Pest animals and weeds Pest animals and weeds damage our environment and agriculture. Find out what we are doing to manage these threats and how you can help.photo_cameraOpen description Lantana (Lantana camara) is an invasive weed closeClose descriptionImage Credit: Nick Cubbin/DCCEEW About pest animals and weeds Pest animals and weeds harm our environment and damage agriculture. Introduced species are one of the greatest threats to biodiversity in Australia.east Managing pest animals and weeds in our national parks We manage pest animal and weed populations in our national parks and wider reserve system.east Regional pest management strategies We prepare pest management strategies for each region in New South Wales.east Pest animals Pest animals threaten native animals and plants and can damage the environment, agriculture and cultural heritage sites.east Weeds Find out how weeds threaten biodiversity and what we are doing about it.east