a fungal infection spread by elm bark beetles. (For quick identification of four elm species by their samara, the linked iNaturalist post is very helpful.) Above: Elm samara are juicy, sweetly ...

Dutch elm disease is a fungal infection spread by tiny bark beetles that can rapidly wither and kill healthy trees. A new strain has been created by crossing a British elm growing in Kent with a ...

An ancient lone wych elm whose remote Highland location has protected it from Dutch elm disease has been joined by dozens of seedlings for the first time in hundreds of years. The elm - dubbed the ...