Check these first
- Inspect the undersides of new leaves for clusters of small insects.
- Look for sticky residue on the leaves known as honeydew.
- Check stems for small entry holes or wilting branches.
Likely causes
Aphid infestation
Most likelyHow to tell: You will see small, pear shaped insects clustered on new growth, often causing leaves to curl or look distorted.
What to do: Spray the plant with a strong stream of water from your hose to knock them off. If they persist, apply an insecticidal soap directly to the affected areas every 5 to 7 days until they are gone.
Elder borer
PossibleHow to tell: Branches may suddenly wilt or die back, and you might see small holes in the stems where larvae have tunneled inside.
What to do: Prune out any infested stems back to healthy wood. Dispose of the clippings away from your garden to prevent the larvae from spreading.
Find out what's wrong with your elder
The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
Small numbers of aphids are normal and usually managed by ladybugs. Worry only if the plant growth is severely stunted or if branches are dying back from borers.
Stopping it coming back
Keep your elderberry healthy with regular water and mulch to help it resist pest pressure. Avoid over fertilizing, as excess nitrogen creates soft growth that attracts aphids.
Elder: pests? Check yours with a photo
Every plant is a little different. Take a photo of your elder and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Will aphids kill my elderberry?
- Usually no, but they can weaken the plant and make it look messy. They rarely kill a mature, established shrub.
- Can I use neem oil for these pests?
- Yes, neem oil is effective against aphids, though it rarely reaches borer larvae inside the stems, where pruning out infested wood works better. Apply it in the evening to avoid harming beneficial pollinators.
Guides to these causes
More problems with Elder
- Why does my elderberry have spots on its leaves?
- Why are my elderberry leaves curling?
- Why is my elderberry plant drooping?
- Why are my elderberry leaves turning yellow?
- Why are my elderberry's leaf tips turning brown?
- Why is my elderberry dropping its leaves?
- Why is my elderberry not producing flowers?
- How do I know if my elderberry has root rot?
- Why is my Sambucus nigra looking so leggy?
This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.

