Cymbidium Black Spots: Fungicide Soak & Repot Protocol

Black spots at base + leaf spots = fungal infection, likely from old, soggy mix. Aggressive treatment needed.

Treatment Steps

1. Unpot, remove infected sheaths on pseudobulbs.
2. Rinse roots, trim stringy/soft ones.
3. Soak entire plant 10 min in Phyton 27 (copper sulfate) 1 tsp/gal.
4. Seal cuts with cinnamon.
5. Repot in fresh, DRY orchid mix (fungicide residue protects).
6. Water weekly with leftover fungicide solution until gone.

Why Dry Mix?

Wet mix + fresh wounds = rot risk. Copper residue on tissues prevents reinfection.