Invasive Species

Authorities use DNA testing and tracing to work out the origin of fire ants found more than 700 kilometres outside the biosecurity control zone meant to contain the invasive pest.

Fire ants have been detected in central Queensland for the first time, at a mine site near Moranbah, inland from Mackay.

Aggressive and invasive, Amazon frogbit is being sold in online stores right across Australia, and has been found in the Northern Territory for the first time.

The discovery of a fire ant nest at Tweed Heads on the NSW far north coast has prompted a quick response from authorities.

Thousands of South Australia's trees and some crops will be threatened if a tiny beetle makes its way across the state border from WA.

An eyeless wasp is just one of several new cave-dwelling invertebrates discovered within the proposed boundary of a massive renewable energy project.

A leading biosecurity officer says it will be several months before Australia can be declared free of an invasive snail that has the potential to infest hundreds of plant species.

The WA government will stop trying to eradicate an invasive beetle called the polyphagous shot-hole borer and start managing it instead. Why is this pest so dangerous, and what can be done about it?

The Kimberley is a land defined by its extremes: a wild climate, harsh terrain and remarkable biodiversity. Join Nyikina man Mark Coles Smith as he guides us on a journey through his ancestral lands, celebrating the people, places and animals that define this extraordinary part of the world.

In just three nights, deer destroy almost an entire crop at a fledgling vegetable-growing business north of Melbourne. 

The Queensland government is yet to address a feral goat problem on Great Keppel (Woppa) Island, two years after it took back the leases to the old resort.

Introduced to prime grazing paddocks in outback Queensland as part of efforts to reduce prickly acacia, camels are making short work of an issue costing farmers millions.

Hundreds of trees and shrubs infested with a devastating borer will be removed from Perth's Hyde Park in an effort to protect historic fig and plane trees. 

Yellow crazy ants are one of the world's worst invasive species and they are spreading on the doorstep to K'gari, prompting calls for biosecurity improvements.

Animals introduced to feed shipwrecked sailors in the 1800s are damaging ancient Aboriginal cave paintings that are thousands of years old.

By removing a gene to stunt cane toads at their tadpole stage, scientists hope they may have found a way to make the invader kill its own species.

Scientists say land managers in Queensland's Wet Tropics are winning the war against one of the world's worst invasive ant species but fear the gains could be lost if federal funding is allowed to run out.

Feral deer populations are booming in Queensland, damaging farms and costing millions, but some are turning them into a business opportunity.

Residents in Queensland's fire ant suppression zone are pleading for help, saying nest numbers and attacks on humans and animals have exploded since ex-Tropical Cyclone Alfred swamped the state's south east.

Two poorly placed cacti more than 50 years ago have turned into a full-scale invasion. It's prompting calls for people to dispose of their cacti safely to avoid a very prickly problem.