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Scout deep into fields for tar spot

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Scout deep into fields for tar spot

Jun 16, 2025
Jun 16, 2025

Tar spot in corn — Here are the black spots that identify tar spot. The spots cannot be rubbed off with a fingernail. Photo by University of Missouri.

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COLUMBIA, Mo. — Good scouting is the best way to identify tar spot in corn, says University of Missouri Extension state plant pathologist Mandy Bish.

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