What's eating my sinningia eumorpha?

Sinningia eumorpha is an indoor gesneriad with large velvety leaves and tuberous roots. Mealybugs are the primary pest, sheltering in leaf axils and around the tuber neck. Fungus gnats proliferate in its moist potting mix. Aphids target flower stalks, and vine weevil grubs occasionally damage the tuber during dormancy.

White fluffy colonies in leaf axils and around the crown; stunted growth and sticky honeydew Isopropyl alcohol swabs directly on colonies; neem oil foliar spray; repeat every 7–10 days until clear

Adults hover around soil; larvae feed on roots and organic matter in the potting mix Allow the top layer of mix to dry between waterings; yellow sticky traps; Bti soil drench for persistent infestations

Insects clustered on soft new growth and flower stalks; distorted buds and sticky deposit Insecticidal soap spray; remove by hand or with a water rinse; monitor new growth weekly

Grubs bore into the fleshy tuber during dormancy, causing rot and failure to re-sprout Nematode treatment applied to moist compost in autumn; inspect tuber carefully when repotting