Our scientists, in collaboration with international and local partners have been studying mosquitoes and their behaviour on the Cassowary Coast. The team’s research efforts are now wholly focused on the invasive Aedes aegypti mosquito that transmits the dengue, chikungunya and Zika viruses.

The challenge

Global response to a global problem

Mosquitoes are a global problem that require a global collaborative response. CSIRO has been studying mosquitoes for many years, considering new methods to reduce populations.

CSIRO is excited to start working with Verily (a Google affiliate) and James Cook University to expand our studies in Innisfail to confirm that new technologies will reduce mosquito populations in large urban landscapes.

Our multi-disciplinary team of international biologists, entomologists and social scientists are partnering together to provide a collaborative approach to tackling mosquito-borne viruses.

Our response

Mark, Release, Recapture study

Our scientists, in collaboration with international and local partners have been studying mosquitoes and their behaviour on the Cassowary Coast since November 2015. This work has included Mark, Release, Recapture studies and has helped inform new ways to reduce invasive populations of mosquitoes that can transmit diseases.  The team’s research efforts for 2017/18 are now wholly focused on the invasive Aedes aegypti mosquito that transmits the dengue, chikungunya and Zika viruses. 

The long-term goal of our research is to show that we can suppress and even remove the invasive Aedes aegypti mosquito from the urban landscape. In 2017, we are planning studies on the Cassowary Coast that will involve releasing sterile male mosquitoes and testing tools. We’re helped in our ability to do this by the science conducted at James Cook University, Cairns and the tools that Verily’s engineers are developing in their labs in the USA. These studies would only proceed following extensive engagement with and support from communities and with government regulatory approval. See FAQs – Releasing sterile males.

Field studies in 2017 releasing sterile male mosquitoes

It is hoped to begin the first release of sterile male mosquitoes in the community of Silkwood in May 2017. This will involve releasing sterile male Aedes aegypti mosquitoes; testing new tools to do this, refining mathematical models and monitoring mosquito numbers.

Following this initial study we will identify further communities in the Innisfail area where extensive engagement with residents and stakeholders will be undertaken, before confirmation of larger studies involving the release of sterile male mosquitoes may be carried out towards the end of 2017.

[CSIRO logo appears on screen with text: monitoring mosquitoes in Innisfail]

[Animation of a map of Australia appears on screen with three places labelled Cairns, Innisfail and Townsville. A small section between Cairns and Townsville is marked out with a white line, the dot that Innisfail sits at with another text box saying Cassowary Coast]

[Image changes to show an aerial shot of Innisfail, buildings can be seen either side of a river and connected by a bridge. An animated mosquito flies in from the right above a text box: mosquitoes love tropical climates]

[Image changes to show a line graph indicating the average rainfall and temperatures of each of the months. Text reads: … like Innisfail where it’s wet and hot]

[Image changes to show a shot of the main street, lined with shops and parked cars. Text reads: … and some love to live around people]

[Image changes to show two CSIRO staff members walking the streets together. Text reads: we’ve been studying mosquito numbers since November 2015]

[Image changes to show a small map of Innisfail and surrounding areas appear on the right hand side. Text reads: through a network of traps]

[Image changes to show the male CSIRO staff member seated with another male at an outdoor table and chair setting. Text reads: - thanks to Innisfail residents and business owners]

[Image changes to show the CSIRO staff members setting a trap. Text reads: the GAT trap attracts females ready to lay their eggs – emptied weekly]

[Camera pans out to show more of the extensive trapping system being set by the two CSIRO staff members. Text reads: the BG trap (powered) sucks in nearby mosquitoes – emptied weekly]

[Image changes to show CSIRO staff members working in a laboratory. Text reads: in the lab we studied what we found and asked what species? How Many? What time of year? We found…]

[Image changes to show a line graph detailing the total number of Mosquitoes caught in the GAT trap over a period of time from December 2015 to September 2016. Text reads: over 30 different species of mosquito and a consistent number of Aedes aegypti.]

[New text appears: Aedes aegypti is an invasive species. Two animated mosquitoes appear on screen a smaller one labelled ‘Male’ and a larger one labelled ‘Female’]

[Image changes to two potted plants and a foot being added to the animation. Both mosquitoes land on the foot and the female draws blood, which is shown as a pool of red on the surface of the foot. Text reads: females bite and can transmit diseases like dengue and Zika]

[Image changes to show the male mosquito leaving the foot and flying off and landing on one of the potted plants. Text reads: males don’t bite they feed on nectar]

[Image changes back to show an aerial shot of Innisfail. Text reads: we now plan to study the behaviour of the male Aedes aegypti mosquito]

[CSIRO logo appears with text: www.csiro.au/Innisfail_project]

Monitoring mosquitoes in Innisfail

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