Mosquito Control Program

Peterborough, ON – The City of Peterborough, under the direction of the Lakelands Public Health Medical Officer of Health, will carry out a mosquito larval control program from Wednesday, June 3, 2026, to Monday, August 31, 2026, to help reduce mosquito populations and prevent the spread of West Nile virus.

The program targets mosquito larvae before they develop into biting adult mosquitoes. Larvicide will be applied by hand to catch basins and storm drains in urban areas throughout the City.

The larvicides being used, Altosid Pellets (PCP No. 21809) and Altosid Granules (PCP No. 22676), are registered and approved by the Government of Canada for mosquito larval control. All applications will be completed by licensed Ministry of the Environment, Conservation and Parks applicators or trained technicians.

Residents with questions about treatment dates or locations can call City Hall at 705-742-7777.

For general information about West Nile virus, contact Your Local Health Connection at 1-844-575-4567 or visit lakelandsph.ca/health-topics/insects-animals-and-bites/west-nile-virus.