What is the City Doing?
The City has contracted Morrow BioScience Ltd. to conduct a nuisance mosquito control program in high mosquito density areas throughout the city. This environmentally-sensitive program is designed to reduce nuisance mosquito populations to tolerable levels by aiming to control mosquitoes at the larval stage of the mosquito life cycle.
A regional Mosquito Control Hotline has been established to take calls regarding mosquito nuisance concerns. The program depends on the public to inform when and where they are experiencing concerns about mosquitoes.
To report mosquito-related concerns, call the Mosquito Hotline at 604-432-6228. The phone line, operated by Morrow BioScience Ltd., is available 24 hours a day and all inquiries are responded to within 24 hours of receiving messages.
The primary emphasis is to target mosquito larvae confined to a specific location (such as stagnant bodies of water including sloughs, seasonal wetlands, detention ponds, and/or roadside ditches). The program involves:
- Data collection
- Treatment of mosquito-producing sites
When sites meet a population threshold, specific identified surface water is treated with environment-friendly larvicide called Bacillus thuringiensis israelensis (Bti). Bti-coated corn pellets are distributed by hand or backpack spreader via foot or boat access.
Nuisance mosquito species are not typically associated with the spread of West Nile virus.
It is important to keep residential or business property free of standing and stagnant water. This helps reduce the number of mosquitoes in your neighbourhood as most mosquitoes fly about one to three kilometres from their breeding site. Follow these simple practices to eliminate mosquito breeding sites on your property.
- Old tires should be disposed of or moved inside. Do not let outside containers, equipment, or debris collect water - recycle, drill holes in, or overturn them when not in use.
- Eavestroughs should be kept clean to allow proper water drainage. Flat roofs should be kept free of standing water.
- Storm drains and lawn basins should be kept free of debris such as yard waste, lawn cuttings, and leaves.
- Roof downspouts should be properly designed and maintained to prevent standing water.
- Leaky faucets should be repaired to prevent water build-up or pooling on the ground.
- Windows and attic vents should be adequately screened and maintained to keep mosquitoes out of your home.
- Stagnant water located in birdbaths should be changed weekly. Rain barrels should be covered with fine mesh and wheelbarrows overturned when not in use.
- Ponds should be maintained. Using pumps or fountains to keep water circulating reduces mosquito breeding.
- Swimming pools should have operating chlorine and circulation systems. Wading pools should be overturned when they are not in use.
- Compost should be turned frequently to keep well-aerated.
Mosquitoes are most active between dusk and dawn. If you are outside in the evening or early morning, minimize your exposure to bites by:
- Using mosquito netting to protect infants when in an unscreened structure or when sleeping outdoors.
- Wearing long sleeved shirts and long pants.
- Wearing light-coloured clothing. Mosquitoes are attracted to dark, intense colours.
- Wearing clothing made of tightly woven materials that will keep mosquitoes away from the skin. The use of mesh “bug jackets” or “bug hats” is also recommended during extreme conditions.
- Considering an insect repellent containing DEET or other approved ingredients.
For more information on mosquitos and mosquito management in the City, please contact our 24/7 hotline at: 604-276-4316