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Tar spot’s rapid spread west continues

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A crop specialist with BASF says weather can dictate where tar spot develops.

Gary Schmitz tells Brownfield the disease is becoming more prevalent in areas of the Western Corn Belt. “Where we have wetter weather, where the leaves will stay wet for more than 7 hours, is typically where we see the hot spots that show up.”

He says timely fungicide applications are critical for management. “Plan for that application in the VT to R1 timing.

Tar spot’s rapid spread west continues

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