Troubleshooting
Sunken Pleurothallis problems — and how to fix them
Sunken Pleurothallis (Pleurothallis immersa) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root desiccation on mounts
Cork mounts dry out rapidly in low-humidity rooms. Mist twice daily or move the mount to a humidity-controlled case to prevent root shrivelling.
Mealy bugs in ramicaul sheaths
The overlapping sheaths at ramicaul bases provide hiding spots for mealybugs. Inspect monthly; treat with isopropyl alcohol applied with a cotton swab or a systemic neem drench.
Bud blast
Flower buds abort when temperature spikes above 22 °C or humidity drops sharply. Keep the growing environment stable — even one hot day can abort an entire flush.
Prevent sunken pleurothallis problems before they start
Most sunken pleurothallis issues are care-mismatch, not bad luck. Dial in the basics:
Sunken Pleurothallis problems — FAQ
Why is my sunken pleurothallis root desiccation on mounts?
Cork mounts dry out rapidly in low-humidity rooms. Mist twice daily or move the mount to a humidity-controlled case to prevent root shrivelling.
Why is my sunken pleurothallis mealy bugs in ramicaul sheaths?
The overlapping sheaths at ramicaul bases provide hiding spots for mealybugs. Inspect monthly; treat with isopropyl alcohol applied with a cotton swab or a systemic neem drench.
Why is my sunken pleurothallis bud blast?
Flower buds abort when temperature spikes above 22 °C or humidity drops sharply. Keep the growing environment stable — even one hot day can abort an entire flush.