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.
Louisiana State University Professor Shelly Pate Kerns says a late freeze forced widespread replanting of some crops across the state.
April 21, 2026 03:37 PM
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Lewis Williamson with HTS Commodities joined us to discuss the latest crop progress report and how market uncertainty and input costs are shaping planting decisions this spring.
April 21, 2026 12:00 PM
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Summer fuel rules cap ethanol demand and limit corn upside.
April 21, 2026 07:00 AM
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Jarrod Hardke with the University of Arkansas break down extreme drought conditions, shifting planting decisions, and the impact of rising input costs on Arkansas agriculture this season.
April 20, 2026 04:32 PM
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Louisiana farmers say high water levels routinely threaten crops, highlighting the need for critical infrastructure and sustainability efforts in the Bayou.
April 20, 2026 03:37 PM
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Tight supply and logistics issues may raise input costs.
April 20, 2026 08:00 AM
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