Favored by prolonged wet and cold soil conditions in the spring. Soil temperatures 50 F or lower favor seed rots. Fungicide seed treatment. Plant when soil conditions are warmer and drier, use the proper planting depth. Click on an image to display it in larger detail.
Infection is favored by extended warm, wet, humid weather.
Lesions may coalesce and blight entire leaves. Leaf blight may be followed by top kill and stalk rot. Leaf blight rarely causes large yield losses. Favored by cool to warm, wet, humid weather, continuous corn with reduced tillage. Cleanly plow under infected residue.