苹果褐斑病是我市苹果上主要病害之一,它主要危害苹果的叶片,导致苹果早期落叶。近年来,褐斑病在我市苹果树上逐年加重为害,去年发病的平均病叶率5%,病园率8%。通过本人多年的生产实践经验,并根据期病害发病的症状、发生的病原、传播途径、发病条件,总结出苹果褐斑病的防治技术。 Apple brown spot is one of the main diseases in our city apple, it is mainly harmful to the leaves of apple, leading to apple early deciduous. In recent years, brown spots in the apple trees in our city increased year after year damage, the average incidence of disease last year, 5% of the disease, disease Park rate of 8%. Through my years of practical experience in production, and according to the symptoms of disease onset, the occurrence of pathogens, transmission routes, the incidence of conditions, summed up the prevention and treatment of apple brown spots.