果树病毒病用化学防治一般无效,随着生物技术的发展,已有了新的控制方法。果树病毒的特点果树常有相当严重的病毒病危害。据报道,苹果病毒有20多种,我国已鉴定出6种、如苹果的锈果病、花叶病、绿皱果病、茎痘病、茎沟糟病等,都是由专一的病毒引起的。但也有的病毒寄主范围相当广泛,如核果类的环斑病毒可 Fruit tree virus disease with chemical control generally ineffective, with the development of biotechnology, there has been a new control method. The characteristics of fruit trees virus Fruit trees often have quite serious viral disease hazards. It is reported that there are 20 kinds of apple virus, China has identified 6 kinds, such as apple rust fruit disease, mosaic disease, green wrinkle disease, stem pox disease, stems and dilapidations, etc., are by the specific virus caused. However, there are also a wide range of virus hosts, such as the ring-spot virus of the stonefruit genus