Wear gardening gloves to protect your hands from poisonous mushrooms and fungus.
Turn the mushrooms over using a hand spade or shovel.
Add lime fertilizer to the mulch. Refer to the instructions of the fertilizer for the
correct dosage. The acidity of the lime kills mushrooms and fungus.
Spread the mulch mixture over the area that has mushroom growth. Once you cover the
mushrooms with mulch and lime, they can no longer receive the nutrients needed to grow and eventually they die off.
Continue to reapply mulch and lime fertilizer to cover the mushrooms until you have killed them.