What's eating my masdevallia angel frost?

Masdevallia 'Angel Frost', a popular cool-intermediate hybrid orchid, is most frequently attacked by spider mites, which proliferate when indoor temperatures exceed 24 °C (75 °F). Fungus gnats breed readily in damp moss media, and mealybugs hide in leaf sheaths. Keeping the plant cool and well-ventilated deters the vast majority of pests.

Silvery, stippled leaves and fine webbing under foliage; rapid leaf deterioration in warm rooms Increase humidity and air movement; reduce temperature; apply insecticidal soap or diluted neem oil weekly for three cycles

Larvae consume fine roots in wet sphagnum or peat mixes, causing wilting and poor new growth Allow media surface to dry between waterings; apply Bti biological drench; place yellow sticky traps nearby

White cottony deposits at leaf bases and in sheaths; honeydew attracting black sooty mould Dab colonies with 70% isopropyl alcohol on a swab; isolate plant; drench with diluted neem if root mealybugs suspected