Why is there no elm tree forest in ire land?

Elm trees were once common in Ireland, but their populations significantly declined due to the introduction of Dutch elm disease in the 20th century. This fungal disease devastated elm trees across Europe, including Ireland, leading to the near extinction of the species in many areas. Additionally, changes in land use and deforestation have further inhibited the natural regeneration of elm forests. As a result, Ireland lacks significant elm tree forests today.