文献类型： 外文期刊

作者： Ju, Qian ¹ ; Guo, Xiao-qiang ¹ ; Li, Xiao ¹ ; Jiang, Xiao-jing ¹ ; Jiang, Xiang-guo ² ; Ni, Wan-li ³ ; Qu, Ming-jing ¹ ;

作者机构： 1.Shandong Peanut Res Inst, Qingdao, Peoples R China

2.Xiangyang Acad Agr Sci, Xiangyang, Peoples R China

3.Anhui Acad Agr Sci, Hefei, Peoples R China

关键词： EAG;Olfactory response;Sex pheromone;(E)-2-hexenyl acetate;Synergy effect

期刊名称：JOURNAL OF CHEMICAL ECOLOGY （ 影响因子：2.626； 五年影响因子：2.984 ）

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收录情况： SCI

摘要： Holotrichia parallela (Coleoptera: Scarabaeoidea) is a notorious pest of many crops. To improve the effectiveness of its female-produced sex pheromone (L-isoleucine methyl ester:(R)-(-)-linalool = 6: 1), 14 plant volatiles, including dodecanoic acid, dodecanal, farnesol, alpha-farnesene, (Z)-3-hexen- 1-ol, (E)-2-hexen-1-ol, (Z)-3-hexenyl acetate, (E)-2-hexenyl acetate, (R)-(+)-limonene, alpha-phellandrene, alpha-pinene, ocimene, methyl benzoate, and benzaldehyde, were individually evaluated using electroantennography and olfactometer assays. (E)-2-Hexenyl acetate and (Z)-3-hexenyl acetate were found to elicit the strongest responses in both males and females. Further testing of these two compounds in mixtures with the sex pheromone indicated that (E)-2-hexenyl acetate had a stronger synergistic effect than (Z)-3-hexenyl acetate. Field evaluations showed that mixtures of (E)-2-hexenyl acetate and the sex pheromone resulted in significantly higher catches than the sex pheromone alone. Using a 5: 1 mixture of the sex pheromone and (E)-2-hexenyl acetate, the maximum number of females per trap per day was 14, showing a synergistic effect of a factor of four. For males, a 3: 1 mixture of the sex pheromone and (E)-2-hexenyl acetate yielded a maximum number of 310 individuals per trap per day, equivalent to a synergistic effect of 175%. These results may provide the basis for the development of efficient pest management systems against H. parallela using plant volatiles and insect sex pheromones.