Berberis sawfly is the only insect likely to defoliate berberis and Mahonia in the UK – help us track its spread.
Scope:
Berberis sawfly
Taxonomy:
Insect
Organisations:
Royal Horticultural Society
How to take part:
Sightings can be submitted all year
How to get involved
Submit your records via an online form: http://apps.rhs.org.uk/surveys/submitrecord.asp?type=1