S J Kolte, Professor of Plant Pathology, G B Pant University of Agriculture and Technology, Uttar Pradesh, India, is Project Leader of the Oilseeds Pathology Project at Pantnagar. He is the author of four other books and has written many book chapters, review papers, published in journals & bulletins. He has written 54 research papers in field of oilseed crop diseases. He received the Ph.D (1971) in Plant Pathology from Pantnagar University. He has visited Canada, USA, UK, Sweden, Ethiopia and China, as part of his research responsibilities on oilseed crop diseases. Bruce D L Fitt, oilseed Pathologist of IACR-Rothamsted, Harpenden, Herts, is internationally known for his work on epidemiology and management of diseases of oilseed crops especially linseed. He has visited Canada, USA, several European countries and India.