Grey rot - a fungal disease that usually infects the dying plant parts. Under favorable conditions of temperature and humidity strikes and plant health. Increasingly susceptible buds and flowers of plants in high humidity conditions. Characteristic feature of the disease is white, and then the ash-gray, fluffy coating on the affected parts of the plant. Buds turn brown and wither, the affected areas are softened.
On leaves and stems of the disease is manifested in the form of numerous small spots of different shape, brown or browning the edges of the leaves. Spots increased and covered a fluffy coating. Control measures. At the first sign of disease is removed sick leaves, buds and whole plants. Regular aeration and thinning, good lighting. Spraying with a solution topsina-M (0,1%), fundazolom (0,2%), copper-soap solution (0,2% copper sulphate and 2% soap) or other systemic fungicide. Repeated treatment is carried out in 10-12 days.