The following images depict just some of the serious invasive pests and weeds we're up against in Australia.
 
There are 33 photos. For those viewing with images off, there are captions on each image page.
 
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Goats
European red fox
Rabbit damage
 
Cane toad (Bufo marinus)
Asian house geckoes (Hemidactylus frenatus)
 
Mosquito fish (Gambusia holbrooki)
Northern Pacific seastars (Asterius amurensis)
New Zealand cushion star (Patiriella regularis)
Mystery snails (Pomacia species)
 
Brown widow spider (Latrodectus geometricus)
Red imported fire ant (Solenopsis invicta)
European bumblebee
Portuguese millipede
Mediterranean white snails (Theba pisana)
 
Phytophthora cinnamomi
Phytophthora
Phytophthora
 
Artichoke thistle (Cynara cardunculus)
Bitou bush (Chrysanthemoides monilifera)
African capeweed (Arctotheca calendulacea)
Cats-claw creeper (Macfadyena unguis-cati)
Cats-claw creeper
Cecropia (Cecropia species)
Cecropia grove
Gorse (Ulex europaeus)
Hemlock (Conium maculatum)
Hymenachne
Kudzu (Pueraria lobata)
Madeira vine (Anredera cordifolia)
Morning glory (Ipomoea purpurea)
Rubber vine (Cryptostegia grandiflora)
Sisal
Gamba Grass