High temperatures and low humidity across the eastern and western Corn Belt this past week have increased the risks for field and combine fires as harvest ramps up across the country.
With the dry conditions, Ken Ferrie encourages everyone to have plans A and B in place, ready to implement if fire occurs.
“If your plan A is to call the fire department, remember, in rural America, most of our great volunteer firemen are running their own combines, so response time is a challenge,” he says.
While Ferrie believes you – or someone on your team – needs to call the fire department or 911 to get help, he says to consider making containment your Plan A.
In the case of a field fire, keep a tillage tool or spray tender nearby. “Have it in the field with you ready to go,” he advises.
Crops that are extremely dry coupled with even a bit of wind can set up a fast-moving scenario you need to snuff out quickly. Time is of the essence, as a fire can double in size within a mere minute or two.
“That situation won’t wait for you to go home, find a tractor, dig out a tillage tool or stick a hose in your spray tender and get to your field,” Ferrie says. “You won’t have the time to do that.”
A fully engulfed corn crib fire spread to nearby fields in Foosland this Friday.
— WICS ABC 20 (@wics_abc20) September 19, 2025
📸: Mackenzie Wichtnerhttps://t.co/XkFERxHVf6 pic.twitter.com/1sG1uVVlMW
In case of a combine fire, turn off the engine, get away from the machine, and phone for help.
Then, attack with fire extinguishers if it is safe to do so, advises Joshua Michel, Iowa State University field agronomist, in an online article.
“Try to fight from the ‘black,’ the area already burned,” Michel says. “Attacking a fire from areas with combustibles (e.g. dry corn stalks) is much riskier. Always stay upwind of a fire to minimize the risk of exposure from smoke, heat and possible flames.”
Keeping a shovel on the combine to throw dirt on a fire can also help.
Five Practical Steps To Be Ready For A Fire
Here are five additional things you can do to address a fire or prevent one from occurring this harvest:
1. As you combine fields, Ferrie says to keep in mind the wind direction. “Combine downwind, if possible, on windy days so if we have a combine fire it burns away from the crop,” he advises.
2. Have a daily maintenance plan for your equipment, including blowing off chaff and debris, properly lubricating chains/bearings, and cleaning up spills, advises Ohio State University Extension (OSU).
“The majority of harvester fires start in the engine compartment. Contributing factors for heat sources include faulty wiring, over-heated bearings, leaking fuel or hydraulic oil,” report Wayne Dellinger and Dee Jepsen at OSU, in this online article.
3. Have two ABC-rated fire extinguishers on hand. Keep a smaller 10-pound unit in the cab and a larger 20-pound extinguisher at ground level on the combine. Keeping an extra fire extinguisher on other pieces of machinery or trucks that are out in the field is also a good idea.
4. Invert the fire extinguisher once or twice during the season to ensure that machine vibrations don’t compact the powder inside.
5. Review your fire emergency plan with family and employees. As part of that, create a list with the 911 addresses for each of your field locations prior to harvest and have them easily accessible to family members and farm employees, Michel encourages. When a fire is called in with a 911 address, dispatch can more readily identify the incident location and relay this information to the fire department. This can save precious time as some fields may be in remote locations.
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