Drosera adelae Leaf Die-Back: Light, Airflow, and Fungus Gnats

Victor's D. adelae produces dewy new leaves that lose dew and die within days. Grown in a west window (some direct/bright indirect light), sitting in 1" water, alongside Mexican butterworts.

Drosera adelae

Jeff Dallas: Older leaves dying off while new growth adapts to brighter light is normal—D. adelae often has a "skirt" of dead leaves. Once a leaf loses dew, it won't regain it. New leaves will look better.

He also noted a fungus gnat infestation (visible in photo) and recommended BTI dunks in watering trays—safe for all plants, kills larvae in ~2 weeks.

Follow-up: Plant has been in location 2–3 months; new leaves still lose dew. Jeff suggested AC breeze or hot afternoon sun may be factors—D. adelae prefers morning sun. Also, fungus gnat larvae may be eating roots, causing decline.

Good Growing!

Jeff Dallas
Sarracenia Northwest
https://www.cobraplant.com