Mushrooms In Lawn - Knowledgebase Question

Los Angeles, CA
Avatar for kazuepoo
Question by kazuepoo
April 16, 1998
Is there anything that will eliminate the growth
of mushrooms in garden lawns? This has been occuring
for approx. (2) years. There is a live Jacqaranda
tree growing within 15 ft. and no other organic type
decomposition should be occuring.

Answer from NGA
April 16, 1998
You're correct to think that the mushrooms are a result of something decomposing underground. The mushrooms could be a result of dead tree roots, even from a healthy tree. More likely, though, the mushrooms are a result of poor nutrition and poor drainage in your lawn. Rake to remove the mushrooms, then put your lawn on a regular maintenance schedule. You may need to aerate the lawn to remove decomposing thatch and help with the compaction problem. Fertilize four times a year with a 3-1-2 ratio of nitrogen, phosphorous and potassium, applying one pound of actual nitrogen per 1,000 square feet of lawn per year. Be sure to water regularly so the lawn will grow thick enough to crowd out (or hide) the mushrooms.

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