What's eating my odontoglossum crispum?

Odontoglossum crispum, the ruffled cloud-forest orchid, is most threatened by spider mites when grown too warm or dry. Aphids commonly attack its flower spikes, mealybugs hide in pseudobulb sheaths, and scale can cling to rhizomes. This cool-growing species is healthiest and most pest-resistant when kept below 18 °C at night.

Bronze or silvery speckling on leaves; webbing on undersides; papery, desiccated leaf margins Improve humidity and airflow, wipe leaves with a damp cloth, and spray insecticidal soap or predatory mite sachets every 5 days

Honeydew deposits and distorted flower buds on spikes; visible colonies of green or brown insects Blast with a jet of water, then spray with insecticidal soap or a pyrethrin-based product; repeat after 7 days

White cottony masses inside pseudobulb leaf sheaths and along rhizomes; sticky excretion and sooty mould Remove dry sheaths to expose colonies, treat with alcohol swabs, then apply neem oil spray weekly until clear