Powdery Mildew Turns Turf White
Finally, powdery mildew is a common turfgrass disease in shade
areas. Powdery mildew is easy to identify; as grass appears whitish
in color. Powdery mildew develops primarily on Kentucky bluegrass
in the shade. Choose shade tolerant grasses and follow shade lawn
Written by Bruce Spangenberg, former Extension
Educator, Horticulture. University of Illinois Extension.