The ban on pruning elms is now in place until Sept. 30. All pruned wood and firewood from elms should now have been disposed of, either by burning, burying or chipping. Stored elm wood can harbour the elm bark beetles that can carry DED.
“If elm trees are pruned during the pruning ban period, these beetles, which are active at this time, can be attracted to the scent of the fresh wound and possibly infect an otherwise healthy elm with DED. Once an elm tree is infected with DED it will die within that year,” said Janet Feddes-Calpas, executive director of the Society to Prevent Dutch Elm Disease.