Chalara is a serious disease that has affected a high proportion of ash trees in northern Europe. Its presence within the UK was detected in February 2012 and since then a number of cases have been confirmed in nurseries, recent planting sites and the wider environment.
In support of the Chalara control plan, JNCC have produced an initial assessment of where there are important ash locations in Great Britain. Important ash is defined as where it is a significant and hard to replace or re-create semi-natural feature with a strong role in ecosystem functioning. This assessment will be updated as new information becomes available.
The interim Chalara control plan can be seen here
NBN Gateway data have been used to help inform the control plan and information on all the data sources used can be found here.
Image courtesy of FERA