Pest identification
What's eating my black olive bonsai?
Mealybugs (Planococcus spp. / Dysmicoccus spp.)
Signs: White cottony wax masses in leaf axils, on bark, and around root collar; sap-feeding weakens branches and causes leaf yellowing and drop
Control: Treat visible colonies with 70% isopropyl alcohol on a cotton swab; follow up with a neem oil soil drench and foliar spray; repeat every 7–10 days
Soft Scale (Coccidae spp.)
Signs: Waxy brown bumps on stems; sticky honeydew attracts ants and fosters sooty mould, dimming photosynthesis
Control: Scrub with a soft brush dipped in diluted neem oil or horticultural oil; apply systemic neem drench; remove ant trails that protect scales from predators
Spider Mites (Tetranychus urticae)
Signs: Pale stippling and bronze discolouration on leaves; webbing under leaves during hot dry conditions indoors
Control: Increase humidity; wipe leaves with a damp cloth; spray thoroughly with insecticidal soap or miticide, especially on leaf undersides; repeat every 5 days
Keep black olive bonsai pest-free
Healthy plants resist pests best. Get the basics right:
Black Olive Bonsai pests — FAQ
What is eating my black olive bonsai?
Black Olive bonsai (Bucida buceras) is a tropical tree kept indoors or in frost-free climates, making it vulnerable to mealybugs, scale insects, and spider mites. Its dense canopy creates sheltered micro-environments where mealybugs thrive. Mealybugs are the most commonly reported pest on Bucida in cultivation.
How do I get rid of mealybugs (planococcus spp. / dysmicoccus spp.) on black olive bonsai?
White cottony wax masses in leaf axils, on bark, and around root collar; sap-feeding weakens branches and causes leaf yellowing and drop Treat visible colonies with 70% isopropyl alcohol on a cotton swab; follow up with a neem oil soil drench and foliar spray; repeat every 7–10 days
How do I get rid of soft scale (coccidae spp.) on black olive bonsai?
Waxy brown bumps on stems; sticky honeydew attracts ants and fosters sooty mould, dimming photosynthesis Scrub with a soft brush dipped in diluted neem oil or horticultural oil; apply systemic neem drench; remove ant trails that protect scales from predators
How do I get rid of spider mites (tetranychus urticae) on black olive bonsai?
Pale stippling and bronze discolouration on leaves; webbing under leaves during hot dry conditions indoors Increase humidity; wipe leaves with a damp cloth; spray thoroughly with insecticidal soap or miticide, especially on leaf undersides; repeat every 5 days