1984年以来,我们对咸阳市秦都区番茄病害进行了系统调查,明确了咸阳市保护地番茄病害种类及主要病害消长变化情况。1986年综合防治取得了显著效果。 1 保护地番茄的主要病害 1.1 番茄灰霉病据 1984—1986年调查,大田最高病果率为20.97—44.66％,发病早晚与定植时间关系密切,定植早发病早,在缓苗阶段即可见到病叶,4 Since 1984, we conducted a systematic investigation of tomato diseases in Qindu District of Xianyang City, clarifying the types of tomato diseases and the changes of the growth and decline of major diseases in protected areas of Xianyang City. In 1986, comprehensive prevention and treatment achieved remarkable results. 1 Protected Tomato Major Diseases 1.1 Botrytis cinerea According to the survey from 1984 to 1986, the highest incidence of field disease was 20.97-44.66%, the incidence of early and late colonization and close, early onset of colonization can be seen in the Huanmiao stage Sick leaves, 4