Mosquitoes

• Edmonton mosquito number rising after rainy weekend — and more expected

  A weekend of torrential rain, followed by warn and sunny weather, has created perfect conditions for Edmonton's already health mosquito population to explode.

  Environment

  Jun 24
  
• A soggy June could mean mosquitoes ‘plaguing’ many Canadians, experts say

  Experts say that the elevated flooding and rainfall can trigger a more intense mosquito season that is anticipated to last longer than previous years.

  Weather

  Jun 22
  
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• Mosquito study extends to North Shore this summer

  As the weather gets warmer and climate change affects how long hot and dry weather continues, more mosquitoes can complete their life cycle quicker and the population can grow.

  Health

  Jun 17
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• Near-record rainfall in Calgary prompts soaring number of complaints about mosquitoes

  With more than twice the normal monthly amount of rain falling on Calgary in July of this year, outdoor enthusiasts in the city say there are a lot more mosquitos too.

  Environment

  Aug 5, 2025
• West Nile virus is back. Where it’s been found, and what you should know

  West Nile has been reported in mosquitoes found in Toronto, York Region and Niagara Region so far, but doctors are cautioning human cases could come soon.

  Canada

  Jul 23, 2025
• Quebec issues warning about diseases from ticks, mosquitoes

  Quebec's Health Department is warning people to stay vigilant about tick and mosquito bites as summer begins.

  Health

  Jun 20, 2025
• Calgary researchers using ‘citizen science’ for a study on invasive mosquitoes

  Calgary researchers are using 'citizen science' to help determine how an invasive species of mosquito, which is a carrier of the West Nile virus, can survive Alberta's winter.

  Science

  May 28, 2025
• Warmer summers could mean Zika and dengue move into Canada, experts warn

  Zika virus and dengue fever are mostly found in tropical locations, but insect and health experts are warning climate change could bring them to Canada.

  Canada

  Sep 25, 2024
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• Ottawa resident dies from rare and deadly mosquito-borne virus

  A rare and deadly mosquito-borne illness, the eastern equine encephalitis virus (EEEV), has claimed the life of an Ottawa resident, marking the city's first confirmed human case.

  Health

  Sep 12, 2024
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• Toronto reports 1st probable human case of West Nile virus this year

  Toronto Public Health says in a news release on Friday that an adult resident contracted the virus.

  Health

  Aug 16, 2024