Aggressive and invasive, Argentine ants pose a serious threat to New Zealand's natural environment.
Learn how deer have a negative impact New Zealand's native forests.
Goats were introduced to New Zealand in the early days of European settlement and the descendents of those that escaped or were deliberately released thrived in the country’s grass hills, forest and scrubland areas.
Although rabbits are the main diet of ferrets, this mustelid will attack, kill and eat native species. Learn more about this tenacious predator.
Find out about some of the pest fish found in New Zealand and why they are a problem for our freshwater ecosystems.
The great white butterfly poses a major economic and environmental threat. This introduced pest is a threat to commercial and home brassica crops, and to native cresses.
Hedgehogs have voracious appetites. They pose a threat to native weta, skinks, and the eggs and chicks of ground-nesting birds.
Learn about the Kaimanawa wild horse working plan, how wild horses put native plants at risk and how you can help the horses.
Introduced about 1870, the wallabies on Kawau Island continue to have a negative impact on the island's ecosystem.
Find out about the impact family pets have on New Zealand's wildlife and learn ways you can reduce the chance of your pet being part of this significant problem.
Native to Australia, plague skinks were first recorded in Auckland during the 1960s and are now posing a threat to our rare native lizards.
Introduced to New Zealand in 1837 to establish a fur trade, the possum has become one of the greatest threats to our natural environment.
European rabbits were amongst the earliest of mammalian pests to be introduced to New Zealand. As herbivores, they are very significant agricultural and ecological pests.
Native to some parts of Australia, the rainbow lorikeet was illegally released in Auckland in the 1990s. This dominant and prolific bird now poses a significant threat to our native wildlife.
Learn about rats in New Zealand and pest control measures that have been put in place to reduce this threat to native plants and animals.
Learn about the negative impact stoats have on New Zealand's native species and what's being done to control this fierce predator.
Learn about the Himalayan tahr and how it threatens native plants.
New Zealand has some of the highest densities of German and common wasps in the world. They have major social and environmental impacts.
Weasels are found in low numbers in most habitats in New Zealand. This mustelid poses a significant threat to native wildlife.
Pest Detective website: an interactive field guide to help you identify the presence of animal pests in New Zealand.