自新中国成立以来,我国果树生产有了很大发展,尤其苹果生产发展更快,无论栽培面积和果品产量,都居首位。在苹果生产迅速发展的同时,苹果病毒病害问题,日益引人注意。例如早已存在的苹果锈果病和花叶病,建国初期仅在局部地区零星发生,可是目前几乎已蔓延到所有苹果产区,个别果园,感病品种、发病株率相当高,已造成相当大的经济损失。除这两种病毒 Since the founding of New China, fruit production in our country has made great progress, especially in the rapid development of apple production, regardless of cultivated area and fruit production, ranking the first place. In the rapid development of apple production, the problem of apple virus disease is attracting more and more attention. For example, the already existing apple rust and mosaic disease, the early founding of the PRC only sporadic occurrence in some areas, but now almost spread to all apple producing areas, individual orchards, susceptible varieties, a relatively high incidence of strains has caused considerable The economic loss. In addition to these two viruses