随着人民生活水平的提高,对观赏植物(绿叶、花卉)的需求迅速增加。然而,观赏植物生产中的病虫害对产量和质量影响很大,特别是病毒病影响更重,产品出口时常因病害而被销毁,成为发展花卉生产的一大障碍。 笔者1989年对辽宁省有关公园和花圃进行调查,所调查的35科78种花卉中有30科65种表现出不同程度的病毒病症状,占调查总 With the improvement of people’s living standards, the demand for ornamental plants (green leaves, flowers) has rapidly increased. However, plant diseases and insect pests in ornamental plants have a great impact on yield and quality. In particular, the impact of the virus disease is more serious. Export of the products is often destroyed due to the disease, which has become a major obstacle to the development of flower production. In 1989, the author investigated the parks and flowerbeds in Liaoning Province. Among the 35 families and 78 species of flowers surveyed, 65 of 30 families and 65 species showed symptoms of viral diseases in varying degrees,