苹果轮纹病physalospora piricola Nose.对果实的为害是十分严重的。但每年为害果实的菌源为害部位、症状一直不清楚。我们的果园大部实行清耕,每年落叶落果全部清除干净,病源来自于落叶落果上的可能性不大。而且果实上轮纹病都在后期发病,说明发病中心病株和再侵染的可能性不大。为了彻底防治轮纹病必须弄清造成大 Apple rot disease physalospora piricola Nose. Damage to the fruit is very serious. But the annual damage to the source of fruit fungal parts, the symptoms have not been clear. Most of our orchards are practiced tillage. Every year, all the deciduous fruits are removed and the source of the disease is not likely to fall on the fallen leaves. And the fruit on the round grain disease in the late onset, indicating that the incidence of diseased plants and re-infection is unlikely. In order to completely prevent and treat rotundine, we must make clear that it is big