近来,人们对于果树病毒病的关心日益强烈,如果对病毒的特点有所了解,防治问题是不难解决的.病毒病的防治,主要有三个方面:一是供应无病毒的接穗和苗木;二是病毒弱毒系的利用;三是防止病毒从国外传入.果树感染病毒的机率高而且多为复合侵染.因为果树是用嫁接、压条等方法进行无性繁殖,一旦感染了病毒,就会无限制的传播蔓延.在杂交育种中,为了尽快知道由亲本得 Recently, people are increasingly concerned about the disease of fruit trees virus, if you know about the characteristics of the virus, prevention and control problems is not difficult to solve.Viral disease prevention and control, there are three main aspects: First, the supply of virus-free scion and seedlings; Is the use of the virus, the Department of Weak Viruses; Third, to prevent the introduction of viruses from abroad. Fruit trees infected with high probability of infection and more for complex infection. Because the fruit trees are grafted, pressured and other methods of asexual reproduction, once infected with the virus, there will be no Limit the spread of the spread in breeding, in order to know as soon as possible from the parental