松纵坑切梢小蠹信息化学物质野外诱集效果试验

Field Trapping Test on Semiochemicals of Pine Shoot Beetle Tomicus piniperda L.

为了研究信息化学物质对松纵坑切梢小蠹的林间引诱活性,探讨用信息化学物质防治与监测松纵坑切梢小蠹的方法, 2002年利用从加拿大引进的人工合成缓释性聚集信息化合物诱芯以及Lindgren漏斗式诱捕器,在长春市净月潭林场进行了信息化学物质的诱集效果试验。结果表明,供试的 5种α-蒎烯同分异构体中有 4种对松纵坑切梢小蠹有明显的引诱效果,其中(5% + /95% -)α-蒎烯的诱集效果极显著地高于其它几种同分异构体。同时试验了 3种信息化学物质壬醛(NL)、桃金娘烯醇(ML)和反式马鞭草烯醇(TV)对(5% + /95% -)α-蒎烯的诱集增效作用,试验结果表明,壬醛(NL)和反式马鞭草烯醇(TV)的组合对(5% + /95% -)α-蒎烯的增效作用极显著。

For further development of the methods of controlling and monitoring the beetle with semiochemicals, field trapping tests were conducted in Jingyuetan Forest Farm of Changchun, and the trapping efficacy of some semiochemicals to pine shoot beetle, Tomicus piniperda, was tested by means of artificial aggregation semiochemical lures and Lindgren funnel traps. The results demonstrate that four tested α-pinene isomers are attractive to pine shoot beetle, in which (5%+/95%-) α-pinene is the most attractive. Meanwhile, trapping efficacy of three kinds of secondary components, i.e., nonanal, myrtenol and trans-verbenol, was investigated, which suggested that the combination of (5%+/95%-) α-pinene, nonanal and trans-verbenol has the significantly attractive activity compared with the others.