inserted more than 90 taps at the base of the tree and injected about 60 gallons of a specialized treatment that traveled throughout the tree on a dry ... By 1989, more than 75 percent had been lost ...

The elm stands alone in Glen Affric, south of Inverness, and its location is credited with protecting it from the beetle that spreads the disease. Recently named Scotland's tree of the year ...

Dutch Elm Disease is a fungal infection that affects Alberta elm trees and is spread by three types of beetles. The beetles ...

That suggests more confirmations are expected. “If Dutch elm disease becomes established, it is very hard to eradicate as the ...