草莓经过多年的无性繁殖，致使病毒病发生日趋严重，品种的种性开始退化，产量和品质也逐年下降。带毒植株一般表现为植株个体矮化，叶片变小，小叶周边锯齿锐尖；心叶时有黄化；开花期提早，果实小，产量降低，匍匐茎抽生困难，抽发数量减少。病毒是１种非细胞形态的专性寄生 Strawberry after many years of asexual reproduction, resulting in the virus disease is more serious, species began to degenerate, yield and quality also declined year by year. In general, the infected plants showed dwarfing plants, smaller leaves, sharp serrations around the leaflets, yellowing in the heart leaves, earlier flowering stage, lower fruit yield, lower stolon pumpiness, and reduced number of aspiration. The virus is an obligate, non-cellular form of parasitism