Northern Leaf BlightCaused by: Exserohilum turcicum
Problem Category: Fungal Disease
Symptoms: In the beginning we will notice elliptical gray-green lesions on leaves. As the disease process this lesions become pale gray to tan color. Later stage the lesions looks dirty due to dark gray spores particularly under lower leaf surface. The disease can be easily identified in the field due to its long, narrow lesions which are unrestricted by veins.
Comments: The disease mainly spread through rain splash and wind.
Management: Follow proper tillage to reduce fungus inoculum from crop debris. Follow crop rotation with non host crop. Grow available resistant varieties.