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苹果花腐病近年来已成为冷凉气候地区苹果的主要病害之一,发病时一般可减产30%左右,流行时可导致全园绝产,严重影响产量及果农的经济效益。发病原因:引发苹果花腐病的病原为子囊菌亚门真菌苹果链核盘菌,无性阶段为半知菌亚门苹果核盘菌。菌丝纠结形成黑褐色菌核,菌核萌发,产生子囊盘。无色、丛生的分生孢子梗可单生念珠状的分生孢子。柠檬形的大型分
In recent years, the apple flower rot has become one of the major diseases of apples in the cool climate area. Generally, the incidence of apple blossom can be reduced by about 30% at the time of occurrence. The epidemic can cause the whole plant to become absolutely dead and seriously affect the economic benefits of yield and fruit growers. The cause of the disease: the pathogen causing the apple flower rot is Ascomycota subfamily apple chain Sclerotinia, asexual stage for conidia subfamiliar Apple Sclerotinia. Mycelium tangled to form a dark brown sclerotia, sclerotia germination, ascus pancreas produced. Colorless, tufted conidiophores solitary rosary conidia. Large lemon-shaped points