Notice of Pesticide Use

Between May 23, 2022 and October 31, 2022 a mosquito larviciding program will be conducted to reduce mosquito populations. This is being done under the authority of the Medical Officer of Health under Ontario Regulation 199/03 and by permit approval of the Ministry of Environment, Conservation and Parks in the following communities: Windsor, Essex, Tecumseh, Lakeshore, Leamington, LaSalle, Amherstburg, and Kingsville.

Larviciding will take place to reduce populations of mosquito larvae and to reduce the risk of the West Nile Virus to persons in Windsor-Essex County.

The biological larvicide Vectobac 200G (granular, PCP#18158) and Vectobac 1200L (liquid, PCP #21062) may be applied to standing water that cannot be drained. The larvicide Altosid Pellets (pellet, PCP #21809) will be applied to catch basins. Only areas within 2 kilometres of urban communities will be treated.

All larvicides will be applied by Ministry of Environment, Conservation and Parks licensed applicators or trained technicians.

For more information, please call the Windsor-Essex County Health Unit at 519-258-2146 or 1-800-265-5822. You can also visit the website at