近年来,我国农作物、果树、蔬菜等多种植物的病毒病问题,日益显得突出,有些病毒病害已给生产和科研工作造成很大损失。果树为多年生植物,以无性繁殖为其特点,果树病毒对果树栽培和科研工作的威胁更大。 In recent years, the problems of virus diseases of many plants such as crops, fruit trees and vegetables in our country have become increasingly prominent. Some virus diseases have caused great losses in production and scientific research. Fruit trees are perennials, characterized by asexual reproduction. Fruit tree viruses pose a greater threat to fruit tree cultivation and scientific research.