What's eating my pleurothallis restrepioides?

Pleurothallis restrepioides, a miniature cool-growing orchid, faces its biggest indoor threat from spider mites in dry air. Mealybugs and scale can colonise the leaf bases and roots, while fungus gnats breed in persistently wet bark or sphagnum. High humidity, good airflow, and vigilant inspection prevent most pest problems.

Tiny pale flecks and silvery stippling on leaf surfaces; webbing between tightly packed leaves Boost humidity and ventilation; spray with insecticidal soap or neem oil covering all leaf surfaces; repeat weekly for three weeks.

White cottony deposits at leaf joints and root collars; honeydew attracts sooty mould Spot-treat with 70% isopropyl alcohol on a cotton swab; drench roots with diluted neem oil if root mealybugs are found.

Shell-like brown bumps on stems and leaf undersides; general weakening and leaf yellowing Remove physically with a soft brush, then apply horticultural oil spray; check weekly and repeat treatment as needed.

Root damage from larvae in wet medium; wilting despite sufficient watering Water with Bti solution; add beneficial nematodes; avoid overwatering the sphagnum or bark medium.