Public Health - Vector Control
Cairns has a tropical climate with lush rainforests, mangroves and high rainfall, all of which contribute to ideal breeding conditions for mosquitoes. Mosquitoes are carriers of diseases such as Malaria, Ross River Fever, and Dengue Fever. Fortunately, none of these diseases are endemic to this area. However the frequency of international travel affords the perfect conduit for the entry of these diseases into this area.
The aim of this Unit is to reduce the numbers of mosquitoes and midges to an acceptable level and to assist in limiting the spread of vector borne diseases.
The main activities are:
- Proactive chemical spraying in known breeding areas for mosquito control
- Response to complaints of breeding
- Cooperation with TPHU in anti-Dengue Fever procedures
- Proactive on-site monitoring procedures to determine breeding sites and vector species
- Development of biological control measures, such as specific fish breeds, to lessen the reliance on chemical means of control of mosquito larvae
- Maintenance of a Mosquito Chemical Allergy Register.
Spraying for the control of adult mosquitoes is conducted prior to 8:00 am in order to minimise any contact between the general public and the chemicals being employed. No chemical treatment occurs within close proximity of those residents listed on the mosquito Chemical Allergy Register. The control of mosquito larvae and actioning of any complaints is dealt with during 'normal' business hours because of the decreased risk from the agents utilised for this purpose.
Health Services is currently developing a Vector Control Policy which, when implemented, will provide an integrated technology based program based on the latest principles of vector control and employing a wide variety of control measures. These will include:
- Chemical control for adults and larvae
- Biological control through specific fish breeds
Queensland Fisheries has issued a permit to Council for the release into selected waterways of specially bred fish to assist in the control of mosquito larvae. Initial studies have shown that these fish significantly decrease the incidence of mosquito larvae and have contributed to a decrease in the use of chemicals in these areas. Further breeding of different species is underway to widen the potential areas into which fish may be released to combat mosquito larvae.
For further information:
- Contact Cairns Regional Council on (07) 4044 3044
- Dengue Website
