Mosquito populations are a concern during the summer months, especially after periods of heavy rainfall. Each hatch of mosquitoes will generally last for approximately three weeks. The numbers will start to drop off after that period unless another period of a heavy rainfall occurs. If conditions are dry, the number of mosquitoes will stay reasonably low.
Strathcona County does not currently control mosquitoes on any County land. The County does permit the City of Edmonton to treat some areas of County land outside of Sherwood Park as part of the city’s mosquito control program. For more information on the City of Edmonton mosquito control program, including a map showing the boundaries of the program, please visit the City of Edmonton website.
Frequently Asked Questions
1. Why doesn't the County have a mosquito control program?Permanent link to Why doesn't the County have a mosquito control program?
Mosquito control programs may be beneficial to reduce the number of nuisance mosquitoes in localized areas, but they have a limited effect over large areas. Another drawback to mosquito control programs is that a large number of the mosquito's natural predators can be destroyed in the process. This could ultimately result in higher numbers of mosquitoes.
2. Where does the City of Edmonton have permission to control mosquitoes in the County?Permanent link to Where does the City of Edmonton have permission to control mosquitoes in the County?
The city has permission to conduct mosquito control activities in areas outside of Sherwood Park, including industrial areas and major highway ditches within the County. This area does not include urban residential areas. Visit the City of Edmonton website to view the program boundaries.
3. How does the City of Edmonton notify County residents about their program activities?Permanent link to How does the City of Edmonton notify County residents about their program activities?
Edmonton is required to advertise planned mosquito control activities on public land in the Sherwood Park News. For more information about the city’s program, please visit their website.
4. How can I manage mosquitoes on my property?Permanent link to How can I manage mosquitoes on my property?
- Reduce or eliminate standing water, including eavestroughs, children’s toys and flower pots
- Clean ponds and pools that do not have a circulating pump and birdbaths every four days
- Clean and chlorinate pools and hot tubs
- Cover rain barrels with a screen or fine mesh.
- Keep ornamental ponds, pools and dugouts free of vegetation around the edges. Fish that eat mosquito larvae can be added to bodies of water
- Cut tall grass, weeds and underbrush to remove areas of shade and high humidity that mosquitoes need for shelter
- Landscape yards and gardens so water does not sit in puddles
- Repair any leaking pipes and faucets and check for condensation coming off air conditioner
5. What control products and strategies can homeowners use?Permanent link to What control products and strategies can homeowners use?
- Agitation and aeration of a pond changes the water surface tension and discourages mosquitoes from laying eggs.
- A larvicide specific to mosquito larva is available at most hardware and garden stores. It can be sold under various names, including: Larvicide, Aquabac or Bti. The product can be used in any habitat that supports mosquito larvae.
- If you do decide to use a control product, choose one that is specific to mosquitoes. It is not beneficial or desirable to kill all the insects in the area. Without natural predators, mosquito populations may increase. The larval stage is the best time to control mosquitoes.
- Appropriate mosquito habitats to use control products include, but are not limited to: woodland pools, dugouts, tree holes, temporary pools, artificial containers, and floodplains. Be sure to follow the instructions on the label to get the best results, and use the product safely.
6. Do lakes and wetlands add to the mosquito population?Permanent link to Do lakes and wetlands add to the mosquito population?
Natural wetlands and stormwater management facilities (the lakes and wetlands in Sherwood Park) do not produce the large amounts of mosquitoes that people might think. These water bodies contain large numbers of predators that eat mosquitoes, such as: dragonflies, birds, amphibians and fish. Mosquitoes do not live in open water where wind can produce waves. They need still, stagnant water.
7. What can I do to minimize mosquito bites?Permanent link to What can I do to minimize mosquito bites?
- Use a mosquito repellent that contains DEET (follow the manufacturer's instructions for use)
- Avoid being outdoors when mosquitoes are most active (most mosquitoes are active at dusk and after dark)
- Take steps to manage mosquitoes on your property
How is West Nile Virus transmitted?
West Nile Virus is transmitted from infected birds to people by mosquitoes. A mosquito that bites an infected bird can pass the virus along when they bite another bird or animal. Of the many different species of mosquitoes found in our area, fewer than one per cent may carry the virus, and fewer than one per cent of people bitten by a mosquito carrying the virus will develop symptoms. It is otherwise very difficult to get this virus directly from a sick animal or bird.
9. Where can I find additional information on West Nile Virus?Permanent link to Where can I find additional information on West Nile Virus?
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