Introduction
The disease was first recorded in nursery stock in Britain in 2012. It spread to trees in the wider environment in Norfolk and Suffolk in 2013.
It has now spread across much of the country. In Somerset, it is well established and present across the county. Many trees in areas such as the Mendips are already dead or dying.
Somerset has a high density of ash trees. This makes the impact of ash dieback highly significant and will lead to major changes to our landscape.
What we are doing
Surveys have started to identify dangerous trees on our road network. We have already begun removing some of these trees. We are working with external organisations to develop an ash dieback action plan. The plan will identify key issues and help us understand likely outcomes.
Our main aim is to manage the risks posed by a large number of dying trees. We also need to plan for potential environmental damage.
To support this, we have formed an ash dieback resilience group. This group brings together representatives from several organisations.
Information for landowners
Under the Occupiers’ Liability Act 1957 and 1984, landowners must keep visitors and trespassers safe on their land. They must also protect the public from falling branches or trees.
Find out how to Identify the disease
Tree inspections
If you own or manage land with ash trees near roads or public spaces, you must monitor their condition. Inspect trees regularly and act when needed. You may need to reduce the crown, remove branches or fell the tree.
Find an Arboricultural Association (ARB) Approved Contractor using the online directory.
Replacement planting (three-two-one rule)
As a landowner or manager, you help protect the local landscape and natural environment. Trees, hedgerows and woodlands support wildlife and shape Somerset. Many ash trees are likely to be lost. You should plan now to reduce the impact.
Use the three-two-one rule when replacing trees:
- Remove a large or mature tree: plant three
- Remove a medium or semi-mature tree: plant two
- Remove a sapling: plant one
Information for the public
Visit the Forestry Research website for help identifying the disease affecting your tree.
Change to the landscape
Up to 90% of Somerset’s ash trees may die. Many trees in parks, gardens, woodlands, fields, hedgerows and road verges are likely to be lost in the coming years.
We will work with external organisations and seek funding for replacement planting where possible. We will identify suitable, sustainable locations for new trees.