Answer: Some mushrooms grow in decaying wood or tree roots under the soil surface, and others feed off grass roots, killing the turf. In either case, the only chemical-free way to control the mushrooms is to remove the mycelia (the "stem" of the mushroombody) from the soil. If rotting wood is the source of mushroom growth, remove it and 2" more of soil that surrounded the wood. If you have "fairy ring" fungi that grow in a circle, the fungus is feeding on your turf, and you'll have to remove the grass and 2" of surrounding soil as well. Excess moisture tends to encourage fairy rings, so water your lawn only as needed. Hope this helps!
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