You may have moldy corn, but is it a real problem?

Ohio State University specialists say before abandoning a cornfield, make several determinations. They say ear mold may not be widespread within a field, and it may not be the variety that causes mycotoxins.

Before making a decision:

  1. Walk you fields, and examine multiple ears for signs of ear rot.
  2. If you have an ear rot, determine its variety and whether it produces mycotoxins.
  3. If the mold is a hazard, determine how widespread it in throughout the field.
  4. Examine 50 to 100 ears at multiple locations spread out throughout the field.
  5. In the case of aflatoxin, a black light test should be checked if it fluoresces.
  6. A positive black light test does not prove the toxins are present with the aflatoxin.

Here's a guide to help you identify molds in corn.

Read more on ear rots.