Scott from Mineral Bluff, Ga. writes
Ferti-lome F Stop Lawn and Garden Fungicide RTS is not labeled to be used on mushrooms. We recommend you contact your local cooperative extension office and get the mushroom identified and the master gardener on staff should be able to tell you what will work to eliminate the type of mushroom you are dealing with
http://www.csrees.usda.gov/Extension/index.html
Answer last updated on: 02/18/2023