Pocket Botanist
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Check these first
- Look closely at the tips of new growth for clusters of bugs.
- Check for sticky residue on the leaves.
- Look for holes or skeletonized patterns on the foliage.
Likely causes
Aphids
Most likelyHow to tell: You will see clusters of tiny green or pink insects on the buds and new shoots. They often leave behind a sticky substance called honeydew.
What to do: Blast them off with a strong stream of water from your garden hose. If they persist, apply insecticidal soap or neem oil every 5 to 7 days.
Rose Slugs
PossibleHow to tell: These are small green larvae that skeletonize the leaves, leaving behind a papery, see through appearance. You might see them on the undersides of leaves.
What to do: Pick them off by hand if you see them. You can also use a spinosad spray to manage the population.
When to worry
A few aphids are fine, but you should act if you see them covering the buds or causing the plant to stop growing. Large infestations can stunt the rose.
Stopping it coming back
Encourage beneficial insects like ladybugs to visit your garden. Avoid heavy nitrogen fertilizers that create too much soft, attractive growth.
Not sure which one it is? Photograph your rugosa rose.
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
- Are these bugs harmful?
- They weaken the plant by stealing nutrients and can spread viruses. It is best to remove them when you see them.
- Can I just wash them off?
- Yes, a sharp spray of water is often enough to knock them off and keep them from returning.
More problems with Rugosa Rose
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.