Pest identification
What's eating my calathea picturata?
Spider mites
Signs: Silvery stippling across leaf surfaces dulls the ornamental patterning; webbing visible on leaf undersides
Control: Increase humidity; rinse leaves in the shower; apply neem oil or insecticidal soap every 5–7 days for 3–4 weeks until clear
Mealybugs
Signs: White woolly fluff lodged in leaf axils and near the soil surface; leaves yellow and growth slows
Control: Swab with isopropyl alcohol; spray all leaf surfaces with insecticidal soap; isolate and inspect weekly for 6 weeks
Thrips
Signs: Pale silvery rasping scars and tiny black frass on upper leaf surfaces; new leaves emerge scarred
Control: Remove badly damaged leaves; apply spinosad or neem oil spray; use blue sticky traps; repeat every 5 days for three cycles
Keep calathea picturata pest-free
Healthy plants resist pests best. Get the basics right:
Calathea Picturata pests — FAQ
What is eating my calathea picturata?
Calathea Picturata is most threatened by spider mites, with its large, silver-and-green leaves clearly showing the pale stippling that mite feeding produces. Mealybugs favour the tight leaf axils, and thrips rasp the decorative surfaces. Consistent high humidity of 60%+ deters the dry-air pests that most commonly trouble this species indoors.
How do I get rid of spider mites on calathea picturata?
Silvery stippling across leaf surfaces dulls the ornamental patterning; webbing visible on leaf undersides Increase humidity; rinse leaves in the shower; apply neem oil or insecticidal soap every 5–7 days for 3–4 weeks until clear
How do I get rid of mealybugs on calathea picturata?
White woolly fluff lodged in leaf axils and near the soil surface; leaves yellow and growth slows Swab with isopropyl alcohol; spray all leaf surfaces with insecticidal soap; isolate and inspect weekly for 6 weeks
How do I get rid of thrips on calathea picturata?
Pale silvery rasping scars and tiny black frass on upper leaf surfaces; new leaves emerge scarred Remove badly damaged leaves; apply spinosad or neem oil spray; use blue sticky traps; repeat every 5 days for three cycles