Why is Dutch elm disease a serious problem in Winnipeg?
The DED fungus was introduced into North America in the early 1900’s via infected elm wood transported from overseas. The disease was first detected in Manitoba right here in Winnipeg in 1975. The fungal infection results in the blockage of the tree’s water-conducting tissue and ultimately kills susceptible elm trees.
How do I know if my tree has Dutch elm disease?
If you suspect that a Dutch Elm tree is diseased, select some live twigs that show symptoms. First peel back the bark of the twig: dark brown or purple longitudinal streaks in the outer wood indicate disease. You can also cut across a twig to examine the outer wood: a ring of dark brown staining indicates disease.
How can you tell an elm tree?
Elm trees can be identified by their gray bark with deep furrows, pointed oval leaves that have double-serrated margins, and their large sprawling canopy. Elm flowers are inconspicuous clusters of flowers appearing in spring that mature into round samaras, or elm seeds. Elm foliage turns golden yellow in the fall.
What does elm burn like?
Elm produces a decent fire and quality coal, but heat output isn’t very high. Its abundant availability and easy to burn qualities make it a decent firewood whereas low heat, average smoke and smell make it an average quality firewood as compared to other top firewood species.
How many elm trees are dying in Winnipeg every year?
According to the City of Winnipeg, since 2016, the city has lost more than 33,000 elm trees to the disease. This figure is the equivalent of losing all the trees on 330 city blocks in just five years, as on average there are about 100 elm trees per Winnipeg block.
What is the city of Winnipeg doing about Dutch elm disease?
The City of Winnipeg’s Urban Forestry Branch is collaborating with The University of Winnipeg’s Centre for Forest Interdisciplinary Research on a Dutch elm disease (DED) research project to identify and prioritize the early removal of brood trees.
Are in-injection tree treatments available in Winnipeg?
Injection treatments are not intended to replace sanitation practices. Some tree care companies offer these services in Winnipeg and these companies can be found in the yellow pages under “Tree Services”. These treatments should be done by a professional arborist to ensure proper application.
Does the city of Winnipeg use DED treatments?
The City of Winnipeg currently does not use these treatments in its DED management program. As the City manages DED on a large scale, timely sanitation and elm bark beetle control are the strongest components in reducing the spread of the disease and preserving our elm canopy.
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