Garden Q&A: What's eating my roses and can it be stopped?

Nothing. What I mean is, there is nothing that you need to do as the damage you describe is a classic symptom of leafcutter bee activity. These are important pollinators and apart from creating some untidy-looking leaves, they aren’t doing any damage to the plant.
The overall vigour of your roses shouldn’t be affected.
These small bees are actually amazing to watch in action as they remove perfectly formed notches from the leaves and bring them away to make a nest.
CLIMATE & SUSTAINABILITY HUB
So, do nothing, your roses will still bloom, and you can relax in the knowledge that you are doing your bit for biodiversity.

- Got a gardening question for Peter Dowdall? Email gardenquestions@examiner.ie