What's eating my hoya archboldiana?

Hoya archboldiana is a rare large-flowered hoya grown indoors by collectors. As a tropical epiphyte cultivated in warm, indoor conditions, it is most vulnerable to mealybugs and spider mites. Its large, leathery leaves can host scale on the undersides. Consistent monitoring is key given that replacement plants are hard to source.

White woolly deposits in leaf axils and along stems; honeydew secretions and black sooty mold develop Treat each colony with isopropyl alcohol on a swab; apply neem oil spray weekly; maintain strict quarantine protocols

Fine bronze stippling across large leaf surfaces; webbing on undersides in dry conditions; leaves dull and drop Wipe both leaf sides with a damp cloth; apply insecticidal soap or neem solution; boost ambient humidity

Flat or raised bumps attached to stems and leaf undersides; foliage yellows and large leaves may scar Scrape off manually; swab with rubbing alcohol; apply horticultural oil on a fortnightly schedule until gone