Plant-parasitic nematodes are responsible for an estimated annual loss of US$100 billion worth of commodity, staple and industrial crops worldwide. With global changes in temperature, it is likely that this figure will increase as nematode pests thrive in previously unsuitable areas and increase their reproductive rate. Correct identification is essential in understanding nematode diversity and enabling management and control. Since the first edition of this book was published in 2012 (Mundiprensa, Mexico), advances in molecular techniques have transformed methods of studying and identifying species and proven helpful for disentangling species complexes. However, nematode crop damage can still be difficult to assess due to a lack of expertise (especially taxonomy) in making accurate diagnosis, and a lack of nematology courses and training within crop protection. This book addresses the need for a practical foundation course, and covers: · Biology, morphology, taxonomy and practical aspects of symptomatology, sampling, preparation and identification of nematodes using both classical and molecular approaches · Taxonomy, diversity and bionomics (e.g. biology, ecology, management) of the most economically important plant-parasitic nematode groups · Ecology (nematodes as bioindicators), biochemical and molecular processes involved in plant-nematode interactions, integrated pest management, quarantine issues, knowledge dissemination aspects and statistics This is an introductory text in practical nematology aimed at students of agronomy, biology, extension, phytosanitation and professionals involved in crop protection and plant disease diagnostics.