警惕外来害虫暗梗天牛入侵为害

Precaution of an alien pest,Arhopalus tristis

暗梗天牛Arhopalus tristis(F.)是一种重要的林业害虫,我国目前尚无分布,但已被我国口岸截获多次,必须对该虫的入侵保持警惕。该虫在新西兰危害严重,主要寄主是辐射松等松树,喜入侵火灾危害后的树木;还传播真菌病害,致使木材变色,降低木材质量。对暗梗天牛的形态特征、分布、寄主、危害特点、生物学特性及预防对策等作了简要介绍。

An serious forest pest, Arhopalus tristis （Coleoptera： Cerambycidae）, has been intercepted at several trading ports in China, which attacked Pinus radiata in New Zealand, particularly heavy infestation occurred in trees damaged by fire. This longberned beetle also causes devaluation of logs by vectoring sapstain-causing fungi. It is must be on guard against to prevent its invasion. A brief introduction including the pest＇ s morphological feature, distribution, host, injury type, biological characters, and prevention strategy are given.