According to the National Fusarium Risk model, risk continues to remain high for susceptible varieties that are flowering in Eastern ND and for an extended area in northwest North Dakota. For moderately susceptible varieties, risk is low for most of the state Recent rain events and higher nighttime humidity will likely increase FHB risk on susceptible varieties for most of the state (exception being southwest ND). Continue to monitor the growth stage in small grain fields to determine the best time to apply a fungicide (if warranted). The best time to apply a fungicide in wheat is at early flowering and up to seven days after the start of flowering. In barley, the best time to apply is at full-head and up to seven days after full-head.

--Andrew Friskop, Cereal Extension Pathologist, NDSU Department of Plant Pathology

For more details, go to the FHB Risk assessment tool at http://www.wheatscab.psu.edu

For the latest news and updates from the U.S. Wheat & Barley Scab Initiative, go to https://www.scabusa.org