What's eating my pinstripe calathea?

Pinstripe Calathea is highly susceptible to spider mites, which thrive when humidity drops below 50% — exactly the opposite of what this plant needs. Mealybugs and thrips also target it. The delicate pink pinstripe markings make early mite stippling harder to see, so inspect leaf undersides at every watering.

Pale speckling or silvering on the dark green upper surface; fine webbing on leaf undersides; leaves lose their vivid stripe pattern Maintain humidity above 60% with a humidifier; shower the plant monthly; treat with neem oil or insecticidal soap every 5–7 days

Fluffy white residue tucked into leaf folds and axils; honeydew; leaves yellow and curl Dab colonies with isopropyl alcohol; apply neem oil spray paying attention to leaf folds; repeat weekly for 3–4 weeks

Silver streaking or scarring on leaf surfaces; tiny dark frass dots on undersides; leaves distort and may bronze at edges Remove heavily affected leaves; apply insecticidal soap or neem oil spray; use sticky yellow or blue traps; repeat every 5 days