苹果轮纹病又称疣皮病或粗皮病,在各苹果主产区均有发生。我国最早于1928年在辽宁发现,随着易感轮纹病苹果品种在中国的大面积推广,已经成为我国当前苹果生产上最为严重的病害之一,常年烂果率可达20%~30%,多雨年份甚至60%~70%,使苹果产业遭受巨大的经济损失。发病原因:引发苹果轮纹病的病原为子囊菌亚门真菌梨生囊孢壳菌(图1),无性世代为半知菌亚门轮纹大茎点菌。梨生囊孢壳菌子座不发达,多形成一个腔室,分生孢子器扁圆形 Apple ring disease, also known as warts skin disease or skin disease, occurs in the main producing areas of the apple. As early as 1928 in Liaoning, China found that with the large-scale popularization of susceptible ringworm apple varieties in China, it has become one of the most serious diseases in apple production in our country. The annual rotten fruit rate can reach 20% to 30% , Rainy years or even 60% to 70%, the apple industry suffered huge economic losses. The cause of the disease: the pathogen causing apple rot disease is Ascomycota Mycena pear Mycoplasma hygroscopicus (Figure 1), asexual generation of penicillin subfamily Schizaphis major stem point bacteria. Pycnopa fascicularis is undeveloped, forming a multi-cavity, conidia oblate