Identifying and Treating Stubborn Orange Mold on Sundews

A Drosera adelae developed orange/brown wart-like structures with white bases on the soil and plant base. Sulfur and neem oil didn't help. The grower in Indiana had no bright windows in winter.

Identification

This matches a persistent yellow/orange fungus that attacks seedlings.

Eradication Protocol

1. Sterilize soil: Microwave moist soil mix in a plastic bowl until steaming; cool before use.
2. UV light: Use a reptile UV bulb over the plant during dormancy to kill spores.
3. Airflow: A fan helps blow spores away.
4. Repot: Move plant to sterilized soil; physically remove visible fungus (including infected leaves).
5. Fungicide: Continue sulfur/neem treatment per label.

This fungus is tough once established; persistence is key.