近几年来,山楂贮藏期间有大量烂果发生,为害较重。对此,我们自1982年开始做了一些调查,现将调查结果报道如下。发生为害情况:1982年10月26日,在本所地下室山楂贮藏窖内调查,在500个果实中褐腐病病果率1.6%。1983年,在山楂生长期调查,也发现有褐腐病发生。1983年贮藏中,从10月27日到12月14日,分期进行了发病调查,病果率达5.2～16.8%。发病部位多在伤口处,其中食心虫伤口发病率占60%以上。从调查中看出,本病在生育后期开始发生,在贮藏期中进一步发展,而且为害比较严重。症状:本病在果实上多从伤口部位发生,生成褐色病斑,逐渐扩大,致全果腐烂,最后在病果表面生成黄褐色菌丝团,稍微密,上生有孢子梗和分生孢子,与苹果、梨褐腐病的症 In recent years, a large number of rotten fruit occurs during the storage of hawthorn, causing serious damage. In this regard, we have done some surveys since 1982, and we now report the findings as follows. Occurrence of damage: October 26, 1982, in our basement hawthorn storage cellar survey, 500 fruits in the brown rot disease rate of 1.6%. In 1983, hawthorn growth period investigation, also found that brown rot occurred. During the storage in 1983, from October 27 to December 14, the incidence investigation was conducted in phases, with the rate of diseased fruits reaching 5.2 to 16.8%. The incidence of more wounds, including the incidence of heartworm wounds accounted for more than 60%. From the survey found that the disease began in the late reproductive period, the further development of the storage period, but also more serious damage. Symptoms: The disease occurred in the fruit more from the wound site, the formation of brown lesions, gradually expanding, resulting in decay of the whole fruit, and finally generated in the sick fruit surface yellow brown mycelium, slightly dense, spores and conidia conidia , With apple, pear brown rot disease