Typhula Blight
Typhula blight, also known as gray snow mold or speckled snow mold, is most severe under extended periods of deep snow that covers a wet turfgrass on unfrozen soil. The pathogen Typhula incarnata is most active when temperatures are 1-2 C. Grayish to straw colored circular patches ranging from 2.5 cm to 1 meter in diameter appear at snow melt. A grayish mycelium may be present infected turf, which gives it the grayish or speckled look.
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