snow mold

noun

variants or snow rot

1

a

: a disease of cereals caused by a fungus (Calonectria graminicola) and characterized by abundant superficial white mycelium when the snow melts

b

: a similar disease especially of turf grasses caused by a fungus of the genera Typhula, Sclerotium or Fusarium

2

: a fungus causing a snow mold

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