Hymenoscyphus fraxineus (previously Chalara fraxinea) is a fungal pathogen killing large numbers of ash trees across the UK.

The disease was first recorded in nursery stock in Britain 2012, before being found affecting trees in the wider environment in Norfolk and Suffolk in 2013.

The disease has now spread throughout much of the country and is well established in Somerset, found across the county, with many trees in areas such as the Mendips already dead or dying.

Somerset has a high density of ash trees, meaning the impact from Ash Dieback will be a highly significant, with big changes to our landscape.