红松是我国主要珍贵用材树种之一。解放以来延边造了大量红松人工林,现大多数都苍郁成林,但近几年来林内发现一种较为严重的真菌性病害——红松烂皮病。由于该病蔓延迅速,致使红松幼树大量枯梢或枯死,给大面积红松人工林造成很大威胁。为摸索该病的分布、病原、危害程度及发生规律,我们对这一地区红松人工林进行了调查。一、分布与危害红松烂皮病是一种弱寄生菌引起的侵染性病害。据记载,在芬兰、德国、挪威和瑞士该病曾造成枝条大量干枯。在国内,辽宁、山东、 Korean pine is one of the main precious timber species in our country. Since the liberation of Yanbian made a large number of Korean pine plantations, most of them are dense forests, but in recent years to find a more serious forest fungal disease - koraiensis disease. Due to the rapid spread of the disease, a large number of kiwifruit trees withered or withering, posing a great threat to large-scale Korean pine plantations. To explore the distribution of the disease, pathogen, the degree of harm and the occurrence of law, we conducted a survey of Korean pine plantations in this area. First, the distribution and hazards Kozoic skin disease is a kind of infectious diseases caused by weak parasites. It has been documented that the disease caused a great deal of dryness in Finland, Germany, Norway and Switzerland. In China, Liaoning, Shandong,