红松疱锈病,在辽宁省草河口人工林中已有发生,根据59年的调查,局部林区发病率达20%以上。在被害的树干上虽不能生成坏死斑,但被害树木的生长势已呈减弱。我们在草河口红松幼林地调查100株,其中健康树平均树高达3.59米,而病树平均高只有2.8米,并且病树常引起流脂,还可诱致次期害虫的蠹蚀,由于两者被害结果,可造成树木的死亡。 Korean pine blister rust has occurred in Caowei artificial forest in Liaoning Province. According to the survey of 59 years, the incidence of local forest area has reached over 20%. Although the necrotic spot can not be generated on the victim’s trunk, the growth of the victim’s tree has been weakened. We surveyed 500 grassland korean pine forests, of which the average tree health tree up to 3.59 meters, while the average high sick tree is only 2.8 meters, and sick trees often cause fat flow, but also lead to secondary pests eroded, as both The result of the killing can cause the death of trees.