To help keep Alberta Dutch elm disease (DED) free, the Society to Prevent Dutch Elm Disease (STOPDED) encourages everyone to pay attention to the provincial elm pruning ban between April 1 and September 30.
Caitlynn Reesor discusses (0:59 minutes) (462 Kb)
Having trees pruned properly is important. Many trees are killed or ruined annually from improper pruning. Pruning, like any other skill, requires knowledge and should be done by a professional certified arborist who can determine what type of pruning is necessary to maintain or improve the health, appearance and safety of your trees.
Source: Alberta Agriculture and Rural Development