Michigan Confirms First Tar Spot Case of 2026

Agronomists are encouraging corn producers to continue scouting as disease pressure increases.

LANSING, Mich. (RFD News) — Michigan has confirmed its first case of tar spot for the 2026 growing season.

The fungal disease was identified this week in Jackson County, marking the state’s first confirmed case of the year.

Tar spot has now been reported in nine states this season, including Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Nebraska, Wisconsin and Michigan.

Agronomists say warm weather has pushed much of the corn crop toward pollination and are encouraging producers to continue scouting fields as disease pressure builds.

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Knoxville native Neal Burnette-Irwin is a graduate from MTSU where he majored in Journalism and Entertainment Studies. He works as a digital content producer with RFD News and is represented by multiple talent agencies in Nashville and Chicago.


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