This 3-year study is the first conducted in Australia which effectively evaluates a wide range of organic, nutrient and chemical control methods for clubroot of crucifers caused by the soilborne fungus Plasmodiophora brassicae. The project has resulted in a range of management options which clearly minimise the economic impact of clubroot on production of crucifers grown for both the export and domestic markets. The strategies are based on improved hygiene, early detection, use of resistant cultivars, management of soil pH and nutrition, and strategic application of high analysis fertilisers and fungicides.