Early Blight of Potato: Symptoms and Management
Early blight, caused by the fungus Alternaria solani, is a common foliar disease affecting potato plants worldwide. Learn about its symptoms, disease cycle, and effective management strategies to safeguard potato production.
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Presentation Transcript
Fungal Disease Early blight of Potato by Dr. Subrata Giri
Introduction Early blight, caused by the fungus Alternaria solani, is a common and widespread foliar disease that affects potato plants. It poses a significant threat to potato crops worldwide and can cause substantial yield losses if left unmanaged. Early blight typically occurs during warm and humid conditions, making it prevalent in many potato-growing regions. Effective disease management strategies are essential to prevent and control early blight and safeguard potato production.
Symptoms Mosaic-like patterns on leaves (light and dark green irregular patches). Stunting and reduced plant growth. Curling and distortion of leaves. Necrosis, leading to necrotic streaks or spots. Yellowing and mottling of leaves. Fruit deformities in some infected crops. High contagion through plant contact and insect vectors.
