2005 Schedule of Adult Mosquito Control throughout Southern Manitoba under Ministerial Order

Several communities in southern Manitoba were issued a Ministerial Order in 2005 to undertake adult mosquito control to prevent or alleviate the threat of West Nile virus to human health. The Orders required that adult mosquito control be undertaken within a specific community and approximately a three kilometer radius zone around the community.

Adult mosquito control can be completed when weather conditions are conducive, i.e. when temperature is greater than 13 degrees Celsius and wind is less than 15 km/hr. If weather conditions are not conductive to adult mosquito control on the identified night, alternate arrangements will be made to undertake adult mosquito control usually the next consecutive night, as weather permits.

Health Canada finds the ultra-low volume application of malathion a safe practice for the control of adult mosquitoes that pose a nuisance or public-health hazard. However, general precautions are suggested any time pesticides are used including:

  • closing all doors and windows,
  • avoiding trucks while spraying is underway,
  • turning off fans and air conditioners or setting them at exhaust,
  • removing clothes and children’s toys from outdoor areas,
  • washing any household items or toys left outside before using them, and
  • ensuring fruits and vegetables are washed.

The following table indicates the dates on which communities issued an Order had undertaken adult mosquito control, as well as treatment dates.

Community under Order Areas within a 3 km Extended Treatment Zone* Date of Treatment

City of Winnipeg

RM of Springfield
RM of Macdonald
RM of Ritchot

See City of Winnipeg Insect Control Branch website

RM of West St. Paul

RM of East St. Paul
RM of St. Andrews
RM of St. Clements
RM of Rosser
RM of Rockwood

16-Jul-05 (RM of West St. Paul only)

25-Jul-05  / 26-Jul-05 (RM of West St. Paul and 3 km extended treatment zone)


13-Aug-05 / 14-Aug-2005

Town of Carman

RM of Dufferin

23-Jul-05 / 24-Jul-05


City of Winkler

RM of Stanley




RM of East St. Paul

RM of Springfield
RM of St. Andrews
RM of St. Clements
RM of West St. Paul


* Areas identified may fall partially or completely within an approximate 3 km extended treatment area of a community. Contact your municipal office if you are uncertain as to whether your residence falls within the extended 3 kilometer treatment area.

For WNV health concerns, contact your doctor or call:

Health Links - Info Santé
(Winnipeg) or toll-free 1-888-315-9257