Home / Environment / Woodland Health Alert: 29% Trees Diseased
Woodland Health Alert: 29% Trees Diseased
3 Dec, 2025
Summary
- A wildlife charity reports a significant woodland crisis due to tree diseases.
- Nearly 29% of nearly 6,000 surveyed trees are suffering from various diseases.
- Ash dieback fungal disease severely affects 82% of all ash trees surveyed.

A critical woodland crisis is unfolding as trees across the country are succumbing to prevalent diseases. A comprehensive survey conducted by a wildlife trust has highlighted the severity of the issue, revealing that nearly 29% of almost 6,000 trees examined are afflicted.
The data indicates a widespread problem, with specific species showing alarming levels of infection. The ash tree, in particular, is facing devastation, as a staggering 82% of those surveyed are suffering from the destructive ash dieback fungal disease. This widespread impact underscores a significant threat to the health of UK woodlands.
Monitoring and research managers have expressed deep concern over these findings, emphasizing the urgent need for attention and action to address the growing threat to these vital natural resources. The escalating disease rates pose a considerable risk to biodiversity and the overall ecosystem.



