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Why Corn Acreage Varies From Year to Year

By Jonathan Eisenthal

As highlighted in the USDA’s annual Prospective Plantings Report, the number of acres planted to corn in Minnesota changes each year—typically a few hundred thousand above or below 8 million. So, what accounts for those changes?

There’s no one reason, farmers say, but rather a multitude of factors, such as crop and input prices and disease pressures.

In 2024, for example, Sibley County farmer Ellyn Oelfke, a member of the Minnesota Corn Growers Association (MCGA) Board of Directors, said her family decided to slightly decrease corn acres in favor of soybeans.

“Typically, we are on a 60-40 ratio of corn to soybeans, and this year we are going to be right at 50-50,” she said. “Where markets are at, it looks like a better opportunity to plant just a little more soybeans this year.”

In southern Minnesota, some farmers converted some of their corn acres to soybeans this year to keep western corn rootworm in check, according to Brandon Fast, who farms in Cottonwood County and runs a seed and chemical supply business. Fast is also a member of the Minnesota Corn Research & Promotion Council.

In the southern Red River Valley and around Otter Tail County and surrounding counties, some farmers skipped corn and soybeans on some acres altogether in favor of wheat, said University of Minnesota Extension Integrated Pest Management Specialist Bruce Potter. He said the goal there is to head off soybean cyst nematode,

Still, not all farmers are changing course. MCGA board members Rob Tate and John Swanson farm in Goodhue County in southeast Minnesota and Polk County in northwest Minnesota, respectively. They both said that, for themselves and their neighbors, there doesn’t appear to be any significant deviations from common crop rotations.

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Dicamba Returns for Georgia Farmers: What the New EPA Ruling Means for Cotton Growers

Video: Dicamba Returns for Georgia Farmers: What the New EPA Ruling Means for Cotton Growers

After being unavailable in 2024 due to registration issues, dicamba products are returning for Georgia farmers this growing season — but under strict new conditions.

In this report from Tifton, Extension Weed Specialist Stanley Culpepper explains the updated EPA ruling, including new application limits, mandatory training requirements, and the need for a restricted use pesticide license. Among the key changes: a cap of two ½-pound applications per year and the required use of an approved volatility reduction agent with every application.

For Georgia cotton producers, the ruling is significant. According to Taylor Sills with the Georgia Cotton Commission, the vast majority of cotton planted in the state carries the dicamba-tolerant trait — meaning farmers had been paying for technology they couldn’t use.

While environmental groups have expressed concerns over spray drift, Georgia growers have reduced off-target pesticide movement by more than 91% over the past decade. Still, this two-year registration period will come with increased scrutiny, making stewardship and compliance more important than ever.