By Blake Jackson
Penn State Extension is launching a new survey and testing initiative aimed at helping organic corn producers better understand the risks associated with mycotoxins in grain and silage.
Mycotoxins are harmful compounds produced by fungi that cause ear rot diseases in corn, creating concerns for feed quality, livestock health, and farm profitability.
In Pennsylvania, Gibberella ear rot is one of the most common issues and is linked to toxins such as deoxynivalenol (DON), also called vomitoxin, and zearalenone.
Researchers also warn that modified or “hidden” toxins, including 3-acetyl DON and 15-acetyl DON, may not always appear in standard laboratory tests but can still affect feed safety and dairy herd performance.
The project will focus primarily on 100 certified organic grain and silage producers located in Berks, Centre, Chester, Dauphin, Juniata, Lancaster, Lebanon, Mifflin, Northumberland, Somerset, and Union counties. However, producers from other areas may also be considered after contacting the research team.
Farmers interested in participating are encouraged to contact the program coordinators or their local extension educator. Participants will receive instructions on submitting corn grain or silage samples, and researchers may also visit farms to collect samples directly from fields or storage facilities if requested.
Producers will also complete a short survey covering management practices such as hybrid selection, crop rotation, insect pressure, harvest timing, and storage methods.
Samples from the 2025 and 2026 crop years will undergo testing for major regulated mycotoxins as well as modified forms. Each participant will receive a written report with test results and management recommendations.
Researchers hope the project will build a long-term database to support future research and strengthen organic corn production across Pennsylvania.
For more information, contact Paul Esker at pde6@psu.edu, or 814-865-0680.
Photo Credit: gettyimages-fotokostic
Categories: Pennsylvania, Crops, Corn