Gardening Answers Knowledgebase
Knowledgebase record #565
Our backyard (which is flat and no pine trees) has hundreds of tiny mushrooms throughout the grass. Our front yard (which has a slight slope and one large pine tree) has many huge mushrooms. Otherwise, we have good looking grass. We have lived here for a very long time without ever seeing this problem. I know one answer is to "sweeten" the soil with lime. Should we do this now, in the fall, or at what time of year? Should we remove the mushrooms or let them be? Any other suggestions?
University of California, Davis Integrated Pest Management has guidelines on managing mushrooms in lawns. Here is an excerpt:
As for sweetening the soil with lime(making it less acidic), it is best to do a soil test before attempting to amend for soil pH. The City of Seattle's Natural Lawn Care information says that you would only need to "apply lime in the spring or fall if a soil test shows a calcium deficiency or acid soil conditions (pH less than 5)."
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June 24 2013 13:17:10