Conservation and Communities, Pests

More than 2700 exotic plant and 73 exotic animal species have been introduced into Australia which severely impact agriculture systems, urban areas, and the natural environment.

Top of a large cactus, a pest.

More than 2700 exotic plant and 73 exotic animal species have been introduced into Australia which severely impact agriculture systems, urban areas, and the natural environment.

Feral Pigs

Feral pig.
Feral pigs were introduced into the Australian landscape via earlier settlers and have since caused an extensive amount of damage to environmental areas, and to high quality agricultural land each year as a result of rooting, wallowing, grazing, trampling and predation.  Read more about feral pigs.

Giant rat’s tail grass

Giant Rat's Tail grass, discussed by Reef Catchments in Mackay as a major pestNative to central and southern Africa, Giant rat’s tail (GRT) grass is a robust, upright perennial grass that grows in large tussocks. GRT grass can produce approximately 80,000 seeds per square meter with 90% seed viability. Read more about Giant Rat’s Tail grass.


Hymenachne.Hymenachne amplexicaulis, native to South America, was introduced as a ponded pasture grass for cattle fodder during the dry seasons. However this plant is highly invasive invading lagoons, wetlands, rivers, creeks and table drains.  Read more about Hymenachne..

Itch Grass

Itchgrass.Itch grass is vigorous annual, cane-like grass with an average maximum height of 3m.  The plants ‘aerial’ prop roots help to distinguish the stem from other common grasses in the region.  Read more about Itch grass.


Leucaena.In our tropical coastal area Leucaena leucacephala subspecies leucopehala has become a weed, invading creek banks, roadsides and mangrove margins. Experts advise that while the subspecies leucopehala is predominant, a number of other subspecies can be identified in the Mackay Whitsunday Region. Read more about Leucaena.

Mimosa Pigra

Mimosa pigra.Mimosa pigra is a much–branched, thorny legume shrub that grows along waterways and invades freshwater wetlands and swamps.  Read more about Mimosa Pigra.


Japanese Sunflower.
Read about the large number of high priority weeds and feral animals within our region.

Pond Apple

Pond apple.Pond Apple (Annona glabra) is a major weed impacting areas in northern Queensland. Pond Apple was originally imported to Australia in 1912 as root stock for Custard Apple. Read more about Pond Apple.

Rubber Vine

Rubber Vine.The Rubber vine is a vigorous climber which can grow either as a many stemmed shrub 1-2 meters in height or scrambling up to 30 meters in trees. It was originally introduced into Australia as an ornamental shrub during the 1800s.  Read more about Rubber Vine..


Noxious tilapia species Oreochromus mossambicus was identified at a number of locations within the Gooseponds Lagoons and at McCreadys Creek. More information, Lower Pioneer Tilapia Report (pdf), Predator Control Update June 2015 (pdf), Predator Control Update January 2016 (pdf), Gooseponds Log Hotel Feasibility (pdf).

Yellow Crazy Ants

Yellow Crazy Ant.
Yellow crazy ants are a type of tramp ant (invasive ant) that can have a significant impact on native plants and animals, crops, horticulture and honeybee hives. Read more about Yellow Crazy Ants.

Mackay Regional Pest Management Group

The Mackay Regional Pest Management Group (MRPMG) is an unincorporated advisory group and stakeholder network. The MRPMG was established in 2002 and consists of representatives from local and state government departments, community groups and industry bodies whose core business involves pest management.

Contact at Reef Catchments

Kira Andrews.
Kira Andrews
M: 0439 308 179
E: Kira Andrews

Project contacts

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