A plant disease expert says the very dry start of the growing season helped delay the first signs of tar spot in corn. Damon Smith with the University of Wisconsin tells Brownfield tar spot has now been reported in a few Wisconsin counties, and it’s likely just the beginning. “Now, we’re getting some rainy periods and we do know some of our most recent research and modeling efforts have shown that these wet-dry cycles tend to push it a bit harder, so I am expecting it to kind of ramp up.”
Smith says the late start for tar spot should lessen the risk of significant disease-related yield losses.
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