山楂花腐病是我国山楂生产上的一种新病害,近几年来在辽宁省普遍大发生,流行年份比较重的病区可造成绝产。经辽宁省果树研究所与鞍山市农业局等有关单位协作研究,基本上摸清了山楂花腐病病原菌的生活史、危害症状及其侵染规律,并找出了防治本病的有效药剂、使用浓度和防治方法。今年已鉴定通过。 Hawthorn flower rot is a new disease on hawthorn production in our country. In recent years, it has been widely occurred in Liaoning Province. The prevalence of heavier ward can cause absolute loss. The Liaoning Province Fruit Research Institute and Anshan City Bureau of Agriculture and other relevant units of collaborative research, basically find out the life history of hawthorn rot pathogens, harmful to the symptoms and the law of infection, and to find out the effective prevention and treatment of the disease agents, Use concentration and control methods. This year has been identified by.