What's eating my phalaenopsis 'sogo yukidian'?

Phalaenopsis 'Sogo Yukidian' is a white moth orchid hybrid susceptible to the typical Phalaenopsis pests: mealybugs, scale, and spider mites. Its dense foliage can hide mealybug colonies. Regular inspection — especially under leaves and in axils — combined with good hygiene keeps this show-quality hybrid clean.

White cottony wax masses in leaf axils and on flower spikes; sticky residue, yellowing, and stunted growth Apply isopropyl alcohol with a cotton swab directly to colonies; follow with neem oil spray every 5–7 days for three to four weeks

Tan or brown shell-like bumps on leaves and stems; yellowing and premature leaf drop with heavy infestations Remove manually with a soft brush and alcohol; apply horticultural oil to smother remaining crawlers

Fine webbing on undersides of leaves; silver or bronze stippling reducing photosynthetic capacity Increase humidity; rinse leaves with lukewarm water; apply neem oil or insecticidal soap if stippling progresses