What's eating my dendrobium 'berry oda'?

Dendrobium 'Berry Oda' is a compact hybrid most susceptible to mealybugs hiding in its leaf sheaths and nodes. Scale insects and thrips also attack the flowers and foliage. Inspect sheaths at every watering, remove pests with alcohol swabs, and treat flowers carefully with insecticidal soap to avoid bruising petals.

White cottony masses in leaf sheaths and cane nodes; sticky residue and stunted canes Swab infested areas with 70% isopropyl alcohol; drench the potting medium with diluted neem oil solution

Flat or rounded brown bumps on canes; yellowing and poor flowering Scrape off manually with an alcohol-dipped brush; apply horticultural oil spray, avoiding open flowers

Silver-streaked or distorted flowers and young leaves; tiny dark frass specks visible on petals Remove and dispose of affected flowers; apply spinosad or insecticidal soap spray to foliage and repeat after 7 days