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松墨天牛对寄主树木的产卵选择 被引量:29

Oviposition preference of Monochamus alternatus Hope ((Coleoptera:) Cerambycidae) to host plants
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摘要 在室内采用选择行为方法,研究了松墨天牛Monochamusalternatus对几种松属植物的产卵选择行为。结果表明,松墨天牛对黑松Pinusthunbergii的选择性最强,对马尾松P.massoniana的选择性最弱,二者间差异显著,它们与火炬松P.taeda和湿地松P.elliottii间无明显差异。在黑松和马尾松的被松材线虫危害木与健康木之间,松墨天牛明显选择被害木产卵;具产卵痕枝段和虫粪处理过的枝段,对松墨天牛的产卵有显著抑制作用,松墨天牛明显地选择对照枝段产卵。 Monochamus alternatus Hope is a primary vector of pinewood nematode, the causative agent of pine wilt disease. Its oviposition behavior is influenced by semiochemicals during its searching for host plants to feed and oviposit. A series of selection tests were conducted in the laboratory to measure the impacts of plant volatiles and insect pheromone on oviposition preference of M. alternatus. The results showed that M. alternatus had the highest oviposition preference to Pinus thunbergii, while the beetle had the least oviposition preference to P. massoniana. There was significant difference in oviposition preference to P. thunbergii and P. massoniana, but no significant difference when the former two trees were compared with P. taeda and P. elliottii. The trees infested by pinewood nematode were more attractive to the female beetles than healthy trees. When supplied with scar-made bolts and healthy bolts simultaneously, the beetles deposited significantly fewer eggs on the former; when the females were provided with feces-coated bolts and healthy bolts simultaneously, they deposited significantly fewer eggs on the feces-coated bolts as well. The above experiments indicated semiochemicals may have influence on oviposition preference of the females. The result suggested promising potential for pest management by use of semiochemicals to regulate behavior in sawyer beetle management.
出处 《昆虫学报》 CAS CSCD 北大核心 2005年第3期460-464,共5页 Acta Entomologica Sinica
基金 上海市科委重大科技攻关项目(03DZ1939) 中科院知识创新工程项目(KSCX1SW130201) 中国博士后科学基金(2004036123)
关键词 松墨天牛 松材线虫 松树 产卵选择 信息化学物质 Monochamus alternatus Hope pinewood nematode pine tree oviposition selection semiochemicals
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