Early blight
occur at the side of the stem. Life cycle and appearance of Early blight From the primary infection of leaves, Alternaria solani can spread to the flowers [...] spores surviving in the soil are the main source of infection. Especially wheat and barley reduce the number of surviving conidia in the soil. Use resistant [...] infection of the leaves. Survival can be several years, up to eight years for several Alternaria spp. Typically, Alternaria causes early blight of potato