Root-lesion nematodes of the genus "Pratylenchus" are recognised worldwide as one of the major constraints of crops of primary economic importance. "Pratylenchus" spp. comprises around 70 nominal species of worldwide distribution which parasitize a wide variety of plants. The book consists of ten chapters and presents summarised and specialised information concerning the importance of the "Pratylenchus" species in: agricultural crops, and their world distribution (chapter 1); taxonomy, systematic, general morphology and diagnostic traits of "Pratylenchus" spp. including new technologies based on biochemical and molecular analyses (chapters 2-6); biology, epidemiology, ecology, host-parasite relationships, and pathogenicity (chapters 7-9). Finally, it illustrates different management strategies for "Pratylenchus" species, including, crop rotation, host-plant resistance, chemical control, soil solarisation, and biological control (chapter 10).?