Mosquito Fogging Begins Thursday Night


Winnipeg City Councillor Kevin Klein serving Charleswood-Tuxedo-Westwood


In response to a recent increase in adult nuisance mosquitoes, the City of Winnipeg is going to begin its residential adult nuisance mosquito fogging program on this evening. Fogging will begin Thursday at 9:30 p.m., weather permitting.

Based on the Adulticiding Factor Analysis (AFA) factors, which include trap counts, the city-wide rating moved from MEDIUM to HIGH on Wednesday, July 22, 2020. Today, the city-wide trap count is 59.

The criteria that must be met to trigger a nuisance mosquito fogging program are set out by the City of Winnipeg Adult Nuisance Mosquito Control Policy and the Provincial Pesticide Use Permit:


Residential fogging is directed by two factors:

  1. The Provincial Pesticide Use Permit – The city wide average trap count must have two consecutive nights of 25 or more adult female mosquitoes.  Other municipalities in the Province have the same threshold as set by the Province.

  2. The Council Approved Adult Mosquito Policy (2007) - It requires that one or more quadrants of the city must be in the range of 100 adult female mosquitoes and that the Adulticiding Factor Analysis must he HIGH which means conditions are favourable for sustained mosquito activity.

Daily public service announcements.


Public Service Announcements (PSAs) will be released daily at least eight hours in advance of planned fogging. These PSAs will identify which Insect Management Areas are scheduled for treatment that night, weather permitting. Fogging will be carried out until further notice on a daily basis from 9:30 p.m. to 6:30 a.m. Fogging will not occur when temperatures are below 13 degrees Celsius and/or wind speeds are not conducive to fogging.

The insecticide DeltaGard® 20EW will be used in accordance with federally approved label directions and will be applied by licensed applicators. This insecticide has been approved for use in Canada by Health Canada’s Pest Management Regulatory Agency.

Register for notification


The City offers an automated telephone and email notification system. Residents who register for this service will receive daily phone or email notifications for adult mosquito control activities. Residents can register for notification online or by contacting 311.

Buffer zones


Residents can apply for a 90-metre buffer zone in order to exempt their property during an adult nuisance mosquito control program. Those who want to register must provide identification that ties the registrant to the address being registered for a buffer zone. A photocopy or scanned document such as a driver’s licence or utility bill will suffice as acceptable identification proving primary residence.

All buffer zones will be respected. Crews will ensure that the sprayer is not treating within a 90-metre radius of a registered property on the front street, side street, and rear lane.

Due to COVID-19, you may not register for a buffer zone in-person. Buffer zone applications must be received through one of the following options:

  1. 311 online service request

  2. Email to 311@winnipeg.ca

  3. Fax to 311

  4. In writing to the Insect Control Branch at 3 Grey Street, Winnipeg MB R2L 1V2

Property owners are encouraged to eliminate standing water on their properties by taking the following steps:

  1. Dump It! - containers

  2. Drain It! - eavestroughing or unused containers

  3. Cover It! - rain water collection containers

  4. Fill It! - low-lying areas

  5. Treat It! - biological larvicide


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© KEVIN KLEIN #ForABetterWpg

This account is NOT funded by the City of Winnipeg and does not reflect the City of Winnipeg policy.