Top diseases in roses - Powdery Mildew
February 17, 2023
healthier and more resilient. Overall, the plants’ tolerance, and resistance to powdery mildew are enhanced. Talk to a Koppert consultant in your area to guide [...] Conidia are the main means of dispersal. They are dispersed by wind, as are the ascospores. In general, powdery mildew fungi are not very resistant to water [...] colonies, first and foremost on the upper side of the leaf. In severe epidemics in cereals, the ears may also be infected. In most crops, the white colonies