Environmental weeds are plants that are considered a threat to natural bushland such as in parks and reserves. This workshop was held in 1989 by collaboration between the Weed Science Society of Victoria Inc. and the Department of Conservation, Forests and Lands at Studley Park, Kew. The proceedings presents abstracts of presentations by such luminaries of the era as Dr Malcolm Calder, Ms Vivien Freshwater and Darcy Duggan.