By Scout Nelson
Unpredictable weather and increased disease pressure during the 2025 growing season may cause unexpected challenges at harvest. Corn growers should plan ahead to minimize losses and protect grain quality.
Rapid Senescence and Drydown
Corn typically reaches physiological maturity with about 30 percent moisture. Under hot and windy conditions, drying can exceed one percentage point per day. Diseases such as southern rust and tar spot, along with storm damage, can accelerate plant death and early black layer formation. Monitor grain moisture carefully, especially if chopping for silage or harvesting high-moisture corn for feed.
Weaker Cornstalks
Stressful conditions increase stalk rot diseases, leaving stalks more likely to lodge. Use push or pinch tests to check stalk strength. If more than 10 percent of plants fail, consider harvesting those fields earlier.
Storms and Hail Damage
Mid-August storms caused lodging and bruising, shortening grain fill and raising disease risk. Lodged plants still fill ears but often produce lighter kernels. Harvest these fields first, at moisture above 17 percent, and adjust combine travel direction to reduce ear loss.
Smaller Kernels and Grain Quality
Diseases and hail reduce photosynthesis, leading to smaller, more brittle kernels. Adjust combine settings and harvest at higher moisture to avoid kernel breakage. Keep diseased grain separate, dry to 14 percent, and cool quickly to limit mold growth.
Dust and Safety Precautions
Fungal spores can create dusty air, which may irritate lungs. Wear masks or respirators and check air filters on equipment. Keep fire extinguishers ready, take breaks, and prioritize mental and physical health.
For emotional support or disaster assistance, call the Nebraska Rural Response Hotline at 800-464-0258. Farm Rescue provides volunteer help to complete harvest when illness or disaster strikes. Fire safety tips are available through CropWatch.
Photo Credit:gettyimages-chrisboswell
Categories: Nebraska, Crops, Corn, Weather