Description: Lesions of northern corn leaf blight are large (1?6" long x ½?1" wide), cigar shaped and brown to tan in color. During periods of high humidity lesions may have grayish green centers due to formation of dark colored spores on dead tissue.

Location: NCLB can be found throughout Ohio.

Time of attack: Wet humid weather favors NCLB, especially during periods of heavy dew and fog. Symptoms may occur as early as silking, but are more prevalent during later stages of development.

Management:
· Resistant hybrids
· Crop rotation
· Till residues