Mesostemic, broad-spectrum fungicide with mainly preventive activity. Particular characteristics are redistribution by superficial vapour movement and surface water, good rain-fastness, and residual activity. Active against fungi of all four classes - Ascomycetes, Deuteromycetes, Basidiomycetes and Oomycetes. Controls powdery mildew, leaf spot and fruit diseases in the early stages of fungal development (including spore germination, germ tube extension and appressorium formation) in field crops: cereals, soya beans, corn, rice, cotton, peanuts, sugar beet and sunflowers; horticultural crops: pome fruit, stone fruit, tropical fruit, bananas, grapes, soft fruit, and many vegetables, as well as ornamentals and turf.