In Davis County, it is most likely call Necrotic Ring Spot (NRS) or frog eye. It is the most destructive disease of Kentucky bluegrass in Utah. Necrotic ringspot is particularly damaging to bluegrass because it is a perennial problem and the fungus attacks and kills the roots and crowns. Thus, recovery from a disease outbreak is very slow. Best practices include a program with slow-release, low-dose nitrogen fertilizers, fungicides, coupled with strict watering and maintenance practices. For more information or to sign up for the fungus lawn program, please call or text today!