Stripe rust has been reported on older leaves of winter wheat all across central and southern Alberta. Frequent scouting and monitoring of stripe rust in winter wheat is strongly urged. Protection with a fungicide application may be required at flag leaf emergence if the disease begins to move into the upper canopy in susceptible winter wheat fields.
Watch this excellent video from Wisconsin courtesy of AGGronomyTV discussing scouting and spray decisions in winter.
Mike Harding is Plant Pathologist with Alberta Agriculture and Rural Development