1985年7月4日,我们在进口啄木的检查中,在樟子松皮下发现了大量的松干蚧皮壳,活卵42粒,雌虫5头。由于松干蚧在国内只有5种,它们对松树都有不同程度的危害,而且由于虫体小,隐蔽式生活,因而虫口密度小时很难发现,它们又是吸取树木的汁液,表面上没有什么危害症状化学防治也很难收到效果。(最为典型的是日本松干蚧 Matsucoccu matsumurae)为了达到 July 4, 1985, we check in the import of woodpecker, Pinus sylvestris found in a large number of pine cortex cadmium shell, 42 live eggs, 5 females. Due to the fact that there are only 5 kinds of pine scales in the country, they all have different degrees of harm to the pine trees. Due to the small insect body and concealed life, the population density of insects is hard to find. They are also the trees that absorb the juice and have no harm on the surface Chemical control is also difficult to receive results. (The most typical is Japanese Matsucoccu matsumurae) In order to achieve