Sex pheromone of the alfalfa plant bug, Adelphocoris lineolatus

文献类型： 外文期刊

第一作者： Zhang, Tao

作者： Zhang, Tao;Mei, Xiang-Dong;Zhang, Kaixin;Wu, Kong-Ming;Ning, Jun;Zhang, Tao;Li, Yao-Fa

作者机构：

关键词： mating disruption;(E)-4-oxo-2-hexenal;(E)-2-hexenyl butyrate;electroantennogram detection;GC-EAD;GC-MS;field trapping;Hemiptera;Miridae

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.25； 五年影响因子：2.184 ）

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收录情况： SCI

摘要： In northern China, due to the large-scale adoption of transgenic Bacillus thuringiensis Berliner (Bt) cotton, the number of Adelphocoris lineolatus (Goeze) (Hemiptera: Miridae) has increased quickly, causing significant loss in cotton and alfalfa production. One of the environmentally safe strategies without use of pesticides is the application of insect pheromone for mating disruption. In our study, we aim to identify the active components in sexually mature virgin female A.lineolatus, and activity and optimal ratio of these components. By using gas chromatography-mass spectrometry (GC-MS) and gas chromatography-electroantennographic detection (GC-EAD), we identified three active compounds: hexyl butyrate (HB), (E)-2-hexenyl butyrate (E2HB), and (E)-4-oxo-2-hexenal (4-OHE). We examined the release rate of septum and tube dispensers in a wind tunnel. In a field experiment, deletion of 4-OHE or E2HB resulted in significant suppression of male trap catches, indicating that E2HB or 4-OHE may be the active pheromone components. Traps baited with a blend of 4-OHE and E2HB at 2:5, 3:4, and 4:3 caught significantly more males, suggesting that the optimal ratio of 4-OHE and E2HB could be in the range of 1:1 to 1:2. The addition of a large amount of HB could strongly reduce the attractive activity of both virgin females and artificial lures. We also compared the attractiveness of septum lures and tube lures in field experiments. The septum lures attracted males in the first 3days. The tube lures caught more males after 3days and the attractive effects existed up to 5weeks, suggesting them as a tool for long-term monitoring and control of plant bugs.

分类号： Q96

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