Some moderate to high risk of Fusarium head blight infection still exists for susceptible cultivars in the northern tier of counties of ND. Today”s conditions are very windy, which should dry out the top of the canopy, but checks of weather data at Langdon, Cavalier and Minot showed very high dew points in these locations at 1:00 pm on June 26. The forecasting site indicates that risk of Fusarium head blight will diminish in these areas as the week progresses. Stripe rust levels have increased in these areas, because of their relatively cooler temperatures and longer dew periods than much of the state.
–Marcia McMullen, Extension Plant Pathologist, North Dakota State University
For more details, go to the FHB Risk Assessment Tool at http://www.wheatscab.psu.edu/riskTool_2012.html