Protect Our Elm Trees

Edmonton has recently identified its first cases of Dutch elm disease (DED), a threat that is now close to home. DED is caused by a fungus spread among elm trees through their roots and by specific species of bark beetles that carry the fungus from tree to tree.

Pruning of elm trees is restricted from April 1 to September 30 each year. This precaution is crucial because pruning releases a scent that attracts the elm bark beetle. DED can devastate a tree in as little as three weeks.

Watch for these symptoms of Dutch elm disease:

• Drooping and yellowing leaves in summer
• Branches with smaller leaves than the rest of the tree
• Branches with no leaves
• Brown, wilted leaves that remain on the tree

With Edmonton so close, this threat may also be near us. Homeowners can play a crucial role by refraining from storing or transporting elm wood. Beginning October 1st, removing any dead branches will help keep DED at bay, as these branches are a major attractant for beetles. Proper disposal methods for elm wood include taking it to a landfill, burying it, burning it, or removing its bark.

Your cooperation in these measures is greatly appreciated to safeguard our elm trees from the threat of DED.