The City of Mississauga is conducting an aerial spray this spring. The spray will help to manage high levels of fall cankerworm and gypsy moth caterpillars and prevent tree loss. The seasonal spray window is set for April 23 to June 10, 2018, between 5 and 7:30 a.m. The spray area consists of private and public land in Wards 1, 2, 6, 7, 8 and 11 and is roughly 1,940 hectares (4,794 acres), equivalent to approximately 1,552 football fields. 

“The tree canopy is an important part of Mississauga, providing countless benefits to the community and environment. Preserving, protecting and growing the tree canopy remains an important focus for the City,” said Jodi Robillos, Acting Director of Parks and Forestry at the City of Mississauga. “Over the last few years, the City has been able to control fall cankerworm and gypsy moth caterpillar populations using Integrated Pest Management (IPM) measures, such as tree banding, tree injections, ground spraying and egg scraping. However, in certain areas of the city, these methods alone are no longer sufficient. We’ve put forward a comprehensive plan that will treat areas expected for severe leaf loss.

”As fall cankerworm and gypsy moth caterpillars begin to grow, they eat a lot. They have the ability to strip trees of all of their leaves, leading to tree weakness and potential disease.

“Based on data collected for fall cankerworms and gypsy moths, 2018 populations are expected to increase in a few areas of Mississauga, mostly along the Lake Ontario shoreline and Credit River Valley,” said Jamie Ferguson, Aerial Spray Project Lead for the City of Mississauga. “The City opted to conduct an aerial spray treatment as an effective and proven method for controlling fall cankerworm and gypsy moth populations. This is in addition to implementing other Integrated Pest Management measures. Spray dates are dependent on leaf and caterpillar size and weather conditions. Past records indicate the spray will most likely occur in the first two to three weeks of May.

”The City has contracted Zimmer Air Services to implement the spray. The spray will happen over a three-day period, with a total of two spray applications being completed. Two helicopters will fly about 15 to 30 metres above the treetops to complete the spray. Spraying is weather dependent and will only be done under the right conditions. As a result, specific spray dates are chosen 48 hours in advance and can be cancelled if weather conditions change. The City will issue communications to the public 48 hours before each treatment and provide up-to-date information through 3-1-1 and online at The spray may be cancelled up to 12 hours in advance if weather conditions change.

The aerial spray will use the biological control treatment Bacillus thuringiensis subspecies kurstaki (Btk). The spray will produce fine droplets that are small enough to stick to leaves of trees. Btk is a naturally occurring bacterium found in soil and has been approved by the Pest Management Regulatory Agency, an agency of Health Canada, for aerial use over urban areas. Btk is an effective pesticide that has been has been used globally for more than 30 years to successfully manage cankerworm and gypsy moth caterpillar populations.“

The Region of Peel – Public Health does not expect any human health impacts from Btk aerial spraying,” said Dr. Jessica Hopkins, the Region’s Medical Officer of Health. “While no special precautions need to be taken, residents may consider remaining indoors, washing their hands, covering lawn furniture, pools, BBQs and rinsing with water after the spray.”

In 2006 and 2007, the City conducted an aerial spray program to mitigate gypsy moth populations. Since then, the City has continued to monitor and manage pests for City-owned trees. The total spray area in the 2006/2007 program covered approximately 800 hectares, the majority of which was City-owned parkland and woodlots.

The City has been working with other municipalities (Oakville and Hamilton), Regional partners (Peel Public Health and Peel Regional Police) and Provincial agencies (Ministry of Transportation, Ministry of Natural Resources and Forestry, Ministry of Environment and Climate Change) to finalize spray details.I

In the weeks leading up to the spray, residents in the defined spray zone area will be contacted by the city with further details.

To find up-to-date information on how to control fall cankerworms and gypsy moths on your property, aerial spray details such as road closures, spray dates, times and locations, call 3-1-1 or visit to also sign-up for email alerts. Residents with specific medical or health concerns regarding the spray can call Peel Public Health at 905-799-7700.

Parks and Forestry staff recommended an aerial spray program be implemented where severe defoliation was expected. This recommendation was adopted at Council on November 22, 2017. The $1.9 million aerial spray program, funded by the City, will target fall cankerworm and gypsy moth caterpillars on both City and private property in specified areas forecasted for severe defoliation.

Mississauga Writers Group

The Mississauga Writers Group this year has initiated a project to publish an anthology with the theme  "Save the Earth - it’s in your hands".   We are asking youth and our local writers to write about the earth sharing why they love the earth, what they can do to help save it and take care of it.

We would really love to see writing - poems, prose or short stories from our residents featured in our upcoming Mississauga Writers Group anthologies.  All youth are also welcome to submit their work for consideration into the anthology.  Our aim this year, in addition to our regular anthologies, is to provide our youth with opportunities to get published and have their voices heard!   

Click on the link below to view the flyer with more information about the project.

Save the Earth (pdf)


Community Information

Older Adults

Find out what's going on in the City, the Older Adult Advisory Panel (OAAP), Mississauga's path to Age-Friendly City designation and more. 

Info for new residents...

Welcome to Mississauga, Canada's 6th largest city and home to 734,000 residents representing cultures from around the globe.  There are many services and programs to explore.


Visit your local library or go on-line and put an item on hold.  Ward 8 has 2 libraries - one at South Common Community Centre and the other at the Sheridan Centre.


Get on a Miway Bus with PRESTO and avoid January 29 Fare increases

Consider switching to PRESTO when you board a MiWay bus as of January 29, 2018 and you can avoid paying more for your ride.

Most of MiWay’s fares including PRESTO fares will be frozen as of January 29, 2018, with the exception of cash fares and paper tickets.

“We recognize the need to balance the cost of transit with our goal to increase ridership in our City,” said Geoff Marinoff, Transit Director.  “We encourage riders to join in the movement of using PRESTO. It’s so easy to load, tap and ride with PRESTO which makes up 64 per cent of MiWay fares, up four per cent from last year at this time. Freezing PRESTO fares will continue to support PRESTO use and our ultimate goal to eliminate paper tickets.”

Marinoff added that in 2018, MiWay will continue to invest in its transit system to allow increases in service levels and frequency of buses.

2018 Infrastructure Brochure

The Infrastructure Brochure has been helpful in understanding what infrastructure the City is responsible for building and maintaining as well as the level of funding received from senior levels of government.     

Pet Licensing

 Beginning July 4, 2017, two year pet licences will be available by phone, mail or in person at our Animal Services shelter. Two year licences can't be purchased online.  

Wildlife in Mississauga

 Wild animals are commonly spotted throughout Mississauga. Click on the link below to learn how you can protect yourself, your family and your property while avoiding animal conflicts.