十余年前在葡萄主要产地山梨县等地发生了果实糖分大幅度降低的病毒病,无论生食或 造均不适用,原因不明,只好砍伐。笔者最近发现与两种病毒有关,一为葡萄无味果病毒Grapeuine ajinashike virus(GAV)-为葡萄卷叶病毒Grapeuine le-atroll Virus(GLRV)。 此病毒可引起葡萄卷叶病。 More than ten years ago in Yamanashi Prefecture, the main producing area of ​​the grapevine, there was a virus disease in which the sugar content in the fruit dropped drastically. It was not clear whether it was eaten raw or made for unknown reasons and had to be cut down. The author has recently found that it is related to two viruses, Grapeuine ajinashike virus (GAV) - Grapeuine le-atroll Virus (GLRV). This virus can cause grape leaf curl.