Diseases
Crop diseases like Tar Spot, Goss’s Wilt, Sudden Death Syndrome or Frogeye leaf spot can have a big impact. Learn more about specific crop diseases in Iowa and different management practices to minimize their impact on crop yields.
Timely Insights on Diseases
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December 4, 2025Content Author
This year we are offering on-site registration for the Integrated Crop Management Conference! Join us on December 10-11 at the Meadows Events and Conference Center in Altoona, IA for two days jam-packed with networking, continuing education, and insight for 2026 and beyond.
Highlights of this year’s event include:
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November 12, 2025Content Author
In 2025, commercial foliar fungicides were evaluated across six Iowa State University research and demonstration farms to determine their effect on disease control and yield response on soybeans.
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October 28, 2025Authors
The soybean cyst nematode (SCN) is the most damaging pathogen of soybeans in Iowa and the entire US. The pathogen warrants more attention and management effort than often is given. SCN is easily detected and quantified from soil samples. An optimum time to collect soil samples from fields is in the fall, after the harvest of corn and soybeans is complete. This article explains how to collect and submit soil samples for SCN testing.
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October 6, 2025Authors
Growing resistant soybean varieties is critical to achieving and maintaining profitable soybean yields in fields infested with the soybean cyst nematode (SCN). A list of SCN-resistant soybean varieties in maturity groups 0-3 available for use in Iowa is compiled annually by ISU personnel. This year, there are 908 SCN-resistant soybean varieties from 35 brands offered for sale by 25 companies included in the list. This article contains information about the varieties in the updated list, including their genetic sources of resistance, plus a link to the list.
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September 18, 2025Content Author
