Tar spot has already been discovered in corn crops in Nebraska.
Fourteen counties have reported detecting the disease so far this year. Agronomists say that its presence at this point in the growing season is not surprising.
It has also been found in neighboring states, including Iowa, Kansas, Missouri, and Indiana.
Nebraska Extension advises farmers to intensify scouting efforts in fields with a history of disease or those in higher risk, like pivot irrigation fields.
Fungicide use is not recommended at this time because research shows application for tar spot management is most effective between R2 and R3 growth stages.
Large rain events, like those recently in Nebraska, can create ideal conditions for tar spot and other diseases to take place, so scouting is essential.
Strong blending demand continues to support ethanol use even as production and exports fluctuate.
January 30, 2026 07:00 AM
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Eliza Petry joins the RFD News team with a strong connection to agriculture and a commitment to covering the people and issues that matter most to rural America.
January 29, 2026 01:31 PM
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Strong White House backing supports ethanol demand, but timing now hinges on Congress resolving procedural — at the same time as they push toward a spending bill to avert another federal government shutdown.
January 28, 2026 11:35 AM
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Corn and soybean exports continue to anchor weekly inspection totals, with China maintaining a visible role, while wheat and sorghum remain more dependent on regional and seasonal demand shifts.
January 27, 2026 03:08 PM
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Lewis Williamson of HTS Commodities joined us with an update on the historic winter storm impacts and his outlook on today’s ag markets.
January 27, 2026 02:39 PM
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Year-round E15 remains on the table, but procedural caution and competing regional interests pushed action into a slower, negotiated path.
January 26, 2026 01:33 PM
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