Invasive Plants and Pest Animals

The Cassowary Coast’s landscapes are home to some of the most unique ecosystems on Earth, but they’re also under constant pressure from pests, weeds and diseases. These invasive species threaten our environment, agriculture, economy and community wellbeing, making effective management everyone’s responsibility.

Whether you’re a landholder, farmer, resident, tourism operator or council employee, we all share a role in reducing the spread of pests and weeds. Under Queensland’s Biosecurity Act 2014, landholders are required to take reasonable steps to manage biosecurity risks on their property.

Council supports this effort by providing guidance on priority weeds, pest animal management, and local programs such as, trapping, trap hire and weed control. Through education, planning and coordinated action, we can safeguard the Cassowary Coast’s natural environment for generations to come.

 

Pest Animals

Feral Pigs

Feral pigs are a pervasive pest species found throughout the Cassowary Coast region and across much of Australia. They cause significant damage to agricultural land and natural ecosystems by spreading disease, uprooting vegetation and threatening the survival of native species.

Information on feral pigs in the Cassowary Coast region, can be found in the following extract from the local area Biosecurity Plan.

Feral Pigs - Biosecurity Plan(PDF, 504KB)


Pig Traps

To help control feral pigs across the Cassowary Coast, Council offers residents the option to hire or purchase pig traps. These traps are made locally by upcycling retired sugar cane bins, turning waste materials into durable, effective traps while keeping costs low for landholders.

  • Hire option – Traps can be hired for a 28-day period with a $300 refundable deposit. The deposit is held only as security and is fully refunded once the trap is returned in good condition.

  • Extensions – If you need the trap for longer, this can be arranged through Council’s Feral Pig Coordinator, depending on current demand and bookings.

  • Purchase option – Traps are also available to purchase outright for $440 (including GST), allowing landholders to keep their own upcycled cane-bin trap permanently.

These locally made traps support sustainable pest management by reusing regional materials, reducing waste and helping landholders manage feral pigs effectively and humanely.

View and Download the Trapping Feral Pigs on the Cassowary Coast - A Practical Guide(PDF, 4MB) .

To Request a Trap: Feral Pig Trap Application Form(PDF, 334KB)

For more information please visit: Visit Queensland Health's - Medicines, Poisons and Pest Management for more information


Feral Cats

Feral cats are widespread throughout the Cassowary Coast and broader Far North Queensland region, posing a serious threat to native wildlife. They prey on small mammals, birds and reptiles, spread disease, and are recognised as one of Australia’s most destructive invasive species, significantly impacting biodiversity and ecosystem health.

If you have feral cats on your property, please contact Council for further information or to arrange access to feral cat traps.


Indian Myna Birds

The Indian myna is an aggressive and adaptable bird now established across Queensland, including the Cassowary Coast region. It competes with native wildlife for nest hollows and food, damages crops and garden produce, spreads weeds and may pose health and noise issues in urban settings.

If you’ve spotted Indian mynas on your property or in your neighbourhood, please contact Council’s Biosecurity or Natural Environment team for advice on trapping, control options and how you can help reduce their impact.

For more information please visitIndian Myna Fact Sheet


Cane Toads

Cane toads are now well established across Australia, including the Cassowary Coast and pose a serious threat to native flora and fauna. These toxic invaders compete with, prey on or poison native wildlife, disrupt ecosystems and expand rapidly across the landscape.

Take part in the annual Great Cane Toad Bust organised by Watergum, a community event where participants record, capture and safely dispose of cane toads. Visit Watergum’s Website for details, or contact Council for more information on how you can join or register your contribution.

For more information please visit: Cane Toad Fact Sheet


Tilapia

Invasive tilapia are a serious threat to freshwater ecosystems, outcompeting native fish, degrading habitats and spreading rapidly through local waterways. Under Queensland’s Biosecurity Act 2014, it is illegal to keep, breed, transport or release tilapia, any fish caught must be humanely euthanised and disposed of, not returned to the water.

Cassowary Coast Regional Council encourages the community to take part in the annual Tilapia Tournament at Warrina Lakes, where locals come together to help remove this invasive species and protect our native fish. The event is open to all ages, with prizes awarded for the largest and most tilapia caught.

Keep an eye on Council’s website and social media for upcoming event dates or contact the Natural Environment and Sustainability team for more information.

For more information please visit: Tilapia Fact Sheet


Ants

Electric Ants

Electric ants are an invasive pest species found in parts of Far North Queensland, posing a serious threat to native wildlife, pets and outdoor activities. Their painful sting and aggressive behaviour can harm animals, disrupt ecosystems and make gardens and recreation areas unsafe.

