Christmas Palm Yellowing and Frond Drop: Lethal Yellowing?

20 Veitchia merrillii (Christmas palms) in St. Lucia show premature lower frond drop and yellow spotting despite heavy fertilization. Symptoms match lethal yellowing—a fatal phytoplasma disease.

Lethal Yellowing Progression

1. Fruit drop ("shelling").
2. Flower stalk blackening.
3. Fronds yellow from bottom up.
4. Spear leaf collapses → bud death.
5. Crown falls → "telephone pole" trunk.

Death in 3–6 months. No cure.

Action

• Confirm with local agriculture department (lab test).
• If positive: remove and destroy infected palms immediately.
• Replant with resistant species (e.g., Veitchia arecina, some Dypsis).
• Control planthopper vectors (Myndus crudus) if confirmed.