GFM Network News


Elm pruning ban over until March

It’s now time “to start taking the dead wood out of your elm trees,” says Janet Feddes-Calpas, executive director, Society to Prevent Dutch Elm Disease (STOPDED). The only time it is legal to prune elms in Alberta is between Oct. 1 and March 31. “This is when the elm bark beetles, responsible for spreading the […] Read more

Tree pruning is a good thing when done properly

When done properly, pruning will produce strong, healthy, and attractive trees. “However, before pruning a tree, you need to understand why, when, and how to prune,” said Janet Feddes-Calpas, Stop Dutch Elm Disease (STOPDED) co-ordinator. Rule No. 1 is don’t top a tree. “Topping is the practice of removing large branches and tops of trees […] Read more


Winter is the time to prune dead wood from elms, but it’s recommended you employ a professional arborist.

Elm pruning ban over until March

Pruning elms to keep them healthy is essential to keeping Dutch elm disease 
out of the province


The annual elm-pruning ban in Alberta has been lifted until March 31. “It’s time to start taking the dead wood out of your elm trees,” said Janet Feddes-Calpas, executive director, Society to Prevent Dutch Elm Disease (STOPDED). “To help eliminate elm bark beetle habitat, elm sanitation is essential to an integrated Dutch elm disease (DED) […] Read more

Elm-pruning ban lifted until next spring

Now is the time to remove dead wood to help keep elms healthy

The annual elm-pruning ban in Alberta has been lifted until March 31. “With the annual ban now lifted, it’s time to start taking the dead wood out of your elm trees,” said Janet Feddes-Calpas, executive director of the Society to Prevent Dutch Elm Disease. “To help eliminate elm bark beetle habitat, elm sanitation is essential […] Read more