1986年,大连口岸在两批进口美国原木中发现危险害虫——细腰湿木白蚁(狭颈动白蚁、太平洋古白蚁)Zootermopsis angusticollis(Hagen) (见图)。主要危害原木,树桩、树干残枝及房屋建筑的木质结构,对木质电线杆及部分埋在土内的原木危害更为严重。在美国太平洋沿岸北部是一种重要的蛀木害虫,我国尚无分布记载。由于该虫是一种危害性强,破坏性大、抗逆性强(尤指抗潮湿和寒冷)的危险性害虫。 In 1986, the Dalian Port found dangerous pests - Zootermopsis angusticollis (Hagen) - from the two batches of imported American logs (see Figure). The main hazards to logs, stumps, trunk branches and the wooden structures of houses and buildings are even more detrimental to wooden utility poles and partially buried logs in the soil. In the northern Pacific coast of the United States is an important borer pests, our country has no distribution records. As the worm is a dangerous, destructive, strong resistance, especially against the damp and cold dangerous pests.