Cat Palm Yellow Leaves: Spider Mites or Repotting Stress?

Cat Palm Yellow Leaves: Spider Mites or Repotting Stress?

Repotted your cat palm (Chamaedorea cataractarum) and now leaves are yellowing? The culprit is likely spider mites, not transplant shock.

Diagnose Spider Mites

• Shine a bright light on the undersides of yellow fronds.
• Look for fine webbing—especially where leaflets meet the rachis.

Treatment Protocol

1. Shower the plant: Wash all leaf surfaces (front and back) with a handheld sprayer. Minimize soil wetting.
2. Empty the saucer immediately.
3. Remove all yellow fronds—they won't recover.
4. Weekly alcohol spray: Mist entire plant with 70% isopropyl alcohol in a spray bottle for 4 weeks to kill hatching eggs.
5. Alternative: Insecticidal soap or 1 tsp dish soap per pint of water.

Prevent Recurrence

Spider mites attack stressed, dry plants. Increase humidity with a pebble tray, avoid letting soil dry completely, and inspect weekly.

Expert advice from Darlene, houseplant specialist.