What's eating my calathea roseopicta 'corona'?

Calathea Roseopicta 'Corona' is vulnerable to spider mites and mealybugs — the two most common calathea pests. Its broad cream and green leaves show damage early, making detection easier. Fungus gnats are a secondary nuisance in overwatered pots. Consistent humidity and weekly inspections prevent most infestations.

Stippled, dull foliage with fine webbing beneath leaves; severe attacks cause leaf drop Raise humidity above 50%, rinse leaves in a lukewarm shower, apply neem oil or insecticidal soap every 5–7 days

Cottony white residue at petiole bases and in leaf axils; plant looks sticky and unhealthy Swab colonies with 70% isopropyl alcohol, spray with neem oil solution, isolate the plant until clear

Larvae feed on roots and fungal matter in the soil; adults are small dark flies hovering around the pot Allow the top inch of compost to dry before re-watering; use yellow sticky traps; apply Bti drench if infestation persists