植物病毒病在过去一世纪中,由于对它的认识不足而放松了对它的控制,从而使许多重要的植物病毒病流传而成为世界性的病害,例如马铃薯的卷叶、X和Y病毒、甘蔗的花叶病毒、大豆的花叶病毒、芸豆的普通花叶病毒、烟草的花叶病毒、黄瓜花叶病毒及甜瓜花叶病毒等等。凡是植物中经济价值大、引种比较容易,而其种子和苗木可以传带病毒的类型,几乎都在上一个世纪己或更早的时期广泛地传播开来了。如所周知,植物病毒传入一个新区,给农业生产带来了无法 In the past century, plant virus disease has loosened its control over it due to its lack of knowledge. As a result, many important plant virus diseases have become epidemic and become worldwide diseases such as potato leaf curl, X and Y viruses, Sugarcane mosaic virus, soybean mosaic virus, kidney bean common mosaic virus, tobacco mosaic virus, cucumber mosaic virus and melon mosaic virus, and the like. The economic value of all plants, the introduction of relatively easy, and its seeds and seedlings can carry the virus, almost all of them in the century or more widely spread. As we all know, introduction of plant viruses into a new area has brought agricultural production intolerance