The Q&A Archives: White Fungus On Bermuda Grass

Question: I have white fungus(?) growing on the top of my lawn, which is dense bermuda grass. It does not grow down through the grass to the ground. It forms little clumps, which crumble and are black and yellowish inside. We have tried decreasing our watering duration & frequency, but that hasn't worked. Do you know what this is, and how I can get rid of it?

Answer: Welcome to the wonderful world of slime molds! These goopy fungi (Myxomycetes) live on dead organic matter and thrive in moist conditions. You can rake it out and dump it in the trash; especially in the early stages before it spreads its spores. Increasing the air circulation and allowing the soil to dry out will help eliminate the stuff. To help stop the growth of slime mold, water early in the morning to allow the grass to dry before nightfall, and try raking any thatch on the soil surface to help expose it to air and sunlight. Slime molds are perfectly harmless--just not too pleasant to look at!

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