Mosquito Control

Fogging for Mosquito control will occur Thursdays at dusk (weather permitting)

Residents who do not wish to have their property sprayed are asked to inform the LGD of Pinawa Municipal Office, in writing, on an annual basis.

Frequently Asked Questions

If a fogging program is required, buffer zones will be respected and crews will ensure that the sprayer is not treating within 90 metres on each side of a registered property on the front street, side street and rear lane. 

Residents who do not wish to have their property sprayed should inform the LGD of Pinawa Town Office, in writing, on an annual basis.   For more information about registering for a buffer zone, please see contact the Municipal Office at 204-753-5100.

Updated information on the risk of West Nile virus will be provided to the public throughout the summer. 

Manitobans can check the provincial government’s West Nile virus website regularly for up-to-date data and information.

If the Town of Pinawa is ordered by the Provincial Authorities to conduct a fogging for mosquitoes – there is not a lot of notice. 

The Town would place advertisements on www.pinawa.com and also on the Municipal Facebook page as soon as notice was received. 

Fogging usually starts at Dusk on the dates specified, weather permitting. 

If weather conditions do not allow fogging to take place when planned it will be pushed forward to the next scheduled night. 

The product Deltagard, which is registered for mosquito control, will be used. 

Fogging would take place in the Town of Pinawa as well as the community of Awanipark.

DeltaGard20EW is an insecticide that is newly registered for use in Canada for wide area mosquito control. 

It belongs to the pyrethroid family. Pyrethroids are the man-made versions of pyrethrins, natural insecticides from chrysanthemum flowers. 

Deltamethrin, which is the active ingredient of DeltaGard 20EW, has been used for over 15 years world-wide and has the full recommendation by WHOPES (World Health Organization Pesticide Evaluation Scheme).  

As a class, pyrethroids are the most widely-used insecticides for controlling adult mosquitoes by professionals in the world.

Malathion is no longer an option for adult mosquito control. 

The Town has been working closely with mosquito control suppliers in the past few years to bring new products to Canada. 

DeltaGard is a reduced risk product with lower application rates and reduced risk for the environment and public.

Based on the most current data for Deltamethrin which is the active ingredient in DeltaGard 20EW, the following information is available:

  • Cancer classification – Not likely to be a carcinogen to humans by all routes of exposure.
  • Not genotoxic or mutagenic.
  • Not a development or reproductive toxicant.
  • Low skin absorption.

Whenever possible, remain indoors during and immediately after spraying.

To reduce exposure, the following actions can be taken during an adult mosquito control program:

  • Close all windows and doors.  Turn off air conditioning units and close vents to circulate indoor air before spraying begins.
  • Bring laundry, toys and pets indoors before spraying occurs.
  • Cover swimming pool surfaces when it is feasible.
  • Wash homegrown fruit and vegetables with water before cooking or eating them.
  • Rinse play equipment with water after spraying is finished.

Based on the most current data, it is not expected that people will experience any symptoms when DeltaGard 20EW is sprayed for adult mosquito control.  

If the precautions to minimize exposure mentioned above are taken, it is less likely that you would be overexposed to DeltaGard 20EW.  

However, if for some unforeseen reason you have been overexposed to DeltaGard 20EW, the most likely exposure is from skin exposure which may cause brief sensations such as tingling, burning, itching, numbness.


There are many species of mosquitoes but they mainly fall into two categories, namely the Culex Tarsalis mosquitoes and nuisance mosquitoes. 

All are a nuisance of course, but it is the Culex Tarsalis mosquito that we need to be concerned about, because it is this species of mosquito that can transmit the West Nile Virus.

In addition to this, Manitoba Health would set up a number of mosquito traps in our community and test them for the Culex species on a regular basis. 

This type of monitoring will still continue.

Reduce standing water by:

  • Regularly cleaning your eaves troughs, pool covers etc.
  • Cleaning and emptying bird baths on a weekly basis.
  • Ensuring that rain barrel openings are covered with screening.
  • Checking that your yard is clear of debris, toys, bowls or tires that can hold water.
  • What is fogging and how is it done?