马铃薯是无性繁殖作物,在生产繁殖过程中极易感染病毒,并世代传递,病毒为害逐年加重,产量逐年下降。侵染马铃薯的主要病毒有马铃薯卷叶病毒(PLRV)、马铃薯Y病毒(PVY)、马铃薯X病毒(PVX)、马铃薯A病毒(PVA)、马铃薯S病毒(PVS)、马铃薯M病毒 Potato is a vegetative propagation of crops, in the process of production and propagation of highly susceptible to the virus, and passed from generation to generation, the virus damage increased year by year, the output declined year by year. The major viruses that invade potato are potato leafroll virus (PLRV), potato virus Y (PVY), potato virus X (PVX), potato A virus (PVA), potato S virus (PVS), potato M virus