Ville de MontréalLarge Parks and Greening

Emerald Ash Borer

By-law 15-040 to stop the spread of the emerald ash borer on the territory of Montréal is officially in force since June 1, 2015. Below you will find detailed information on how to comply with the new by-law:

By-law to stop the spread of the emerald ash borer

Coloured markings are often used to monitor and plan operations on public trees. These colours may indicate a pesticide treatment, pruning, felling or another intervention. Here is the color code used on ash trees by all the boroughs in 2016:

  • Even years (2014, 2016 ...)
    • planning a detection = yellow dot,
    • detection performed = white point,
    • injection green dot =
  • Odd years (2015, 2017 ...)
    • planning a detection = blue dot,
    • detection performed = white point,
    • injection = pink point (which may appear red on the bark)
  • Regardless years, ash trees which must be cut down are marked by an orange or green line around the trunk.

Important message:

In order to limit the spread of the emerald ash borer, the city asks residents to not place deciduous tree branches in their garbage can or green waste bag. They should be placed on the curbside in unattached bundles, and you should call 311 to have them picked up. Thank you for your valuable cooperation.

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FAQ
High risk area