University of Maryland Extension

Mushrooms - Lawns

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Mushrooms on lawn 

Various species of mushrooms may appear in lawns after wet weather. A mushroom is the spore-bearing or fruiting structure of a fungus that grows in the soil. The fungus feeds on dead organic matter such as dead tree roots, buried logs, and stumps. These fungi may live for many years until the wood is completely destroyed. Mushrooms cause no harm to a lawn, although some species are very toxic if consumed. There is no practical or permanent way to eliminate mushrooms. If mushrooms must be removed, simply pick and remove them as they appear.

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