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Coprinus Snow Mold Fungicide

Coprinus psychrombidus Fungicide

Description of Coprinus Snow Mold (Coprinus psychrombidus):
Coprinus snow mold, aka cottony snow mold, appears at the point of snowmelt and leaves the turfgrass with a layer of white and wooly mycelium. This type of snow mold is a minor compared to a more devastating one like fusarium patch. The leaves become a brownish-black color and is caused by prolonged periods of deep snow.
According to the manufacturer approved labels: The following fungicide, applied at the listed application rates, will control Coprinus Snow Mold.
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Blanket Treatment
Application Interval:
Late Fall / Early Winter
21 days
Label Rate:
4 - 6 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 5333 - 8000 square feet
at a cost of
$6.62 - $9.92 per 1,000 sqft
For prevention, apply in fall before turf has stopped all growth activity. Apply second application in early spring when soil temperatures reach 55-60°F or when disease first appears. For curative action, apply when disease first appears in early spring and continue at 14 day intervals. Water treatment into active root zone.
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