohol clearly attracted to E. obliqua moths of both sex and that (Z)-3-hexenyl acetate could enhance the attractiveness of the ternary blend. Moreover, we found that the volatiles emitted from the plant-E. obliqua larva complex have the same attractiveness as: 1) the blend of volatiles containing the ternary mixture and 2) the blend containing (Z)-3-hexenyl acetate plus the ternary mixture to both male and female moths. In a field bioassay, more male moths were observed on traps that were baited with the blend containing (Z)-3-hexenyl acetate plus the ternary mixture than on control traps. Our study raises the tantalizing possibility that synthetic blends could be deployed as attractants for pests in the field.
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Received: 01 September 2015
Accepted:
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| Fund: The study was sponsored by the Special Fund for Agro-scientific Research in the Public Interest, China (201403030), the National Basic Research Program of China (2012CB114104), the National Natural Science Foundation of China (31272053), and the Division of Science and Technology of Zhejiang Province, China (2015C32081). |
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Corresponding Authors:
SUN Xiao-ling, Tel: +86-571-86650350,
Fax: +86-571-86650331, E-mail: xlsun1974@163.com
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Cite this article:
SUN Xiao-ling, LI Xi-wang, XIN Zhao-jun, HAN Juan-juan, RAN Wei, LEI Shu.
2016.
Development of synthetic volatile attractant for male Ectropis obliqua moths. Journal of Integrative Agriculture, 15(7): 1532-1539.
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