苹果炭疽病又叫苹果苦腐病,在我省苹果产区普遍发生.辽南地区以红玉品种受害最重,除苹果外,还可为害梨、葡萄、海棠、沙果、山楂、核桃等果树,造成果实腐烂.病害症状 苹果炭疽病主要为害果实,枝条很少感病.果实感病初期,果面上生成淡褐色圆形病斑,然后逐渐扩大、腐烂、凹陷,生有黑褐色轮纹,并还有同心轮纹状排列的黑色突起的 Apple anthracnose, also known as apple bitter rot, occurs in apple producing areas in our province .Liaonan area to ruby ​​varieties suffer the most, in addition to apples, but also for pears, grapes, Begonia, sand, hawthorn, walnuts, etc. Fruit trees, causing fruit decay. Disease symptoms Apple anthracnose is the main fruit damage, very few susceptible branches. Fruit early flu, the fruit surface to generate light brown round lesions, and then gradually expand, decay, depression, with dark brown round Pattern, and there are concentric rings arranged in black protrusions