Early blight
January 1, 1970
are brown lesions on stem and foot. On fruits, dark sunken, leathery lesions occur at the side of the stem. Life cycle and appearance of Early blight From [...] Alternaria species is the asexual stage. Conidia and mycelium overwinter in the soil and on crop residues and cause primary infection of the leaves. Survival [...] Typically, Alternaria causes early blight of potato and early blight of tomato, which presents itself as spots on leaves, petals and stems. These spots can