The preparation provides long-term protection for the vegetative organs of plants against various pathogens, including downy mildew fungi. The duration of the protective period mainly depends on the growth rate of new young plant organs. It prevents the development of disease spores and fungal pathogens on the plant's surface. After application, the preparation effectively protects the upper parts of the plant’s leaves and fruits for 7-14 days, preventing the disease pathogen from entering the plant.