TAILIEUCHUNG - Báo cáo lâm nghiệp: "Attraction of the Japanese pine sawyer, Monochamus alternatus, to volatiles from stressed host in China"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Attraction of the Japanese pine sawyer, Monochamus alternatus, to volatiles from stressed host in China. | Ann. For. Sci. 64 2007 67-71 INRA EDP Sciences 2007 DOI forest 2006089 67 Original article Attraction of the Japanese pine sawyer Monochamus alternatus to volatiles from stressed host in China Jianting FANa b Jianghua SUNa Jin SHIc a State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing 100080 China b Graduate School of the Chinese Academy of Sciences Beijing 100080 China c Forest Pest Control Station of Anhui Province Hefei 230031 China Received 15 July 2005 accepted 26 April 2006 Abstract - Ovipositing female Japanese sawyer beetles Monochamus alternatus prefer stressed Pinus massoniana over healthy trees. Host discrimination by M. alternatus suggests that changes in the chemical composition of pines may mediate the host preference of beetles. Volatile compounds from stressed and healthy pine stems were collected using absorbent trap collection method. Significant differences in absolute terpene quantities between stressed and healthy pines occurred for 7 of 10 terpenes. Field trials demonstrated that four terpenes identified from host pines were attractive to M. alternatus with -a-pinene as the most attractive compound to M. alternatus. Ethanol appeared to be an important synergistic compound causing significant increase in attraction. Monochamus alternatus pine volatile trapping terpene attractant Résumé - Des composes émis par les arbres-hôtes stresses sont attractifs pour le cérambycidé Monochamus alternatus. Les femelles du céram-bycidé Monochamus alternatus préfèrent pondre sur les arbres stressés que sur les arbres sains de Pinus massoniana. Cette discrimination dans le choix de l hôte par l insecte pourrait être reliée à des modifications intervenues dans la composition chimique des pins. Les composés volatils émis par des pins stressés et sains ont été collectés en utilisant une méthode de piégeage sur résine adsorbante. La quantité absolue de 7 terpènes sur les 10 .

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