Top diseases in roses - Powdery Mildew
February 17, 2023
fluffy 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 [...] resistance and the plant's immune system are strengthened and the crop becomes healthier and more resilient. Overall, the plants’ tolerance, and resistance [...] production, so the net effect of the RH is very small. Wind and draught in greenhouses promote disease. In greenhouses, the dispersal of spores over small distances