Notification of Invasive Species control using herbicide

By October 6, 2025Events, Parks, Ward 1

This is to notify you of upcoming herbicide application to control of invasive woody species, such as European Buckthorn (Rhamnus cathartica), and naturalization plantings beginning November 3 at Cawthra Woods.

Contractors working on behalf of the City, Brinkman Living Infrastructure Ltd., will be applying Garlon (Triclopyr) directly to plants using a handheld/backpack sprayer to minimize impacts to plants in the surrounding area.

Notification signs will be posted at all access points to the spray area at least 24 hours prior to treatment and will be removed no less than 48 hours after treatment. All work should be completed within 2 weeks, but the timelines may be extended as needed depending on weather conditions.

This work supports the City’s Invasive Species Management program and improves the health of natural areas across the City.

The Park Supervisor and 311 have been notified of these operations.