Basal Stem Rot/Ganoderma Butt Rot of Palms
Trost Maintenance & Irrigation of Florida LLC
13900 CR 455, Suite 107
Clermont, FL 34711
Toll Free: 877-321-TROST
Phone: 407-574-7321
Symptoms: Wilt symptoms are caused by the fungus rotting the xylem and other trunk tissues (lignin and cellulose). The lower fronds turn dark green/gray, droop, and eventually die. The symptoms progress upwards to younger fronds until the entire crown collapses. Presence of large fruiting bodies (annual conks) usually close to the base of the stem is characteristic of this disease. However, the palm may die before the conks appear. The conk starts out as a 1 to 2 inch marshmallow-like structure and develops into a woody shelf fungus. These conks will disseminate spores into the air while they are still white and long before they turn reddish brown. Butt rot is a disease of mature palms.
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