苹果黑星病是我国对内检疫对象之一,我省分布甚广,危害很重。我省对黑星病的研究始于1956年。1961～1965年东北农学院和省农业科学院,研究明确了其病菌分生孢子在我省不能越冬,初侵染源是落叶上产生的子囊孢子。本文主要报导1961～1965年省园艺所和双城县果树场等单位进行的病害流行规律调查、品种抗病力鉴定和药剂防治等试验。 Apple scab is one of the objects of domestic quarantine in our country, which is widely distributed in our province and endangered. Research on scab in our province began in 1956. From 1961 to 1965, Northeast Agricultural College and Provincial Academy of Agricultural Sciences, the study identified the pathogen conidia in the province can not wintering, the initial source of infection is the ascospores produced on the leaves. This article mainly reports the epidemiological investigation of disease, the identification of disease resistance and the prevention and control of pesticides conducted by the Provincial Horticultural Institute of 1961 ~ 1965 and the Fruit Farm of Shuangcheng County.