‘Very light pruning (two or three small branches) is permissible in summer, but do not prune birch trees in late summer or fall.’ Also do not prune in spring, as it will actively harm birch trees.

Climatic stress events, such as extreme temperatures and prolonged droughts, are increasingly affecting tree growth and ...

It said the trees could "fall with very little warning" and said ... He said native species such as oaks, hazel, birch and beech trees would be planted in place of the ash trees.