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 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.”
“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.” Continue reading City’s 2018 Aerial Spray Program Takes Flight to Prevent Tree Loss