Landowners Urged to Inspect Ash Trees Amid Disease Concerns

May 13, 2026 Off By

Leeds City Council advises checking ash trees as leaves emerge

Leeds City Council has issued a reminder to landowners to inspect their ash trees, particularly as the trees come into full leaf between May and September. This follows ongoing concerns about ash dieback disease, which has affected thousands of trees across both public and private land in the area.

Safety risks from diseased ash trees

The council has identified numerous ash trees infected with ash dieback or exhibiting other defects. These trees pose a safety risk as they may collapse, especially near highways, potentially causing harm to people and property as well as disruption to transport routes.

Leeds City Council has a legal duty to manage trees under its control to minimise risk, and it emphasises that private landowners share this responsibility for trees on their own land.

Interactive map and ongoing surveys

In October 2025, the council launched an interactive map that displays ash trees located near main highways along with their current condition. This tool is designed to help landowners determine whether any trees on or near their property require action.

Surveys of ash trees are resuming in May 2026.
The map will be regularly updated as new assessments are completed.
A dedicated web page provides guidance on identifying affected trees, understanding legal responsibilities, and accessing support.

Tree removal and replacement efforts

To date, the council has removed nearly 3,000 ash trees from its land due to disease and safety concerns. During the past winter season, close to 4,000 new trees were planted as replacements, with plans to continue planting at a ratio of five new trees for every one removed on council land.

About ash dieback disease

Ash dieback is caused by a fungal infection that disrupts the tree’s ability to transport water and nutrients. This weakens the tree, making it brittle and vulnerable to further infections. The disease is expected to have a significant impact on the UK’s landscape and biodiversity.

Council statement

Councillor Mohammed Rafique, executive member for climate, energy, environment and green space at Leeds City Council, said:

“Our teams have worked very hard to identify thousands of trees near to highways that are currently in need of felling. These can all be seen on the interactive map, which will be continuously updated as we continue our survey.

Just like the council has a responsibility to manage trees on our land, we want to remind residents that landowners have that same responsibility on theirs.

With ash trees being in full leaf from May it is the perfect time to look for signs of ash dieback on your land.”