西藏松柏科树种在西藏森林中占优势,是构成西藏森林的建群种。由于松柏科的一些树种受桑寄生科植物的侵害,林木的正常生长发育受到不同程度的影响,这类植物病害已引起教学和科研单位的重视。笔者在西藏农牧学院任教期间,对此进行了初步调查研究。 Tibet coniferous tree species in the dominant forest in Tibet, constitute the built-up species of forest in Tibet. Because some species of coniferous and cypress trees are infested by parasitic plants of Sangophyceae, the normal growth and development of trees are affected to varying degrees. Such plant diseases have drawn great attention from teaching and research institutes. During my teaching in Tibet Agriculture and Animal Husbandry College, I carried out a preliminary investigation.