A good proportion of winter wheat in South Dakota is now in bloom (anthesis) or past bloom as of the week of June 17. The Fusarium head blight (FHB) predicted risk has not changed from last week (remains low) because of generally low relative humidity, which is the predictor of FHB. Scouting and watching the weather is encouraged until wheat is done flowering when the risk for scab considerably goes down. Most of the wheat fields scouted looked disease free especially the flag leaf and the leaf below flag leaf.
–Emmanuel Byamukama, Extension Plant Pathologist , South Dakota State University
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
To see past blog entries for this region: https://scabusa.org/user/9