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Q.garden lawns

Zone harlow, essex | crawford potter added on December 20, 2016 | Answered

I have noticed just recently that there is a white furry hairy fungus covering in patches on both lawns. It seems to be growing on the grass itself. It looks like spider webs but I actually thought when I first saw it a week ago that it was frost that had not thawed. I have since mowed both lawns and am considering whether I should feed the lawn with a weed, feed and moss killer.

Alisma

Certified GKH Gardening Expert

Answered on December 20, 2016

Dollar spot fungus is a possibility. This disease starts out as fuzzy white growth on lawns, and later can kill grass in spots:
http://plantscience.psu.edu/research/centers/turf/extension/factsheets/managing-diseases/dollar-spot
http://ohioline.osu.edu/factsheet/HYG-3075

Snow mold looks similar, but it usually appears after snow melts:
http://www.extension.umn.edu/garden/yard-garden/lawns/snow-molds-in-lawns/
https://www.ipm.iastate.edu/ipm/hortnews/2010/3-31/snowmold.html

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