Description: Ears with thick development of gray mold that develops from the base toward the tip is characteristic of Diplodia ear rot. The kernels appear stuck together with the thick layer of mold and the husks adhere to the ear.

Location: Diplodia ear rot is more common in the southern half of the state and appears to be associated with continuous corn and reduced tillage.

Time of attack: Warm, dry weather prior to silking followed by wet conditions following silking favors ear rot.

Management:
· Resistant hybrids
· Crop rotation
· Till residues