Corn ear rot potential in Ohio corn
Certain hybrids are more susceptible to one or more ear rots than others. Examine ears to determine the presence of ear molds. Make a note of which ear rots are present and hybrids that are most affected. Make future hybrid choices based on this information. Growers are advised to follow certain harvest and storage guidelines to minimize problems associated with kernel rots and mycotoxin contamination:
1. Harvest at the correct moisture and adjust harvest equipment to minimize damage to kernels. Mold and mycotoxins tend to be higher in (machine or insect) damaged kernels.
2. Dry harvested grain to 15% moisture and below to prevent further mold development in storage.
3. Store dried grain at cool temperatures (36-44F) in clean, dry bins. Moderate to high temperatures are favorable for fungal growth and toxin production.
4. Periodically check grain for mold, insects, and temperature.
5. If mold is found, send a grain sample for a mycotoxin analysis to determine if toxins are present and at what level. For more on moldy grain, mycotoxins, and mycotoxins sampling and analysis visit the following websites: