松树皮象是象虫科的一种取食幼苗韧皮部的害虫,又名松大象皮虫,主要危害二至五年生的落叶松幼树,切断幼树的疏导组织,从而使苗木死亡,在河北省塞罕坝机械林场连年成灾。面积多达4000余亩,苗木死亡率达60%,为了控制该虫的危害,笔者自1999年以来连续对松树皮象进 Pine bark is a kind of insects that feed on the phloem of the seedlings, like the pine bark. It is also known as the elephant loiper and damages the larch saplings from two to five years old. The pine bark is cut off and the seedlings are killed. Saihanba mechanical forest farm in Hebei Province successive years of disaster. As many as 4,000 acres of area, seedling mortality rate of 60%, in order to control the harm of the insect, the author since 1999, pine bark like