各种阔叶树从种子发芽之后到苗木出圃期间一般都有炭疽病发生。定植后的幼树也有炭疽病为害,但被害最严重的通常是在种子发芽后的2—3个月内。炭疽病的英文名叫Anthracnose,该病在叶、嫩茎和枝条上形成黑色水渍状的病斑,不久水渍状的病斑交干,变成稍隆起的痂状黑褐色的小病斑。炭疽病是由子囊菌的小丛壳属(Glom-erella有性世代)或半知菌的刺盘孢属(C-olletotrichum 无性世代)这一类真菌引起的病害的总称。以往由于寄主植物的不同,分别称之为不同的病害,这种病害的名称大约达1000种之多,根据各种植物上病原菌的致病性(寄主范围)与病原形态的研究,最近对寄主范围很广的兼性寄生菌、寄主范围较窄的专性寄生菌各自归纳若干种。炭疽菌从半知菌(无性世代)分生孢子 A variety of broad-leaved trees from the germination of the seedlings to nurseries during the nursery generally occur. The young trees after planting also have anthracnose damage, but the most serious victims are usually 2-3 months after germination. English anthracnose called Anthracnose, the disease in the leaves, tender stems and branches of the formation of black water stain-like lesions, soon after the water-like lesions pay off, into a slightly raised scab-like dark brown lesion . Anthrax is a collective term for diseases caused by fungi of the genus Clostridium (Glom-erella sex) or Candida (C-olletotrichum clonal generation) of Aspergillus. In the past due to the different host plants, respectively, called different diseases, the name of the disease is about as many as 1000 species, according to a variety of pathogenic bacteria on the pathogenicity (host range) and pathogenic morphology of the recent study on the host A wide range of facultative parasites, the host narrow range of obligate parasites were summarized in several. Anthrax from conidia (asexual) conidia