During the early 1900s prickly pear, advancing more than a thousand hectares a day, blanketed more than 20 million hectares of Queensland and northern New South Wales in a horror of spines.
This case study, part of our Threats to Nature case studies in success series, explains how a devastating and seemingly intractable weed was tamed with the aid of a tiny moth from South America. This success was due to federal leadership, intergovernmental collaboration and a persistent, well-funded scientific endeavour.
This is a standout exemplar of how Australia’s national threat abatement system can work.