David Williams

Forest Research

Projects

Project Lead: Katrina Dainton
Birch is an important component of Scotland’s broadleaved woodlands and as individual trees in Scottish landscapes – with high aesthetic and biodiversity associated values as well as a range of uses for the wood. Birch, because of pioneering qualities and rapid early growth, is often favoured by woodland managers in native woodland reforestation, and because it copes with exposure and poor site conditions, can provide shelter for domestic animals in many upland farming regions. The Bronze Birch Borer (BBB) is not present in the UK but is regarded as high risk (UK Pest Risk Register) and represent a serious threat to Scotland’s broadleaved trees, woods and forests. The relative importance of birch to Scottish growers and landscapes suggests a stronger sensitivity to the threat of BBB than generally across the UK; characterization of the BBB threat is poor, e.g. compared to Emerald Ash Borer, a related pest.

This project is being conducted on behalf of the Plant Heath Centre, Scottish Forestry and NatureScot and aims to better characterise the threat of BBB to Scotland.

Impact: Draw together available evidence and, where feasible, gather new evidence relating to the threat of Bronze Birch Borer to Scotland; and provide information to inform contingency plans and make recommendations for further work to refine the evidence.

Publications

Forestry, Environment | Final Report and Policy Document

Preliminary investigation into the threat of Bronze Birch Borer (BBB - Agrilus anxius) to Scotland

August 2023

The Bronze Birch Borer (BBB, Agrilus anxius) is a major threat to birch trees. This project had co-funding from Scottish Forestry and NatureScot and undertook evidence gathering to assess the threat BBB poses to Scotland, inform risk assessment, surveillance and contingency planning, and identify key risks and knowledge gaps.