苹果轮纹病俗称粗皮病。该病在青岛地区发生严重,主栽品种除国光外,其余大部分感病。轮纹病除为害枝干外,尚能为害果实。此病在枝干上生疣,在果实上作轮纹状病斑,致使枝干枯死,果实腐烂,尤以贮藏期发病更甚,造成很大损失,严重地影响到树体发育、果品产量和质量的提高。为此,市? Apple rot disease known as dough disease. The disease is serious in Qingdao, the main cultivated species except Guoguang, the rest most of the disease. In addition to dendritic rot branching, but also harmful fruit. The disease warts on the branches of the wart, striated striped lesions on the fruit, resulting in dead branches, fruit decay, especially during the storage period even worse, causing great losses, seriously affecting the development of trees, fruit production And quality improvement. To this end, the city?