What's eating my hoya 'sunrise'?

Hoya 'Sunrise' (a hybrid with colorful leaf flushing) is an indoor houseplant susceptible to the typical Hoya pest trio: mealybugs at nodes, spider mites in dry air, and scale on stems. Its tender new growth, which flushes red-orange, is particularly attractive to aphids and mealybugs during the active growing season.

White cottony wax at nodes and leaf axils; sluggish growth, yellowing leaves, and sticky honeydew drips Apply 70% isopropyl alcohol with a cotton swab to each colony; follow with a full neem oil spray; repeat weekly for 3 weeks

Fine yellow stippling across the leaf surface; webbing on undersides; color flushing on new leaves may mask early damage Increase humidity; rinse the plant in the shower; apply insecticidal soap or neem oil weekly until no signs remain

Brown or tan shell-like bumps on stems and leaf undersides; weakened growth and sticky deposits Scrape off with a toothbrush; wipe with 70% alcohol; apply horticultural oil spray every 2 weeks

Soft-bodied insects clustering on the red-flushed new growth and leaf undersides; distorted, curled new leaves Blast off with lukewarm water; apply insecticidal soap; inspect new growth weekly during spring and summer