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.
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February 04, 2026 02:54 PM
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China-led demand continues to anchor soybean and sorghum exports despite weekly swings.
February 04, 2026 06:00 AM
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February 03, 2026 12:58 PM
Clearer 45Z rules favor U.S. oilseeds, but final RFS volumes remain critical to locking in demand.
February 03, 2026 12:39 PM
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Economists are also closely watching how policy decisions in Washington could influence markets moving forward. Analysts say deferred futures for corn, soybeans, and wheat suggest markets are operating near break-even levels, not at prices that would encourage expanded production.
February 02, 2026 12:13 PM
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Traders say that shift could eventually prompt the USDA to scale back soybean export projections, noting the outlook differs greatly for other grain commodities.
January 30, 2026 01:13 PM
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