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City of Winnipeg
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Insect Control

AFA Level
Adulticiding Factor Analysis (AFA)
Current Nuisance Mosquito Control Measures

This website is updated regularly to provide Winnipeg citizens with the most current information available. Please keep in mind that mosquito activity is dependent on environmental conditions. Significant changes in environmental conditions may often require corresponding changes in our scheduling of day-to-day operations.

The Current AFA Level is: LOW

AFA Factors Current Conditions
Soil Moisture Conditions
  • Soil moisture conditions are below normal.
Forecasted Rainfall
  • Approximately 10 - 25 mm of precipitation has fallen in the last 7 days.
  • There is an expectation of rainfall in the next 7 days.
Trap counts (New Jersey Light Traps)
  • The NJLT average for August 23, 2019 is 6.
Current Status of Adult Mosquito Population
  • Small population of adult summer nuisance mosquitoes.
Average Cumulative Temperatures
("Current Degree Model")
  • Temperatures are favourable for normal larval development.
Status of Larval Development Sites
  • Current emergence of summer species in low numbers.

Please refer to the Adult Mosquito Control Policy, which includes the Adulticiding Factor Analysis (AFA) Guidelines, for more details.

Last update: August 23, 2019
Contact Us
Bugline: 311
or 1-877-311-4WPG
Media inquiries: 204-986-6000

Administrative Office and Research Laboratory
1539 Waverley Street
Winnipeg MB R3T 4V7

Operations Base
3 Grey Street
Winnipeg MB R2L 1V2
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