Snowmold is most common to Kentucky Bluegrass and Fescues in regions where snow falls and sits on the lawn for extended periods of time.
The best prevention for snowmold is to aerate often. Improving water drainage, raking leaves off lawn's surface, and follow a fertilization schedule to help prevent over-fertilization in the late-fall can also help.
The most common fungicide used on Snowmold is benomyl.
