Queen Palm Trunk Rot: Black Ooze and Frond Death

Serious Palm Decline

Two Queen Palms planted Nov 2007: one replaced for leaning, now the replacement leans; the original has black trunk, brown fronds, and non-sticky black/brown liquid leaking onto underplantings. This indicates trunk rot (Thielaviopsis or Phytophthora) or ganoderma butt rot—both fatal in palms.

Limited Options

• Check for insects: Aphids/scale can cause ooze—treat if found.
• If no insects: Fungal trunk rot—no cure. Palm cannot compartmentalize.
• Hazard assessment: Leaning + rot = failure risk. Consult certified arborist.
• Protect the other palm: Avoid wounding; ensure drainage; fertilize with palm-specific formula (Mn, Mg, K).

Why Palms Are Different

Single growing point (meristem) at crown—once trunk rots, no recovery. Unlike dicots, palms don't resprout from base.

Specialist diagnosis essential—email photos to local extension or palm specialist.