SYMPTOMS: Small, linear, rectangular-shaped lesions, tan to gray in color. Lesions begin on lower leaves and spread upward.

TIME OF ATTACK: Lesions generally appear near first tassel; disease spread continues through maturity.

CONDITIONS FAVORING: Cloudy days with humid or wet conditions; heavy dew, fog or light rain. Continuous corn and reduced tillage also favor this disease.

MANAGEMENT: Resistant hybrids, tillage, crop rotation, scouting and fungicide application if necessary