There are several kinds of heart rot that include white rot, brown.

Time is the best cure. Once the food source, the decaying tree roots and stump, has decomposed the fungus has no nutrient source and disappears.

In the meantime the decay fungus continues to feed on the tree roots breaking them down into valuable organic matter for the soil.

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The mushrooms (fruiting body of the fungus) appear during wet weather. Oct 09, Here is some information on managing mushroom growthSmall, soft mushrooms - mow or rake them and dispose in the compost pile or garbage. If pets or small children are a concern, sealed in the garbage is the safe way to go. Always assume mushrooms in the lawn/garden are poisonous when consumed. For tough or hard msuhrooms- dig and dispose as above. Sep 21, Just as the tree is the above-ground portion of a specific plant, the additional workings of that tree delve deeply into the soil.

When a tree is removed along with the stump, even if you've dug. A fungus grows by breaking down organic matter.

In a lawn, that organic material could be buried timber, a stump, or tree or shrub roots that remain underground after plants have been removed. Solution: In most cases, when the fungus has finished breaking down the buried organic matter, the fungus (and accompanying mushrooms) will disappear.

Remove the mushrooms from the old tree stump yourself by picking them off manually. Step 2 Scrape the tree stump with a garden tool, such as a trowel, to be sure you have removed all of the mushroom remnants. This will prevent them from growing back.