Dealing with Persistent Fungal Growth from Dead Tree Roots in a Bermuda Lawn

Cause

Tough, rubbery, amorphous fungi emerging in the front yard only likely originate from rotting roots of the removed Liquid Amber (sweetgum) trees. The back yard lacks this history.

Management

• These are wood-decay fungi (possibly fairy ring organisms). They will persist until roots fully decompose.
• Excavation and soil replacement is the only complete cure but is laborious.
• Fungicide products (e.g., Bayer Elite 45) may suppress fruiting bodies temporarily.
• Expect grass thinning in affected zones as fungi compete for nutrients.

Monitor and treat symptomatically; complete eradication without excavation is unlikely.