Dutch Elm Disease

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Dutch elm disease (DED) is a deadly disease that can affect any elm tree.

Since its introduction from Europe in 1930, it has destroyed millions of American elm trees across North America.

DED is prevalent in Manitoba, Saskatchewan and Montana. At present, Alberta has the largest DED-free American elm stands in the world.

A total of 289,876 elms, worth $978,149,448, grow in Alberta. Of this 193,903 elms, valued at $643,743,938.00 make up the urban forest in 17 cities.

Alberta has been fortunate to remain DED free for many years however, in 1998 one elm tree in Wainwright was confirmed to have disease. The tree was immediately removed and burned. It is believed that firewood brought into the province was the source of infection. Alberta is still DED-free.

News		Dutch Elm Disease
2017 monitoring program 2017 elm bark beetles surveillance results Membership form Sample submission form		Do you have elms Signs and symptoms of DED Signs of beetle activity Disease cycle Firewood can be DED-ly
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Dutch Elm Disease Program		STOPDED Information
Alberta Dutch elm disease prevention and control measures Prevention - what you can do Province wide elm inventory Dutch Elm Disease sampling procedures DED awareness week Brochures and posters		Board of Directors Membership form



Videos		The Last Stand

Trap Installation Trap take down Sample packaging for invasive alien species


STOPDED Annual Reports		Research Project Final Reports
2016/2017 2015/2016 Annual reports for 2009 - 2015		2011 2010

Other Documents in the Series

Dutch Elm Disease - Current Document
First Report of Dutch Elm Disease in Alberta
Dutch Elm Disease Prevention: What You Can Do
Province Wide Elm Tree Inventory
Dutch Elm Disease Links
Surveillance of Elm Trees for Dutch Elm Disease and Dutch Elm Disease Public Awareness in Municipalities Along the Alberta and Saskatchewan Border

For more information about the content of this document, contact Shelley Barkley.
This information published to the web on June 14, 2001.
Last Reviewed/Revised on April 11, 2018.