Please be advised that Maple Hill Tree Service working on behalf of the City of Mississauga will be performing the removal and herbicide treatment of Tree of Heaven in Orchard Heights Park, and in Helen Molasy Park under a joint invasive species management project with our Natural Areas Management Team to support our woodland management efforts. 38 trees in Orchard Heights Park have been identified and marked for removal and treatment, and 13 trees have been identified and marked for removal and treatment in Helen Molasy Park , to enhance the integrity of the woodland. Tree of Heaven has become a widespread invasive species across North America known to quickly and aggressively establish itself while inhibiting the growth of native plants. Its control is critical to maintain the balance of the native ecosystems and biodiversity. Debris generated from operations will be removed from site. Timing of work is weather dependent but is expected to initiate within the next 2 weeks.
All Tree of Heaven which will be removed will be treated by a herbicide application to the remaining stumps. The reason for this herbicide application will be to prevent aggressive resprouting known to occur with these trees. The herbicide that will be used is Garlon XRT (active ingredient: Triclopyr). The herbicide will be directly applied to the stump to minimize the potential for impacts to the surrounding areas. As per provincial regulations, a notice of upcoming herbicide application will be posted on-site at least 24 hours in advance of the work and will remain at least 48 hours afterwards.
Following treatment, the area will be monitored to determine if any further treatment will be needed in 2025.