If you suspect electric ants on your property, you can request a free yard check or report potential infestations to assist in regional eradication efforts. Residents are also encouraged to use the interactive map to check current restricted zones and movement controls before relocating soil, plants or garden materials.

Request a free yard check or report electric ants

 View the electric ant restricted zone map

Yellow Crazy Ants

Yellow crazy ants are an aggressive invasive species found in parts of Far North Queensland, including areas of the Cassowary Coast. They form super-colonies that can overwhelm native insects, small animals and even ground-nesting birds, posing serious risks to biodiversity and the health of rainforest ecosystems.

Their name comes from their frantic movement when disturbed, and their formic acid spray can cause irritation to animals and people. Early detection and coordinated control are vital to preventing further spread.

If you suspect yellow crazy ants on your property, please contact Council’s Biosecurity team or the Wet Tropics Management Authority to report sightings or request advice on control measures.

 Learn more about yellow crazy ants and current eradication programs

Check if you are in a high risk or restricted area by visiting: AntZone Map

 

Camera Trap feral pig

Weeds

Learn About Them

Gathering information before you begin works can save you time and money.

For technical advice on specific weeds, chemical control application rates, other methods of weed removal or control, visit Restricted invasive plants of QLD - Info sheets

Know Your Priorities

Additional information including local distribution, flowering and seeding times etc can also help to inform control strategies. More information can be found in the Cassowary Coast Local Area Biosecurity Plan 2025-2029(PDF, 37MB).

The plan highlights levels of control for each catchment area and priority weeds, making it easy to identify what is required for your property.

Cover of Biosecurity Plan

Cassowary Coast Local Area Biosecurity Plan 2025-2029(PDF, 37MB)

Cassowary Coast Prevention and Control Program(PDF, 499KB)

Cassowary Coast Surveillance Program(PDF, 497KB)

Download your copy from the link above and for clarification on anything, send an email to enquiries@cassowarycoast.qld.gov.au

Council Priorities

Council undertakes:

  • Limited control of select weeds in priority areas - often weeds that are not well-established or weeds that are in critical habitat areas.
  • Widespread weed control to reduce its spread into uninfected areas and to protect key assets e.g. Singapore daisy.
  • Technical advice services
  • Property inspections for declared weeds when there are property realignment applications

Categories of Weeds

Under the Biosecurity Act 2014, pest plants and animals are listed as 'restricted' or 'prohibited'.

Prohibited pest species are not present in Queensland. Allowing these species into the state could have major social, environmental and economic impacts. Restricted pest species are already present in the state.

Cassowary Coast Regional Council is responsible for over 5000 hectares of reserves, parks and foreshore from Eubenangee in the north to the Cardwell Range in the south. With a limited number of staff and resources, it is essential that weeds are prioritised, taking into account reproductive cycles and growth habits as well as upcoming weather events, the location (i.e. is it in a critical habitat area?), asset protection and how widespread the weed is.

Features that make a weed:

  • Quick to germinate in favourable conditions
  • Fast-growing
  • Producing lots of seeds and/or reproducing easily from fragments
  • May have a seed that will remain viable for many years waiting for the right conditions
  • Effective dispersal mechanisms – easily spread by wind, water, animals, machinery, and vehicles
  • Often resistant to pests and diseases

Cassowary Coast Regional Council's Top Priority Weeds

Weeds of National Significance (WONS)

Weeds of National Significance (WONS) are prioritised by their invasiveness and impacts on the environment, primary industry, biodiversity and conservation values as well as land management and human and animal welfare.

WONS found within the Cassowary Coast region:

More information on WONS

Locally Declared Weeds

These pest plants have been identified as a threat due to isolated infestations or several problem weed features. They may also be causing havoc in areas of similar climate, soil types or land tenure.

The Cassowary Coast's locally declared weeds:

To learn more, see Pest Factsheets on the Department of Primary Industries website. The factsheets cover plant identification, registered chemicals for each weed's control, declared states and growth habits. They also outline ideal locations and climates for infestations.

Advisory Forums

Biosecurity Queensland hosts pest advisory forums four times a year in North Queensland. These forums are an opportunity to learn about new weeds and control methods and to network with weed control experts in your area. For more information visit www.fnqpaf.qld.gov.au.

More Information

Learn more about pests, clean down procedures, chemicals and registration permits for specific weeds or chemicals:

Legislation

The Biosecurity Act 2014 (the Act) was passed by Parliament and came into effect on 1 July 2016.

Information from the Department of Agriculture and Fisheries website

Panama TR4 Program (Bananas) - Biosecurity Queensland, Department of Agriculture and Fisheries