Orchid Blossom Stem Fungus vs. Mealybugs: Identify Before Treating

Two Possibilities

Mary's fluffy white growth on orchid flower stems: fungus or mealybugs. Both need different treatments.

Test with Alcohol

Dab with alcohol-soaked cotton swab. If pink insects appear = mealybugs. If just smears white = fungus.

Mealybug Treatment

• Pick off with alcohol swabs.
• Check all crevices, buds, pot, surroundings for eggs.
• Repeat weekly until 2 weeks clear.

Fungus Treatment

• Neem oil spray (3-in-1) or Consan 20 (best).
• Spray lightly, wipe with soaked cloth.
• Consan 20: dilute with distilled water per label.

Prevention

Increase air circulation, avoid wet flowers, inspect new plants.