Gray snow mold appears on lawns when snow melts in spring and patches of straw colored turf a few inches to a few feet in diameter can be seen. The orange sclerotia is the key to identification. As snow accumulates throughout the winter season on the lawn, it insulates the turf. If the soil did not have a chance to freeze prior to accumulated snow, the chances of your lawn being attacked by this disease are greater.
Image By: William M. Brown Jr., Bugwood.org
If the turf is not fully dormant or left long (where the blades may mat down), gray snow mold may form. This is rarely a serious disease though it can be unsightly when you expect your green lawn to greet you as spring arrives - all you see are discolored splotches throughout the lawn.
To help keep your lawn from experiencing this, ensure that you cut the grass on the lowest setting for the last cut of the season (and on the first cut to promote growth). This will keep the blades of the grass from matting down and remaining wet. Also, if you notice gray snow mold in early spring, simply gently rake out the straw colored grass so your lawn can regenerate quicker.
Fungicides are not usually warranted, though if you need a technician to come out and review the condition of your lawn, feel free to contact us at 419-536-4344.