Pest identification
What's eating my vanda orchid?
Spider mites
Signs: Fine silvery stippling across leaf surfaces; webbing between leaves; foliage turns bronze in heavy infestations
Control: Mist foliage and roots daily in warm weather; apply neem oil or insecticidal soap spray; repeat every 5–7 days
Mealybugs
Signs: White cottony masses in leaf axils and among aerial roots; sticky honeydew and weakened growth
Control: Wipe off with a 70% isopropyl alcohol swab; spray with neem oil solution; inspect roots thoroughly
Scale insects
Signs: Shell-like brown bumps on stems and leaf undersides; yellow patches appear above each feeding site
Control: Scrape off manually; treat with horticultural oil; repeat at 3-week intervals until clear
Keep vanda orchid pest-free
Healthy plants resist pests best. Get the basics right:
Vanda Orchid pests — FAQ
What is eating my vanda orchid?
Vanda orchids, often grown bare-root in warm, bright conditions, are most troubled by spider mites, which thrive in hot, dry air. Mealybugs colonise the dense root systems and leaf axils, and scale insects are also common. Frequent overhead watering that mimics tropical rainfall helps deter mites.
How do I get rid of spider mites on vanda orchid?
Fine silvery stippling across leaf surfaces; webbing between leaves; foliage turns bronze in heavy infestations Mist foliage and roots daily in warm weather; apply neem oil or insecticidal soap spray; repeat every 5–7 days
How do I get rid of mealybugs on vanda orchid?
White cottony masses in leaf axils and among aerial roots; sticky honeydew and weakened growth Wipe off with a 70% isopropyl alcohol swab; spray with neem oil solution; inspect roots thoroughly
How do I get rid of scale insects on vanda orchid?
Shell-like brown bumps on stems and leaf undersides; yellow patches appear above each feeding site Scrape off manually; treat with horticultural oil; repeat at 3-week intervals until clear