Pocket BotanistCheck these first
- Examine the undersides of the leaves with a magnifying glass.
- Look for fine webbing between the stems.
- Check for sticky residue on the leaves or the surface below the plant.
Likely causes
Spider mites
Most likelyHow to tell: You see fine webbing between the leaves or stems. The leaves may look stippled or pale.
What to do: Wipe the leaves down with a damp cloth to remove the webs. Spray the plant with insecticidal soap or neem oil once a week for 3 weeks.
Aphids
PossibleHow to tell: Tiny green or black insects cluster on the new growth or flower buds. They leave behind a sticky residue called honeydew.
What to do: Wash the aphids off with a gentle stream of water. If they persist, treat the plant with insecticidal soap or a mild dish soap solution.
When to worry
Small numbers of pests can be managed easily. Worry if the infestation is heavy and the plant is losing vigor or showing signs of stunted growth.
Stopping it coming back
Keep the plant healthy with proper light and water, and wipe the leaves occasionally to keep them dust free.
Not sure which one it is? Photograph your rosary pea.
This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Questions people ask
- Can I use household soap to kill pests?
- Use a mild, fragrance free dish soap diluted in water. Avoid harsh detergents that might damage the leaves.
- Should I isolate my plant?
- Yes, move the affected plant away from your other houseplants immediately to prevent the pests from spreading.
More problems with Rosary pea
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.