• SYMPTOMS: Elliptical brown to grayish to tan lesions from 1 to 6 in. long. If humid, lesions may have gray-green centers due to spores on dead tissue.

  • TIME OF ATTACK: As early as silking, but more prevalent during later development stages.

  • CONDITIONS FAVORING: Wet, humid weather; heavy dew and fog. Can also have higher rate in continuous corn and reduced tillage.

  • MANAGEMENT: Resistant hybrids, tillage, crop rotation.