Treatment areas

This year’s management will focus on areas in Mississauga that are considered higher risk for defoliation. A variety of management strategies will be implemented for trees in certain City parks and along certain streets including tree injections, ground sprays, egg mass scraping, burlapping and pheromone traps. Not all methods will be conducted in each treatment area.

Portions of Wards 3, 4, 5, 7, 8 and 9 have been identified to receive treatment in 2020 and are depicted on the following maps. Street trees in these areas will be treated with injections only. Park trees will be treated with a combination of injections (Mississauga Valley Park, Paul Coffey Park and Sugar Maple Woods) and ground sprays (Applewood Hills Park, Garnetwood Park and Huron Park).

Not all trees on the indicated streets will be treated, nor will all trees in indicated parks. Only trees that have been identified to be at high risk of defoliation in 2020 will receive treatment.

Treatment timing is dependent on a number of ecological factors (e.g.: leaf size, caterpillar size, and weather) but is anticipated to occur during the month of May.

Where can I find updates on when work is taking place?

Updates on timing will be posted frequently to this page during the month of May. Residents are encouraged to sign up for news alerts by joining our Tree Pest Management mailing list, by following us on social media (Facebook, Twitter and Instagram).

Frequently asked questions

We have prepared an FAQ document to answer some common questions that residents may have.