Ash Dieback Management: Emergency Felling Permissions

Ash dieback disease has become one of the most significant tree health challenges facing the UK, with millions of ash trees affected across England, Scotland, Wales and Northern Ireland. This devastating fungal disease, caused by Hymenoscyphus fraxineus, has prompted urgent action from landowners, local authorities and tree professionals nationwide. Understanding the emergency felling permissions process has become crucial for property owners dealing with infected ash trees that pose immediate safety risks. With the disease affecting up to 80% of ash trees in some regions, navigating the legal requirements for emergency tree removal whilst ensuring public safety has never been more critical.

Understanding Ash Dieback Disease

Ash dieback, also known as Chalara dieback, first appeared in the UK in 2012 and has since spread rapidly throughout the country. The disease causes leaf loss, crown dieback and bark lesions, ultimately weakening the tree’s structural integrity and making it susceptible to secondary infections and wind damage.

Key symptoms to identify include:

• Wilting and blackening of leaves during summer months
• Diamond-shaped lesions on bark, particularly where branches meet the trunk
• Dieback of shoots, twigs and branches in the crown
• Epicormic growth (new shoots from the trunk)
• Loss of leaves earlier than usual in autumn

The Forestry Commission estimates that ash dieback will cost the UK economy approximately £15 billion over the next century, with significant impacts on biodiversity, landscape character and timber industries. Areas particularly affected include Kent, East Anglia, the Midlands and parts of Scotland, though the disease continues to spread westward.

When Emergency Felling Becomes Necessary

Emergency felling permissions become essential when ash trees affected by dieback pose an immediate danger to people or property. Unlike standard tree work applications, emergency procedures allow for expedited removal of hazardous trees.

Situations requiring emergency intervention include:

• Trees showing advanced decay with risk of imminent collapse
• Ash trees overhanging public highways, footpaths or buildings
• Trees in school grounds, parks or other high-traffic public areas
• Specimens near railway lines or power infrastructure
• Trees with significant basal damage or root plate movement

Professional arboricultural assessment is crucial in determining whether a tree qualifies for emergency removal. Qualified tree surgeons can provide detailed risk assessments using the Quantified Tree Risk Assessment (QTRA) methodology or similar recognised systems, documenting the urgency of intervention required.

Legal Framework for Emergency Tree Felling

The legal requirements for felling ash trees vary depending on several factors, including tree preservation orders (TPOs), conservation area status and the size of woodland affected.

Tree Preservation Orders and Conservation Areas

For trees protected by TPOs or located within conservation areas, local planning authorities must be notified before any work commences. However, emergency exemptions apply under Section 198(6)(b) of the Town and Country Planning Act 1990 when trees present an immediate risk of serious harm.

The exemption process requires:

• Written notification to the local authority within five working days of the emergency work
• Photographic evidence of the tree’s condition and hazards presented
• Professional arboricultural report detailing the urgency
• Replacement planting proposals where appropriate

Felling Licences

For woodland areas, a felling licence from the Forestry Commission is typically required when felling more than 5 cubic metres of timber per calendar quarter. However, exemptions exist for:

• Dead or dangerous trees posing immediate danger
• Trees affected by quarantine pests or diseases under statutory plant health notices
• Trees within private gardens
• Orchard trees or those grown for fruit production

The Forestry Commission has streamlined procedures for ash dieback cases, with dedicated case officers assigned to handle applications in severely affected regions such as Norfolk, Suffolk and Derbyshire.

The Emergency Permissions Application Process

Obtaining emergency felling permissions requires careful documentation and adherence to specific procedures. The process typically takes 5-10 working days for genuine emergencies, compared to the standard 8-week determination period for regular applications.

Step-by-Step Application Guide

1. Initial Assessment (Day 1-2)
Engage a qualified arboricultural consultant to conduct a detailed tree survey. Costs typically range from £350-£750 depending on the number of trees and site complexity.

2. Documentation Preparation (Day 2-3)
Compile necessary documents including:

• Completed emergency works notification form
• Arboricultural impact assessment
• Site location plan (1:2500 scale)
• Photographic evidence with date stamps
• Tree protection plan for retained specimens

3. Submission to Authorities (Day 3-4)
Submit applications simultaneously to relevant authorities – local planning authority for TPO trees and Forestry Commission for woodland sites. Most councils now accept online submissions through planning portals.

4. Emergency Works Commencement (Day 5+)
Upon receiving acknowledgement, emergency works can proceed whilst formal determination is pending. Maintain detailed records of all work undertaken.

