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通过对云南红豆杉病原菌的分离培养和致病性研究，确定该病炭疽病病原菌为黑盘孢目盘长孢属菌．该病主要在７～１０月湿热条件下发生，经每半个月喷０．５％ＦｅＳＯ４和１∶１∶１００波尔多液各一次，可控制该菌的危害，使云南红豆杉保持旺盛的生长．
Through isolating, culturing and pathogenicity of pathogen of Taxus yunnanensis, it was confirmed that the pathogen of anthracnose pathogen of the disease was Phaeosporium aeruginosa. The disease occurs mainly in the hot and humid conditions from July to October, spraying 0.5% FeSO4 and 1: 1: 100 Bordeaux mixture once every half month can control the harm of the bacterium so as to keep the growth of the yew .