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    188宝金博页面版: 【精品】Ips subelongatus pheromone

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    内容提示： Insect Science (2010) 00, 1–9, DOI 10.1111/j.1744-7917.2010.01375.xORIGINAL ARTICLEField responses of the Asian larch bark beetle, Ipssubelongatus, to potential aggregation pheromonecomponents: disparity between two populationsin northeastern ChinaLi-Wen Song1 ,2, Qing-He Zhang3, Yue-Qu Chen2, Tong-Tong Zuo2and Bing-Zhong Ren11School of Life Sciences, Northeast Normal University, Changchun,2Institute of Forest Protection, Jilin Provincial Academy of ForestrySciences, Changchun, China,3Sterling Internation...

    文档格式：PDF | 页数：9 | 浏览次数：109 | 上传日期：2014-03-12 20:58:31 | 文档星级：
    Insect Science (2010) 00, 1–9, DOI 10.1111/j.1744-7917.2010.01375.xORIGINAL ARTICLEField responses of the Asian larch bark beetle, Ipssubelongatus, to potential aggregation pheromonecomponents: disparity between two populationsin northeastern ChinaLi-Wen Song1 ,2, Qing-He Zhang3, Yue-Qu Chen2, Tong-Tong Zuo2and Bing-Zhong Ren11School of Life Sciences, Northeast Normal University, Changchun,2Institute of Forest Protection, Jilin Provincial Academy of ForestrySciences, Changchun, China,3Sterling International, Inc., Spokane, Washington, USAAbstractMotsch. to three potential aggregation pheromone components, ipsenol (racemic or [−]-enantiomer), ipsdienol(racemicor[+]-enantiomer)and3-methyl-3-buten-1-ol, weretestedusing partial or full factorial experimental designs in two provinces (Inner Mongolia andJilin) of northeastern China. Our field bioassays in Inner Mongolia (Larix principis-rupprechtii Mayr. plantation) clearly showed that ipsenol, either racemic or 97%-(−)-enantiomer, was the only compound that significantly attracted both sexes ofI. subelon-gatus, while all other compounds (singly or in combinations) were unattractive. Therewere no two- or three-way synergistic interactions. However, in Jilin Province (L. gmelini[Rupr.] Rupr. Plantation), all the individual compounds tested were inactive, except a veryweak activity by 97%-(−)-ipsenol in 2004 when the beetle population was very high.While a combination ofipsenol and ipsdienol (racemates or enantiomerically pure naturalenantiomers) showed a significant attraction for both sexes of I. subelongatus, indicat-ing a two-way synergistic interaction between these two major components, addition of3-methyl-3-buten-1-ol to these active binary blend(s) did not have any effects on trapcatches, suggesting that ipsenol and ipsdienol are the synergistic aggregation pheromonecomponents of I. subelongatus in Jilin Province. It seems that 97%-(−)-ipsenol in InnerMongolia or the binary blend of97%-(−)-ipsenol and 97%-(+)-ipsdienol in Jilin Provinceare superiorto theircorresponding racemates, whichmightbe due eitherto weakinhibitoryeffects ofthe antipode enantiomers or to reduced release rates ofthe active natural enan-tiomer(s) in the racemate(s). Our current bioassay results suggest that there is a stronggeographical variation in aggregation pheromone response ofI. subelongatus in northeast-ern China. Future research on the pheromone production and response ofI. subelongatusfrom different regions in Northeast Asia will surely improve our understanding of thedynamic aggregation pheromone system ofthis economically important forest pest insect.Behavioral responses of the Asian larch bark beetle, Ips subelongatusKey words aggregation pheromone, enantiomers, geographical variation, Ips subelon-gatus, ipsdienol, ipsenolCorrespondence: Bing-Zhong Ren, School ofLife Sciences,Northeast Normal University, 5268 Renmin Street, Changchun130024, China. Tel: +86 431 85098200; email: renbz279@nenu.edu.cnIntroductionThe Asian larch bark beetle, Ips subelongatus Motsch.1860, is one of the most important pest insects inlarch plantations and natural stands (Larix spp.) innortheast Asia (Zhang & Niemeyer, 1992). This barkC 2010 The AuthorsJournal compilation C Institute ofZoology, Chinese Academy ofSciences1

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