What's eating my hoya micrantha?

Hoya micrantha, like most hoyas, is most troubled by mealybugs and spider mites indoors. Mealybugs hide at leaf axils and stem joints, draining sap and leaving cottony deposits. Spider mites thrive in dry indoor air. Inspect regularly and isolate new plants to prevent infestations spreading.

White cottony clusters at leaf axils and stem joints; sticky honeydew and sooty mold on leaves Dab colonies with a cotton swab dipped in 70% isopropyl alcohol; spray whole plant with neem oil solution; repeat weekly for 4 weeks

Fine stippling on leaves, faint webbing on undersides; leaves turn pale or bronzed in heavy infestations Increase humidity, rinse foliage with water; apply insecticidal soap or diluted neem oil weekly; keep away from heating vents

Brown or tan waxy bumps on stems and leaf undersides; yellowing, stunted growth, sticky residue Scrape off with a soft toothbrush; treat with 70% isopropyl alcohol on a swab; follow up with neem oil sprays