Optimization and field demonstration of theLygus pratensis(Hemiptera: Miridae) sex pheromone
文献类型： 外文期刊
作者： Zhang, Tao 1 ; Zhang, Xiaofang 2 ; Wyckhuys, Kris A. G. 1 ; Yao, Yongsheng 3 ; Li, Haiqiang 4 ; Lu, Wei 5 ; Lu, Yanhui 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
2.Hebei Acad Agr & Forestry Sci, Key Lab IPM Crops Northern Reg North China, Integrated Pest Management Ctr Hebei Prov, Minist Agr & Rural Affairs,Inst Plant Protect, Baoding, Peoples R China
3.Tarim Univ, Coll Plant Sci, Alae, Peoples R China
4.Xinjiang Acad Agr Sci, Inst Plant Protect, Urumqi, Peoples R China
5.Xinjiang Agr Univ, Coll Agron, Urumqi, Peoples R China
关键词： female-produced sex pheromone; Miridae; blend ratio; adult trapping; population monitoring
期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.845； 五年影响因子：4.674 ）
ISSN： 1526-498X
年卷期：
页码：
收录情况： SCI
摘要： BACKGROUND The plant bugLygus pratensisLinnaeus is a widely distributed polyphagous herbivore that increasingly attains outbreak population levels on cotton in northwestern China. Although the sex pheromone ofL. pratensisfrom the United Kingdom has been identified as hexyl butyrate, (E)-2-hexenyl butyrate and (E)-4-oxo-2-hexenal, at a ratio of 100:25:24, this volatile blend does not prove attractive to Chinese field populations. RESULTS In this study, we identified and optimized the sex pheromone ofL. pratensisstrains from northwestern China. In coupled gas chromatography and electro-antennogram detection (GC-EAD) assays, three compounds within whole-body extracts of virginL. pratensisfemales elicited antennal responses: hexyl butyrate, (E)-2-hexenyl butyrate and (E)-4-oxo-2-hexenal. In field trials, a 20:1:30 ratio blend was the most attractive toL. pratensismales. CONCLUSION Traps baited with this synthetic pheromone blend present considerable advantages over traditional sweep-net sampling forL. pratensispopulation monitoring. It can readily be incorporated into monitoring schemes and integrated pest management packages.
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