Pest identification
What's eating my petra croton?
Spider mites
Signs: Fine webbing on leaf undersides; yellow or bronze stippling that washes out the vivid leaf colors
Control: Increase humidity significantly; blast mites off with a shower; apply insecticidal soap or neem oil every 5 days for 4 weeks
Mealybugs
Signs: White woolly deposits at stem joints and where leaves meet the main stem; yellowing and leaf drop
Control: Spot-treat with rubbing alcohol; follow with neem oil spray on the whole plant; isolate from other houseplants
Scale insects
Signs: Hard brown bumps on thick stems; sticky honeydew and sooty mold on leaves below
Control: Scrape off with a toothbrush; wipe stems with isopropyl alcohol; treat with horticultural oil and repeat after 2 weeks
Whitefly
Signs: Tiny white insects fly up when foliage is disturbed; nymphs feed on undersides causing pale, yellowing patches
Control: Use yellow sticky traps; spray leaf undersides with insecticidal soap or pyrethrin-based spray weekly; remove heavily infested leaves
Keep petra croton pest-free
Healthy plants resist pests best. Get the basics right:
Petra Croton pests — FAQ
What is eating my petra croton?
Petra Croton's bold, multicolored foliage is a magnet for spider mites, which are the number-one indoor pest. Mealybugs and scale attack the thick stems, while whitefly can colonize the leaf undersides in bright, warm spots. Crotons are pest-sensitive — any stress from low humidity or temperature swings invites outbreaks quickly.
How do I get rid of spider mites on petra croton?
Fine webbing on leaf undersides; yellow or bronze stippling that washes out the vivid leaf colors Increase humidity significantly; blast mites off with a shower; apply insecticidal soap or neem oil every 5 days for 4 weeks
How do I get rid of mealybugs on petra croton?
White woolly deposits at stem joints and where leaves meet the main stem; yellowing and leaf drop Spot-treat with rubbing alcohol; follow with neem oil spray on the whole plant; isolate from other houseplants
How do I get rid of scale insects on petra croton?
Hard brown bumps on thick stems; sticky honeydew and sooty mold on leaves below Scrape off with a toothbrush; wipe stems with isopropyl alcohol; treat with horticultural oil and repeat after 2 weeks
How do I get rid of whitefly on petra croton?
Tiny white insects fly up when foliage is disturbed; nymphs feed on undersides causing pale, yellowing patches Use yellow sticky traps; spray leaf undersides with insecticidal soap or pyrethrin-based spray weekly; remove heavily infested leaves