Mosquitoes | Redland City Council

Redlands Coast has unique coastal and freshwater environments that provide ideal breeding conditions for mosquitoes. In addition to being a nuisance, some mosquito species can also transmit diseases such as Ross River or Barmah Forest viruses to the community. For this reason, Council’s Mosquito Management Program targets the mosquitoes that are capable of transmitting these diseases. 

The Mosquito Management Plan 2017-2024 provides a snapshot of the current status of the Mosquito Management Program and identifies strategies and potential opportunities for future planning.

Redland City Council's role in mosquito management

Redland City Council is committed to delivering a year-round, best practice mosquito management program that is safe for the environment and for residents, to manage mosquito numbers across Redland City.

Council's Mosquito Management Program involves regular monitoring of known mosquito breeding sites across Redland City, including coastal and wetland habitats. Treatments are conducted at these sites if breeding is identified, with additional surveys and treatments conducted in response to tidal inundation or rainfall events.

As part of Council’s surveillance program, regular light trapping for adult mosquitoes is also undertaken throughout Redland City. This allows Council to monitor adult mosquito numbers and determine the type of mosquito species impacting certain areas, so treatments can be targeted accordingly. 

Mosquito treatments

Elevated numbers of mosquitoes are currently being experienced across Redland City due to recent weather events including high temperatures and rainfall. These events, have provided ideal breeding conditions for the saltmarsh mosquito – Aedes vigilax. This mosquito has the ability to travel up to 50km a day, resulting in many suburbs across the city being impacted, particularly the Southern Moreton Bay Islands and southern suburbs such as Redland Bay and Mount Cotton.

Council’s Mosquito Management Team have been undertaking aerial treatments throughout the city in response to these elevated mosquito numbers. Aerial treatments predominately focus on coastal saltmarsh habitats found along the bayside, Southern Moreton Bay Islands, North Stradbroke Island and other smaller uninhabited islands, to specifically target the Aedes vigilax (saltmarsh mosquito).

Council conducts regular ground and aerial treatments for mosquitoes. These treatments target the newly hatched larvae (wrigglers) of mosquitoes before they can fly, as this is the most effective form of treatment. The diagram shows the optimal time to treat mosquitoes.

Mosquito Lifecycle

Under Council's Marine Park Permit, two chemicals are used for mosquito treatments. These are (S)-Methoprene, an insect growth regulator, and Bacillus Thuringiensis subspecies Israelensis (Bti), a bacterial agent that kills mosquito larvae via ingestion. These chemicals are safe to use, environmentally friendly and only target mosquito larvae.

Current mosquito aerial treatments

  • Aerial treatment: 22 February 2024: Victoria Point, Wellington Point, Macleay Island.
  • Aerial treatment: 21 February 2024: Wellington Point (Geoff Skinners Wetlands)
  • Aerial treatment: 14 February 2024: Victoria Point, Wellington Point.
  • Aerial treatment: 11 February 2024: Redland Bay, Victoria Point, Birkdale, North Stradbroke Island, Russell Island, Pannikin Island, Lagoon Island.
  • Aerial treatment: 01 February 2024: Redland Bay, Victoria Point, Wellington Point, Birkdale, North Stradbroke Island (Duck Creek), Garden Island, Pannikin Island, Long Island, Lagoon Island, Peel Island.
  • Aerial treatment: 29 January 2024: Victoria Point, Thornlands, Wellington Point, Russell Island.
  • Aerial treatment: 24 January 2024: Victoria Point, Thornlands.
  • Aerial treatment: 23 January 2024: Victoria Point, Wellington Point, Birkdale.
  • Aerial treatment: 17 January 2024: Wellington Point, Victoria Point, Redland Bay, Russell Island, Macleay Island.
  • Aerial treatment: 14 January 2024: Redland Bay, Victoria Point, Thornlands, North Stradbroke Island, Russell Island, Garden Island, Pannikin Island, Long Island, Lagoon Island, Peel Island.
  • Aerial treatment: 08 January 2024: Redland Bay, North Stradbroke Island, Pannikin Island, Long Island. 
  • Aerial treatment: 04 & 05 January 2024: Redland Bay, Victoria Point, Thornlands, Wellington Point, Macleay Island, Russell Island. 
  • Aerial treatment: 28 December 2023: Redland Bay, Victoria Point, Thornlands, Wellington Point, Birkdale, North Stradbroke Island (Duck Creek), Russell Island, Garden Island, Pannikin Island, Long Island, Lagoon Island, Peel Island. 
  • Aerial treatment: 18 December 2023: Birkdale, Russell Island, Lagoon Island. 
  • Aerial treatment: 16 December 2023: Redland Bay, Victoria Point, Thornlands, Wellington Point, Birkdale, North Stradbroke Island (Duck Creek), Russell Island, Garden Island, Pannikin Island, Peel Island, Long Island, Lagoon Island.
  • Aerial treatment: 5 & 6 December 2023: Redland Bay, Victoria Point, Thornlands, Wellington Point.
  • Aerial treatment: 02 December 2023: Birkdale, Russell Island, North Stradbroke Island (Duck Creek), Garden Island, Pannikin Island, Long Island.
  • Aerial treatment: 27 November 2023: Victoria Point, Russell Island, Lagoon Island.
  • Aerial treatment: 24 November 2023: Redland Bay, Victoria Point, Birkdale, Russell Island, North Stradbroke Island, Macleay Island, Lagoon Island, Peel Island, Long Island, Pannikin Island, Garden Island.
  • Aerial treatment: 02 November 2023: Thornlands, Redland Bay, Birkdale, Russell Island, North Stradbroke Island, Lagoon Island, Long Island, Pannikin Island, 
  • Aerial treatment: 03 October 2023: Thornlands.
  • Aerial treatment: 29 September 2023: Thornlands, Redland Bay, Russell Island.
  • Aerial treatment: 04 September 2023: Pannikin Island, Long Island, Lagoon Island.
  • Aerial treatment: 01 September 2023: Victoria Point, Wellington Point, Russell Island, Lagoon Island.
  • Aerial treatment: 16 August 2023: Redland Bay.
  • Aerial treatment: 09 August 2023: Redland Bay.
  • Aerial treatment: 07 August 2023: North Stradbroke Island, Russell Island, Lagoon Island, Long Island, Pannikin Island.
  • Aerial treatment: 04 August 2023: Redland Bay.
  • Aerial treatment: 19 April 2023: Russell Island, Garden Island.
  • Aerial treatment: 25 March 2023: Victoria Point, Redland Bay, North Stradbroke Island (Duck Creek), Russell Island, Garden Island, Pannikin Island, Long Island, Lagoon Island.
  • Aerial treatment: 21 February 2023: Victoria Point, Redland Bay, North Stradbroke Island (Duck Creek), Russell Island, Garden Island, Pannikin Island, Long Island, Lagoon Island, Peel Island.
  • Aerial treatment: 23 January 2023: Victoria Point, Russell Island, Garden Island, Pannikin Island, Lagoon Island.

