In favourable conditions such as warm, wet, and acidic soils, Clubroot can be a devastating soil-borne disease affecting both Western brassica vegetables (e.g. cabbages, cauliflower, broccoli, kale, and Brussels sprouts) and Asian brassica vegetables (e.g. bok choy, choy sum, and daikon radish) in Australia.

The pathogen (Plasmodiophora brassicae) attacks the roots of vegetables. Once plants are infected there are no effective control measures, however, integrated management strategies can help to prevent infection and spread.