A hard, shelf-shaped growth on the lower trunk of a palm is one of the most serious warning signs a Florida palm can show.
That growth is a conk from Ganoderma butt rot, a fungal disease that decays the inside of the trunk near the ground. It affects queen palms, sabal palms, Canary Island date palms, and many others common in Dunedin and Clearwater yards. By the time conks appear, internal decay is usually well advanced.
There is no cure, and an infected palm can snap at the base without warning. Removing it promptly protects the home, vehicles, and people nearby. The fungus stays in the soil, so replanting a palm in the same spot is not recommended.
Our ISA Certified Arborists can confirm whether a growth is Ganoderma and help you plan safe removal and a better replacement choice.
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An authentic close-up of a Ganoderma conk on the base of a palm trunk from a local job, plus a wider shot of the palm. Real photos outperform stock disease images.
Canva text suggestion: "A Conk at the Base Means Trouble" or "Know the Signs of Butt Rot"