Aspergillus ear rot on corn

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Aspergillus ear rot

An olive-green mold on corn ears is diagnostic of Aspergillus ear rot. The fungal spores appear powdery and may disperse like dust when the husk is pulled back. Symptoms are mostly observed at the tip of the ear, but when the disease is severe the mold can be found all the way to the base. Other fungi that infect corn ears produce black or bluish spores, or pink or white molds, but the olive-green is unique to Aspergillus, and could indicate contamination by aflatoxin. For more information, please see this video: