Powdery mildew
General Powdery mildew is a fungal disease that is caused by many different species of fungi such as Erysiphe, Podosphaera, Oïdium, Leveillula. Damage [...] upper side of the leaf. In severe epidemics in cereals, the ears may also be infected. In pepper, the fluffy colonies occur mostly on the underside of [...] underside of the leaf. On the upper side, yellow spots are noticeable. In case of a severe epidemic, the fluffy colonies also appear on the upper side of the leaves