Dutch Elm Disease (DED) is a fungal disease of elm trees which is spread by the elm bark beetle. DED can affect any elm tree and once infected, the disease always kills – over several seasons or sometimes in as little as three weeks.
One of the most important ways that you can help prevent the spread of invasive pests is to avoid the illegal practice of transporting firewood or wood products from an infested area into and around the province.
ELM PRUNING BAN BEGINS APRIL 1
From April 1 to August 31 every year, it is illegal to prune elm trees in Saskatchewan.
The ban coincides with the time of year when the elm bark beetles that spread Dutch elm disease (DED) are most active. Fresh cuts from pruning can attract the tiny insects, increasing the chance of an infection.
HOW TO IDENTIFY AN ELM TREE
The trees along your street are beautiful, but if you don’t know whether they’re elm trees, you don’t know if they are danger. In many parts within Weyburn, American elms can grow very large, spreading umbrella-like canopy.
Leaves are oval shaped, with pointed tip and serrated edges.
The bark is usually light to dark grey with a grooved surface.
Siberian or Manchurian elms are also susceptible to DED. They can take form of shrubby hedges or single trees. The leaves are smaller and more elongated than those of the American elm.
Learn more about DED symptoms, prevention and management by exploring the topics below.