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Emerald ash borer
the emerald ash borer
The emerald ash borer is an invasive exotic insect native to Asia. It is a beetle of the Buprestidae family that feeds exclusively on ash trees, causing them to decline and eventually die.
Its presence was confirmed in Rosemère in 2014. As early as 2015, emerald ash borers were detected in most of the traps set up throughout the area. Today, the insect is widespread in the region, and ash tree mortality continues to rise.
The emerald ash borer poses a significant threat to our urban forest, which contains more than 10,000 ash trees, including approximately 1,800 along streets and in parks, as well as between 6,000 and 8,000 on private properties, not to mention those found in wooded areas.
Taking Action to Preserve Our Urban Forest
To limit the impact of the emerald ash borer and help maintain tree cover, the Town encourages property owners to adopt one of the following approaches: Treat, Remove, or Plant, depending on the health of their tree.
Treat
Preventive treatment remains an option for some healthy ash trees. The biological insecticide TreeAzin® can help slow the progression of the infestation and extend the life of treated trees.
Currently, it is generally recommended to apply treatments for two consecutive years, then take a break in the third year before resuming the cycle. Property owners wishing to treat their ash trees are encouraged to consult the list of specialized companies on the bioforest.ca website.
However, since the infestation is now very advanced in the region, few new ash trees still meet the criteria for achieving satisfactory results. The trees that remain healthy are generally those that have been treated for several years.
Cut Down
When an ash tree is severely damaged or has become dangerous, removing it is often the most appropriate solution.
It is the property owner’s responsibility to have a dead, dying, or unsafe ash tree removed. A free permit is required before the work can be carried out.
Do not wait until the tree becomes dangerous before taking action.
In addition, the City offers branch collection services from April through November to help residents dispose of debris from felled trees.
Plant
Diversifying tree species is one of the best strategies for ensuring the resilience of urban forests.
The Town encourages residents to plant trees suited to local conditions in order to replace lost ash trees and contribute to the area’s biodiversity. A grant program for tree purchases is available to help residents meet their mandatory ash tree replacement requirements.
Why do your part?
• Ensure the safety of citizens and property;
• Mitigate the impacts of the emerald ash borer in the region;
• Maintain the environmental benefits of the urban forest;
• Preserve the quality of the landscape and the living environment;
• Promote biodiversity and the resilience of the forest cover;
• Help reduce heat islands and air pollution.
Eligibility and forms
Visit the “Documents to Download” section to learn about the eligibility criteria for the municipal program and access the required form.
Tree planting in public spaces
To compensate for the loss of ash trees in the streets and parks, the City of Rosemère is continuing its efforts to plant trees of various species throughout its territory.
This initiative aims to increase biodiversity, ensure the renewal of the urban forest, and maintain the many environmental benefits it provides to residents.
suggestions?
The Town remains on the lookout for initiatives, projects, and programs that can help protect and revitalize our urban forest.
Working together for a healthier urban forest.
