How do you keep track of the mosquito population?

We operate a variety of mosquito traps that are dispersed throughout the county and its municipalities. We collect these traps on a daily basis, excluding weekends and holidays. Traps are counted and the numbers of individual species are recorded. Pools of mosquitoes are then tested for the presence of harmful diseases like West Nile virus.

To see average trap counts for Williston, Ray, and Grenora, visit our Trap Counts webpage.

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