杉木炭疽病在我国杉木栽培地区普遍发生,对杉木幼林生长影响很大。病害主要在春季为害先年秋梢,使梢头针叶枯死或整个枝梢枯死。病原是毛盘孢属一种真菌(Colletotrichum sp.),曾进行反复的接种试验得到证明。在自然条件下,杉木病死针叶上产生许多分生孢子盘,其有性世代则未曾发现。 Cunninghamia lanceolata occurs widely in Chinese fir cultivation area and has a great impact on young Chinese fir plantation. Diseases mainly in the spring damage the first year of autumn shoots, so stubborn needles dead or the entire shoots withered. The pathogen is a fungus called Colletotrichum sp., Which has been demonstrated repeatedly by repeated inoculation tests. Under natural conditions, many conidiophores were produced on the needle of Chinese fir, and their sexual generation was not found.