松干蚧是我国松林的主要害虫。由于它虫体很小,生活隐蔽,形态特化,因此在初发生的松林不易引起人们的注意。当林木严重被害,出现枝干弯曲,针叶枯黄等症状时,如不及时防治,对松林可造成毁灭性的灾害。松干蚧最早于1950年在山东崂山发现。当时只看到松树有垂枝枯死现象,怀疑是病害,至1952年在清理病枯木时,始见此虫。目前已蔓延到辽宁、江苏、浙江等省,严重威胁着松林的正常生长。 Song Kuwana pine is the main pest in our country. Because of its small insect body, life hidden, morphological specialization, so in the early pine forest is not easy to arouse people’s attention. When the forest trees are severely victimized and the symptoms such as branch bending and yellowing of needles appear, they can cause devastating disaster to pine forests if they are not controlled in time. Song Kuwani first discovered in Laoshan in Shandong in 1950. At that time, only the pine tree was withered and withered. It was suspected to be a disease. By 1952, when the dead wood was cleared, the insect began to see. Has now spread to Liaoning, Jiangsu, Zhejiang and other provinces, a serious threat to the normal growth of pine forests.