What kind of disease is Cymbidium mild mosaic?

CymbidiumCymbidium mild mosaic (Cymbidium mild mosaic) 1. Damage: distributed in Japan, mainly damagingCymbidium. 2. Symptoms: onCymbidiumit produces mosaic or mild mottling. 3. Pathogen: Cymbidium mild mosaic virus (CyMMV); the virus particles are spherical, 28-3Onm in diameter, and the virus particles are dispersed in the host cytoplasm or nucleus. 4. Disease characteristics: the virus is transmitted by sap. 5. Control methods: (1) For some valuable virus-freeorchids, they must be isolated fromorchidproduction bases forcultivation; (2) For horticultural operations such as division and repotting, fingers and tools must be disinfected again after planting each plant; (3) Roots must not be washed in the same container; running water should be used for root washing; (4) Media such as peat, moss and gravel used for growingorchidsshould be disinfected. Liu Zhongjian