What's eating my dwarf henckelia?

Henckelia pumila is a compact South Asian gesneriad grown indoors, closely related to Streptocarpus. Mealybugs are the most common pest, sheltering in the dense leaf bases and crown. Thrips can damage flower buds, and spider mites strike in low-humidity conditions. Check the crown closely at each watering, as the dwarf habit concentrates pest activity.

White fluffy wax in the crown and along leaf petioles; leaves yellow and the compact rosette may fail to produce new growth Spot-treat with isopropyl alcohol on a cotton swab; if heavily infested, take a healthy leaf cutting and discard the mother plant; neem oil spray as a follow-up

Silvery streaks or tiny dark specks on petals and young leaves; flowers distorted or scarred; buds may fail to open properly Remove and destroy affected flowers; use blue or yellow sticky traps; treat with spinosad-based insecticide or insecticidal soap; keep newly purchased plants quarantined for two weeks

Pale stippling on the upper leaf surface; fine webbing at leaf bases in severe cases; leaves desiccate and curl Increase humidity; rinse foliage with tepid water; apply neem oil or insecticidal soap to leaf undersides; repeat every 5-7 days until clear