DED Treatment Beginning This Week

Dutch Elm Disease Treatment Beginning This Week
Posted on 08/11/2020
The City of Charlottetown’s Dutch Elm Disease (DED) monitoring and management program began in July and treatment will begin later this week.

The program began with inspections, looking at all elm trees on public and private lands. Treatment will now begin on eight of the City’s largest and healthiest elms on City property. This work is done by a licensed applicator. Residents living near trees that will be treated will be notified by letter in advance.

The City has been closely monitoring elm trees since launching its Dutch Elm Disease management plan in 2015. DED is an incurable and, for the most part, deadly fungal disease of elm trees. The fungal spores enter the tree, clogging the vessels that transport water and nutrients up and down the tree. Signs of DED include leaves wilting and turning yellow and brown. DED usually kills a tree in three to five years.

The City has been trying to slow the progress of the disease by closely monitoring elms on public and private property. Removals on both public and private lands are done by the City in the fall with trees that are identified as having DED. The wood is then disposed of properly to avoid further spread of the disease. The pruning or removal of elms must be done in the fall or winter months when Elm Bark Beetles go into hibernation.

As of 2020, elm trees 189 are remaining on City property and 297 on private property. Residents will be contacted by the City if they have an affected elm tree on their property.

DED, if not controlled, can quickly spread to remaining healthy elm trees resulting in even more loss of some of the City’s largest and most beautiful trees. The City remains committed to its DED management program and trying to slow the progress of the disease to extend the life of the remaining elms.