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梨炭疽病又名苦腐病,是具有潜伏侵染特性的真菌病害,在各梨产区普遍发生,感病后大多在成熟期发病,引起果实腐烂和早落,采后随果实生活力降低而逐渐发病;在运输、贮藏期间可继续扩大甚至造成大量果实腐烂,对产量影响较大。梨炭疽病的病原属半知菌亚门真菌盘长孢状刺盘孢,有性阶段为围小丛壳。其无色分生孢子梗单胞栅状排列(图1),椭圆形或长椭圆形的分生孢子
Pear anthrax, also known as bitter rot, is a fungal disease with latent infectivity and occurs generally in each pear producing area. Most of the infected pear pathogens are at maturity, causing decay and plucking of fruits. After harvest, the vitality of fruits is reduced And gradually onset; during transport and storage can continue to expand or even cause a lot of fruit decay, a greater impact on the yield. The pathogen of pear anthracnose is a conidia of Alternaria fungus, and the sexual stage is surrounded by small clumps. Its colorless conidiophore cell grid arrangement (Figure 1), oval or oblong conidia