The European ash tree is now facing the most significant modern threat to its survival. Ash Dieback (Hymenoscyphus fraxineus) was common in China and Asia (where native ash species have obtained tolerance over time). In a globalised world, where timber and plant material are constantly being transported; this has sped up the spread of infectious tree diseases and pests. Ash dieback has ripped through Europe and was identified in the UK in 2012. Many UK ash woodlands have since been decimated by this disease which resulted in some very gloomy headlines.
