press release

Mosquito Larviciding Begins June 29

Point Edward, ON – Catch basin larviciding, designed to control mosquito larvae and reduce the incidence of West Nile virus (WNV) in Lambton County, begins Monday, June 29, 2020.

Mosquito larval surveillance has indicated the presence of mosquito larvae in catch basins across Lambton County.

Larviciding is only one measure to impede mosquito breeding and control adult mosquito populations. Lambton Public Health (LPH) encourages residents to:

  • Remove stagnant water around their property
  • Keep eaves clear of debris
  • Drain water from containers or toys

Increase your level of personal protection against mosquitoes by using insect repellent containing DEET or Icaridin during peak times, or in locations where mosquitoes are active.

Safe Disposal of Dead Birds

There is no collection of dead bird reporting for West Nile virus surveillance.

If residents find a dead bird on their property, dispose of it properly. Do not use bare hands. Wear gloves or pick up the dead bird with a bag; then discard the bag and the bird into a garbage container. Dispose of the bird with your regular garbage.

Mosquito trap surveillance and testing begins in early July. Positive findings will be reported and health system monitoring of human cases is ongoing.

For more information about WNV, or dead bird disposal, call the West Nile virus Information Line at 519-383-3824, toll-free 1-800-667-1839 ext. 3824 or visit

Larvaciding Process

The St. Clair Region Conservation Authority has been contracted by Lambton Public Health to conduct larval surveillance and apply larvicide under the Ministry of Environment and Climate Change larviciding permit. Methoprene (Altosid) in pellet formulation (Pest Control Products Act #21809) will be placed in the catch basins.

Vehicles used for larviciding will be equipped with rooftop, flashing yellow light, West Nile virus signs, and a “Makes Frequent Stops” caution sign. Caution is encouraged.


Please contact:

Lori Lucas
Supervisor, Health Protection
County of Lambton