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Brown specks scattered through the leaf surface is a characteristic symptom of gray leaf spot. These specks enlarge become necrotic and breaks off from  the center. necrotic spots can also merge causing collapse of large areas of the leaf tissue.
Brown specks scattered through the leaf surface is a characteristic symptom of gray leaf spot. These specks enlarge become necrotic and breaks off from the center. necrotic spots can also merge causing collapse of large areas of the leaf tissue.
Underside of a leaf with gray leaf spot. Severe necrosis can be noticed throughout the underside as well as to the margin of the leaves. This can cause severe defoliation. When the infection becomes severe leaves of infected plants drops from the plant.
Underside of a leaf with gray leaf spot. Severe necrosis can be noticed throughout the underside as well as to the margin of the leaves. This can cause severe defoliation. When the infection becomes severe leaves of infected plants drops from the plant.
Conidiophores (conidium bearing hyphae or filament) and conidia (spores) of Stemphylium spp. Diseased transplants is a major mode of dissemination of the disease. Conidia can survive in plant debris and can easily spread by wind/air-movement.
Conidiophores (conidium bearing hyphae or filament) and conidia (spores) of Stemphylium spp. Diseased transplants is a major mode of dissemination of the disease. Conidia can survive in plant debris and can easily spread by wind/air-movement.

GRAY LEAF SPOT

Fungal causal agent/s: Stemphylium spp. including solani, lycopersici, and botrysorum f. sp. lycopersici

Tomato diseases