Pest identification
What's eating my ctenanthe setosa 'grey star'?
Spider mites
Signs: Fine stippling on leaves, silvery sheen, fine webbing on undersides in heavy infestations
Control: Raise humidity, mist regularly, wash leaves with water, apply insecticidal soap or neem oil spray weekly until clear
Mealybugs
Signs: White cottony clusters in leaf axils and along stems; leaves yellow and growth slows
Control: Dab clusters with rubbing alcohol on a cotton swab; follow with neem oil spray; repeat every 7–10 days
Scale insects
Signs: Brown or tan shell-like bumps on stems and leaf midribs; sticky honeydew on surfaces
Control: Scrape off with a soft toothbrush, treat with horticultural oil or neem; isolate plant from others
Keep ctenanthe setosa 'grey star' pest-free
Healthy plants resist pests best. Get the basics right:
- What eats calathea setosa — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common ctenanthe setosa 'grey star' problems & fixes
- Ctenanthe Setosa 'Grey Star' watering schedule
- Ctenanthe Setosa 'Grey Star' light requirements
- Full ctenanthe setosa 'grey star' care guide
Ctenanthe Setosa 'Grey Star' pests — FAQ
What is eating my ctenanthe setosa 'grey star'?
Ctenanthe 'Grey Star' is most troubled by spider mites, which thrive in dry indoor air and cause stippled, silvery foliage. Mealybugs and scale are also common on this tropical houseplant. Boost humidity, inspect leaf undersides regularly, and treat early with insecticidal soap or neem oil to keep infestations manageable.
How do I get rid of spider mites on ctenanthe setosa 'grey star'?
Fine stippling on leaves, silvery sheen, fine webbing on undersides in heavy infestations Raise humidity, mist regularly, wash leaves with water, apply insecticidal soap or neem oil spray weekly until clear
How do I get rid of mealybugs on ctenanthe setosa 'grey star'?
White cottony clusters in leaf axils and along stems; leaves yellow and growth slows Dab clusters with rubbing alcohol on a cotton swab; follow with neem oil spray; repeat every 7–10 days
How do I get rid of scale insects on ctenanthe setosa 'grey star'?
Brown or tan shell-like bumps on stems and leaf midribs; sticky honeydew on surfaces Scrape off with a soft toothbrush, treat with horticultural oil or neem; isolate plant from others