Soilborne organisms are becoming more difficult to control due to pathogen resistance and restricted use of some chemicals. The cost of chemicals is also becoming a concern. Brassicas are of interest in that they produce glucosinolates, which can be converted to chemicals with biofumigant activity. In addition to providing some disease control, growing and incorporating the brassica improves soil structure, assists in weed control, reduces soil erosion and provides organic matter. They are of particular value to the organic producer, who has limited resources for disease and pest control