Pest identification
What's eating my stardust dendrobium?
Scale insects
Signs: Brown or white shell-like bumps on canes; leaves yellow and canes may shrivel
Control: Wipe canes with methylated spirits on a cotton pad; treat monthly with neem oil spray
Mealybugs
Signs: Fluffy white deposits in leaf axils and at pseudobulb bases; sticky honeydew on surrounding surfaces
Control: Apply isopropyl alcohol with a fine swab to each colony; follow with insecticidal soap spray every 7 days
Thrips
Signs: Petals show silver streaks or brown mottling; small dark frass spots on blooms
Control: Remove infested flowers; hang blue sticky traps near the plant; apply spinosad spray before bud opening
Keep stardust dendrobium pest-free
Healthy plants resist pests best. Get the basics right:
Stardust Dendrobium pests — FAQ
What is eating my stardust dendrobium?
Dendrobium 'Stardust' is a compact hybrid orchid primarily attacked by scale insects on its canes and mealybugs at leaf axils. Spider mites can be a problem in dry centrally heated rooms during winter. Thrips occasionally damage the star-shaped flowers. Good air movement and seasonal humidity management greatly reduce pest pressure on this hybrid.
How do I get rid of scale insects on stardust dendrobium?
Brown or white shell-like bumps on canes; leaves yellow and canes may shrivel Wipe canes with methylated spirits on a cotton pad; treat monthly with neem oil spray
How do I get rid of mealybugs on stardust dendrobium?
Fluffy white deposits in leaf axils and at pseudobulb bases; sticky honeydew on surrounding surfaces Apply isopropyl alcohol with a fine swab to each colony; follow with insecticidal soap spray every 7 days
How do I get rid of thrips on stardust dendrobium?
Petals show silver streaks or brown mottling; small dark frass spots on blooms Remove infested flowers; hang blue sticky traps near the plant; apply spinosad spray before bud opening