Weeds pose a significant threat to natural ecosystems in Australia and consequently large quantities of resources are spent each year to manage them. Amongst these, species identified as Weeds of National Significance (WoNS) are particularly important. The capacity of weed management programs to contribute to biodiversity conservation in Australia has not been comprehensively assessed. This publication is one of a suite of 13 produced as part of a folder showcasing research from the Defeating the Weed Menace Research and Development program.