怎样区别苹果锈果病、锈病和果锈病答陕西读者许吉祥常见苹果病害中，苹果锈果病、锈病和果锈病是病名相似最易混淆的三种不同果实病害，某些科技报刊上常出现张冠李戴的现象，现就其病原、症状及防治方法加以介绍和比较。苹果锈果病现研究证实是由一种低分子量的类病毒Ｒ... How to distinguish apple from rust, rust and fruit rust Answer: Xu Jixiang, Shaanxi Reader Among the common apple diseases, apple rust, rust and fruit rust are the most easily confused diseases of three kinds of diseases. Some newspapers and magazines often appear Zhang Guan Li Dai’s phenomenon, is now on its pathogen, symptoms and prevention methods to be introduced and compared. Apple rust fruit disease is now confirmed by a low molecular weight class virus R ...