This book provides a comprehensive review of all current knowledge of the Luteoviridae. These viruses cause severe economic losses of important food crops worldwide, and have some unusual biological and molecular properties, which are discussed. The topics covered range from the reclassification, structure, diversity and genetics of luteoviruses, to their transmission and interaction with vectors, techniques for diagnosis, development of virus resistant plants, epidemiology and control. This book is essential reading for advanced students and researchers in virology and plant pathology.