A reader from Bashaw, Alberta, living on an acreage near Long Valley Lake, seeks advice on pruning elm trees. The property includes a mix of spruce, pine, and elm trees, with some elms featuring long, low-hanging branches that trail along the forest floor before rising again. The reader has been clearing dead bushes to allow more sunlight to reach the undergrowth, including smaller evergreens and lilac bushes, and to reduce fire fuel.
Pruning Restrictions for Elm Trees
According to the Government of Alberta, pruning elms is prohibited from April 1 to September 30. This restriction helps protect trees from Dutch Elm Disease, a fatal fungal infection spread by bark beetles. Improper pruning can weaken trees, making them more susceptible to disease. The government recommends hiring a certified arborist to assess and prune elms correctly, ensuring the tree's health, appearance, and safety.
Reader's Concerns and Expert Advice
The reader wonders if cutting the lower branches would harm the trees. The expert advises leaving them alone or consulting a professional arborist. Removing too much live wood can stress the tree, and if Dutch Elm Disease is present, it could be fatal. The reader's proactive approach to fire prevention is commendable, especially given climate change concerns.
Additional Resources
For more information on Dutch Elm Disease, visit the Alberta Society to Prevent Dutch Elm Disease website. For gardening questions, email filipskigerald@gmail.com or read past columns and the book "Just Ask Jerry." Follow on X (Twitter) @justaskjerry01.
