为了明确辽宁地区山楂病害的种类及发生为害情况,我们于七月中、下旬到辽阳、鞍山和营口等三市的山楂主产区,对山楂病害做了一次调查。现将调查结果报告于下。一、山楂花腐病发生为害情况:发生比较普遍,为害也较重。所调查的各山楂栽培老区几乎都有发生,以叶片及幼果受害最重。鞍山市郊区唐家坊公社末云山大队病叶 In order to clarify the types of hawthorn diseases in Liaoning Province and the occurrence of the damage, we conducted a survey on hawthorn diseases in the main producing areas of Hawthorn in the middle and late July in Liaoyang, Anshan and Yingkou. Now report the findings below. First, the hawthorn flower rot disease situation: the occurrence of more common, damage is also heavier. Almost all of the hawthorn cultivars surveyed have occurred in the old areas, with the most affected leaves and young fruit. Anshan City suburbs Tangfang commune end Yunshan brigade sick leaves