目前，苹果病毒病害已成为危及当前苹果生产的严重问题。据河北省农林科学院昌黎果树研究所调查，带毒病株树势衰弱，生产量减少４０％～ ６０％，产量下降１６％～６０％，品质变劣，抗逆性差。当前，苹果的病毒病害多达３０余种，危害苹果的病毒可以分为两大类：一类是潜隐性 At present, the apple virus disease has become a serious problem that endangers the current apple production. According to a survey conducted by Changli Fruit Research Institute of Hebei Academy of Agriculture and Forestry Sciences, the virulence of diseased plants is weakened. The yield is reduced by 40% -60% and the yield is reduced by 16% -60%. The quality is poor and the resistance is poor. At present, there are more than 30 kinds of diseases of apple viruses. The viruses that endanger the apple can be divided into two categories: one is latent