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对北京市主要栽培的19种南方果树发生病害情况进行了系统调查,通过采集病害标本、症状观察和病原鉴定,确诊了11种病害。明确了枇杷拟盘多毛孢(Pestalotiopsis eriobotrifolia)灰斑病、盘长孢状刺盘孢(Colletotrichum gloeosporioides)炭疽病、拟茎点霉(Phoma mangiferae)叶斑病、茄病镰刀菌(Fusarium solani)根腐病、南方根结线虫(Meloidogyne incongnita)根结线虫病、成团泛菌(Pantoea agglomerans)鞘腐病及叶点霉(Phyllosticta musarum)黑星病等7种病害是北京京郊南方果树发生的主要病害。其中,枇杷拟盘多毛孢(Pestalotiopsis eriobotrifolia)灰斑病、盘长孢状刺盘孢(Colletotrichum gloeosporioides)炭疽病、南方根结线虫(Meloidogyne incongnita)根结线虫病及茄病镰刀菌(Fusarium solani)根腐病为害最为严重。
The diseases of 19 southern fruit trees mainly cultivated in Beijing were investigated systematically. Eleven kinds of diseases were confirmed by collecting the disease specimens, observing the symptoms and identifying the pathogen. Pestalotiopsis eriobotrifolia gray spot, Colletotrichum gloeosporioides anthracnose, Phoma mangiferae leaf spot, Fusarium solani root, Seven diseases of rot, Meloidogyne incongnita root knot nematode, Pantoea agglomerans sheath rot and Phyllosticta musarum scab were the fruit trees in the south of Beijing suburb. The main disease. Among them, Pestalotiopsis eriobotrifolia gray spot, Colletotrichum gloeosporioides anthracnose, Meloidogyne incongnita root knot nematode and Fusarium solani, Root rot is most harmful.