Cost Implications and Financial Support

Managing ash dieback through emergency felling can involve substantial costs, particularly for large landowners or those with multiple affected trees.

Typical Costs Breakdown

• Tree survey and risk assessment: £350-£750
• Emergency felling application: £0-£234 (varies by local authority)
• Tree felling and removal: £400-£1,500 per tree
• Stump grinding: £60-£350 per stump
• Replacement planting: £150-£400 per tree
• Ongoing monitoring: £200-£500 annually

Financial support may be available through various schemes:

Countryside Stewardship Grants offer up to £1,800 per hectare for woodland improvement works including ash dieback management. Applications open annually in February.

Tree Health Pilot Scheme provides funding in specific regions including Devon, Cumbria and the North York Moors for landowners managing diseased trees.

Local Authority Grants – Some councils offer discretionary grants for tree safety works. For example, Kent County Council provides up to £5,000 for ash dieback management on private land adjacent to public highways.

Working with Professional Tree Surgeons

Selecting qualified professionals is essential for safe and compliant ash dieback management. The Arboricultural Association maintains a directory of approved contractors across the UK.

Essential qualifications to verify include:

• NPTC certification for chainsaw operations and aerial tree work
• Public liability insurance (minimum £5 million recommended)
• Waste carrier’s licence for timber disposal
• Experience with plant health regulations and biosecurity protocols

Reputable tree surgery companies in ash dieback hotspots have developed specialist expertise. Firms in East Anglia report handling 40-60% more emergency ash removals compared to pre-2020 levels, with dedicated teams for rapid response work.

Biosecurity Measures

Professional contractors must implement strict biosecurity protocols to prevent disease spread:

• Cleaning and disinfecting equipment between sites
• Appropriate disposal of infected material at licensed facilities
• Avoiding work during peak spore production periods (June-September)
• Maintaining exclusion zones around work areas

Long-term Management Strategies

Beyond emergency felling, developing comprehensive management strategies helps property owners address ash dieback systematically whilst maintaining landscape value and ecological benefits.

Resistance and Tolerance

Research by the John Innes Centre and Forest Research indicates approximately 1-5% of ash trees show genetic resistance to dieback. Identifying and protecting these specimens is crucial for future ash population recovery. Signs of potential resistance include:

• Minimal crown dieback despite surrounding infection
• Rapid wound healing and compartmentalisation
• Vigorous growth despite disease presence
• Limited progression of bark lesions

Replacement Planting Considerations

Selecting appropriate replacement species ensures landscape continuity and biodiversity support. Recommended alternatives include:

• Small-leaved lime (Tilia cordata) – native, supports similar invertebrate communities
• Field maple (Acer campestre) – hardy, suitable for hedgerows
• Wild service tree (Sorbus torminalis) – rare native, climate-resilient
• Hornbeam (Carpinus betulus) – tolerates various soil conditions
• Oak species – long-term landscape value, high biodiversity benefit

The Woodland Trust’s Emergency Tree Fund provides free tree packs for community groups and landowners replacing ash trees lost to disease.

Regional Variations and Local Authority Approaches

Different regions have developed varied approaches to managing ash dieback based on infection severity and local priorities.

South East England: Kent and Sussex councils have established dedicated ash dieback officers, streamlining emergency permissions with 48-hour response targets for high-risk cases.

East Anglia: Norfolk and Suffolk operate joint protocols with the Forestry Commission, allowing batch applications for multiple trees and simplified procedures for roadside specimens.

Northern England: Yorkshire Dales and Lake District National Park authorities balance disease management with landscape character preservation, requiring detailed mitigation strategies for visually prominent trees.

Scotland: Scottish Forestry provides enhanced grant support through the Forestry Grant Scheme, with up to £3,000 per hectare for ash restoration projects.

Wales: Natural Resources Wales offers bilingual support services and coordinates with Glastir woodland schemes for integrated management approaches.

Conclusion

Managing ash dieback through emergency felling permissions requires careful navigation of legal requirements, safety considerations and ecological responsibilities. As the disease continues to spread across the UK, property owners must remain vigilant in monitoring ash trees for signs of decline and potential hazards. By understanding the emergency permissions process, working with qualified professionals and implementing comprehensive management strategies, we can minimise risks whilst preserving the ecological and landscape value that ash trees have provided for centuries. The key lies in proactive assessment, timely intervention and thoughtful replacement planting to ensure our landscapes remain resilient for future generations. With appropriate planning and professional support, the challenges posed by ash dieback can be effectively managed whilst maintaining compliance with UK regulations and ensuring public safety.