An extension small grains specialist is concerned about disease pressure.
Jochum Wiersma with the University of Minnesota says tan spot set in during the cooler part of June.
“It is kind of our canary in the coal mine, and it showed up in the winter wheat about two weeks ago. Up to that point conditions probably had been ideal for tan spot.”
He tells Brownfield the risk of Fusarium Head Blight has waned with recent heat, but grain farmers still need to be on the lookout for it.