Mosquito ground treatments

Ground treatments are conducted, in addition to aerial treatments, over the entire Redland City, including the Southern Moreton Bay Islands, North Stradbroke Island and Coochiemudlo Island. Ground treatments are conducted in areas that have limited access or heavy vegetative cover and are not able to be treated via helicopter. Sites are monitored regularly and treated when mosquito breeding is identified with registered products that are safe to use and only target mosquito larvae. 

Past mosquito treatments

Protect yourself

While Council undertakes a year-round Mosquito Management Program, during peak mosquito breeding season (November to April) additional personal protective measures should be taken.

You can protect yourself from mosquitoes by covering up, wearing light-coloured, long, loose-fitting clothing and using insect repellent. If regular insect repellent is not preferred, natural alternatives may be available depending on your local pharmacy or convenience store.

If mosquitoes are a problem in your area:

  • avoid going outdoors during dawn and dusk unless covering up and using insect repellent
  • maintain fly screens on windows and doors in your home
  • treat fly screens with a UV stable insecticide
  • use mosquito coils or plug-in insecticide burners
  • ensure yards are clean and tidy, remove excessive vegetation and regularly empty pooled water from pot plant bases, containers and tarps
  • contact your local pest technician for advice on barrier treatments and whether these are suitable for your home.

Reduce mosquito breeding

While treatments are effective, it's impossible to find or treat all breeding locations as mosquitoes are capable of breeding in small pools of water, such as bird baths and pot plant bases.

To reduce mosquitoes on and around your property, empty out unnecessary water where mosquitoes might breed and ensure rainwater tank screens are in good condition. Common breeding areas can include fallen palm fronds, boats, unchlorinated swimming pools, bird baths, tarps and old tyres.

Projects & research

Council is an active member of the Mosquito Arbovirus Research Committee (MARC). The committee is made up of councils across south-east Queensland, Queensland Health and QIMR Berghofer. MARC also has a dedicated scientist who works with local councils on mosquito research and the latest technologies, to better improve mosquito treatments, surveillance and arising mosquito issues of the future.

Please view a copy of Redland City Council's Mosquito Management Action Plan 2019 - 2024 for further project and research information.

Get involved

The Queensland Government’s Metro South Health Unit has another round of the Zika Mozzie Seeker project. The mosquito monitoring project involves community participation in setting up backyard mosquito egg traps to collect mosquito eggs for DNA testing. For further information on the Zika Mozzie Seeker project or to register your interest please view the Metro South Health Zika Mozzie Seeker web page.

Further information

For more information on mosquitoes and the latest technologies and control programs across south-east Queensland, visit the Queensland Institute of Medical Research Berghofer website, see our mosquitoes fact sheet [PDF. 0.7MB], mosquito FAQ, or watch our latest interview with MARC Entomologist on treating mosquitoes on Redlands Coast.

Read the latest Council news about mosquitoes.