City of Cockburn, PO Box 1215, Bibra Lake DC, Western Australia, 6965
Telephone: (08) 9411 3444

For information on the Zika virus please refer to the Healthy WA website.


Mosquito Management

The City's Health Service conduct routine trapping, using dry ice (carbon dioxide) and light traps between October and March. Trap sites include Lake Coogee (North), Lake Coogee (East), Thomson's Lake (West), Bartram Road Buffer Ponds - Onsite and Offsite (Thomsons Lake East), Kogolup Lake (East), North Lake Road (Wetland), Bibra Lake (East), Market Garden Swamp (West). Health Services also respond to enquiries and requests regarding increase of mosquito numbers in residential areas. Traps can be set in these areas to establish numbers and species which can provide information as to specific types of water bodies (natural or man made) that should be further investigated. 

Why do Health Services monitor mosquito numbers and species?

Although most mosquitoes will be considered a nuisance, entering houses and buzzing in your ear whilst searching for a blood meal, some species are known vectors of Ross River Virus (RRV) and Barmah Forest Virus (BFV). RRV and BFV can impact significantly on an infected persons lifestyle. Symptoms can include painful and/or swollen joints, sore muscles, aching tendons, skin rashes, fever, tiredness, headaches and swollen lymph nodes. It is Health Services aim to reduce annual reported cases of RRV and BFV within the City by introducing sound management principles and practices.

Why do mosquitoes need a blood meal?

It is only the adult female mosquito that requires a blood meal (protein) to produce eggs. Some mosquito species can fly up to 50km in search of a blood meal, most species average up to 2-5km. Mosquitoes are attracted to carbon dioxide (exhaled air), warmth, body odour, perspiration and light.

Do Health Services spray the lakes?

The City's lake systems are not only recreationally and aesthetically valuable but of significant environmental importance. For example Thomson's Lake is a RAMSAR listed Wetland of International Importance (migratory birds). Thomson's Lake is one of 19 wetlands in Beeliar Regional Park and is the largest lake in the regional parks eastern chain of wetlands. Collectively the lakes form one of the most important wetland systems in the Perth metropolitan area. It is for this reason the Citys Health Service does not chemically treat any of the natural lakes and ecosystems.

What about man made water bodies and structures?

Health Services are actively investigating, mapping and where necessary treating mosquito breeding man made water bodies with target specific and environmentally sensitive treatment options. 

Health Services also focus on residential swimming pools that have not been maintained (filtration and chlorination) and provide breeding grounds for mosquitoes. With the licence acquisition of Nearmap mapping system (updated monthly), the City's Health Service identify and contact property owners of unmaintained pools and require action to be taken.

What can I do to protect myself and stop mosquitoes breeding around my home?

  • Reduce outdoor activities during high mosquito activity periods (dawn and dusk)
  • Cover up by wearing light coloured long sleeve shirts and long pants that are loose fitting
  • Apply personal insect repellent containing DEET or Picaridin if possible
  • Ensure fly screens to doors and windows are fitted and maintained
    Check your property for potential breeding sources:

    • Empty pot plant bases weekly or fill the base with sand to absorb water;
    • Bromeliads and other water holding plants should be washed out weekly;
    • Clean roof gutters out regularly and trim back trees which can block gutters;
    • Ensure rainwater tank overflow pipes are screened and access covers fitted securely;
    • Keep swimming pools maintained;
    • Ensure plumbing and vents to septic tanks are screened;
      Birdbaths and ornamental pools should be washed out weekly.
    • For further information regarding the Citys mosquito monitoring and management program please call Health Services on 9411 3589.
  • Instructions on how to make you own home made mosquito trap

For further information please refer to the following Healthy WA links:




Avoid Being Bitten - Take Care

NOTE: This ALERT is to be used as a guide to gauge your activities. Low population numbers does not indicate low risk of acquiring a mosquito borne virus, IT ONLY TAKES ONE.

Wear long sleeved shirts, pants & apply insect repellent whenever outside or in mosquito breeding environments to reduce risk of acquiring Ross River Virus or Barmah Forest Virus.

Need more info?

Phone: 9411 3444

You may also like to visit this link:

Department of Health WA - Environmental Health Hazards Branch: Mosquitoes

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