近年来,随着地被菊在北方园林栽培中的大量应用,其栽培面积也在不断扩大,而北方夏季降雨量较多,一些地区由于栽培管理措施不当,从而使锈病等病害在地被菊上的危害越来越严重,造成了大面积缺苗空地现象,严重影响了园林景观的观赏效果。危害症状锈病主要危害地被菊的叶片和茎干,危害初期在叶片上出现浅黄色小斑点,同时在叶背面相对应的部位也生出 In recent years, with the extensive application of ground-daisy in the cultivation of northern gardens, its cultivated area is also constantly expanding while there is more rainfall in summer in northern China. In some areas, due to improper cultivation and management measures, More and more serious damage, resulting in a large area of ​​vacant Vacant phenomenon, seriously affecting the landscape ornamental effect. Hazard symptoms The main damage to the leaves of chrysanthemum leaves and stems, endangering the early emergence of light yellow spots on the leaves, at the same time in the leaves of the corresponding parts of the back