Lead Author: Forestry Commission. About 25% of the total area of ash (3,000 ha) in native woodland occurs in woods where the canopy cover of ash is greater than 50%, and it is these woods where the potential impacts of ash dieback will be severe. As of September 2018, 49.2% of the UK landmass, split by 10km grid squares, was found to have been infected. For fuller advice, refer to their website. BIOSECURITY Measures. In the meantime, here is an excerpt from the Forestry Commission’s guidance. Landowners are not required to take any particular action if their ash trees are infected unless the Forestry Commission or another plant health authority serves them with a statutory Plant Health Notice requiring action. Forestry Commission on Ash dieback. A fatal fungal disease of ash trees First confirmed in the UK in 2012, ash dieback, also known as 'Chalara' or 'Chalara ash dieback', is a disease of ash trees caused by a fungus called Hymenoscyphus fraxineus. Ash dieback – the Woodland Trust's position. If you manage a woodland you can find more guidance from the Forestry Commission here. It is intended to encourage people to: • understand the implications of ash dieback on land for which they are responsible • think strategically about the management of ash trees • use the guidance highlighted to adopt good practice Introduction Ash trees are found in woodland and non-woodland settings, in both urban and rural landscapes. While many will decline, many will persist indefinitely.” Forestry Commission/Defra – August 2019 “It is thought that trees are escaping the disease … 3. By doing so, you will help reduce the risk of introducing and spreading tree pests and diseases. According to Forest Research, the principal organisation for forestry research, Chalara ash dieback will cause significant damage to the UK’s ash population with implications for the forestry industry as a whole. We would encourage all members of the public to report the disease in new (unshaded) areas. Position statement. The felling of diseased ash within woodland still requires a felling licence from the Forestry Commission unless they are dead or pose a real danger. Ash Dieback (Hymenoscyphus fraxineus) is a fungal disease spread by aerially dispersed spores.It has spready rapidly across Europe since the mid 90’s via human and natural dispersal and is now widespread across the UK. To help you spot symptoms of the disease and report suspected sightings, visit the Forestry Commission's guide. If composting ash leaves in an area where ash dieback is known to be present, the Forestry Commission recommends covering them with with a 10cm (4-inch) layer of soil or a 15-30cm (6-12 inches) layer of other plant material, and leaving the heap undisturbed for a year (other than covering it with more material). To report suspected cases of ash dieback disease, contact the Food and Environment Research Agency on 01904 465625 or the Forestry Commission on 0131 314 6414. Ash dieback (Hymenoscyphus fraxineus) is a fungus which originated in Asia. Ash Dieback Case Studies launched: Sharing Experiences As the impact of the devastating disease ash dieback on the UK treescape gathers pace, woodland owners and managers are sharing their experiences to help others manage that impact. This, combined with the observed rate of spread and the high level of infection already present, make eradication of Chalara impossible. FORESTRY ENGLAND Find out more. If you believe that you have identified Ash Dieback in ash trees, please report it immediately to the appropriate authority DEFRA. For more information on Chalara dieback of ash please see the Chalara pages of the Forestry Commission Website How do I report Chalara? Ash dieback is caused by a fungus called . Management of Native Ash in Scotland. For fuller advice, refer to their website. The main purpose of this note is to offer guidance on managing existing native woodlands that contain ash trees, including those of high nature conservation value, to ameliorate the potential impacts of ash-dieback on biodiversity, and to encourage ecological functioning in these ecosystems. A new resource by the Royal Forestry Society (RFS), in partnership with the Forestry Commission. Ash dieback – lesion on 4 year old ash. Downloads. The Trust has also considered the National Tree Safety Group’s Ash dieback guidance. Ash is one of our three main hedgerow trees, along with oak and beech, and makes up about one sixth (16%) of their shrubby growth. Risk Matrix We have produced a Management intervention model Risk Matrix to formalise the decision-making … Chalara Ash Dieback is a disease that is infecting ash trees across Europe and the UK. Related pages. ash‐dominated woodland (where ash is >50% of the canopy) is 6,229 ha. If you suspect you have found a new infection, please report it by using Tree Alert on the Forestry Commission website. The Forestry Commission website has information on what the government and other groups are doing to reduce the risk of spread and confirmed sites are shown on a map. Ash dieback disease - Pest Alert (PDF, 639.7kB) Ash dieback is a disease of ash trees caused by a fungus called Chalara fraxinea. Aims MANAGE HEALTH & SAFETY RISKS ... Forestry Commission ON046 – Managing ash in woodlands in the light of ash dieback 4.2.12. SSSI woodland and ash 3.1 Ash dieback and ash mortality The level and rate of tree mortality will vary from site-to-site and can be influenced by a wide range Chalara dieback of ash was first detected . ‘Ash wood may continue to be moved within Great Britain except from woodlands or other sites where C. fraxinea has either been confirmed or is suspected, and a statutory Plant Health Notice has been served. 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