PART I. NEMATODE MORPHOLOGY AND TAXONOMY; Morphology and Taxonomy of Nematodes Used in Biocontrol - S P Stock, University of Arizona, USA, and D J Hunt, CABI Bioscience, Surrey, UK; PART II. ENTOMOPATHOGENIC NEMATODES; Biology and Behavior - C Griffin, National University of Ireland, UK, N Boemare, Universite Montpellier II, France, and E E Lewis, Virginia Technology Institute, USA; Mass Production - R-U Ehlers and D I Shapiro-Ilan; Formulation and Quality - P S Grewal, and A Peters, e-nema GmbH, Germany; Application Technology - D J Wright, Imperial College London, UK, A Peters, S Schroer, Christian-Albrechts University Kiel, Germany, and J Patterson Fife, Battelle Memorial Institute, USA; Forum on Safety and Regulation - R-U Ehlers; Lawn, Turfgrass and Pasture Applications, P S Grewal, A M Koppenhofer, Rutgers University, USA, and H Y Choo, Gyeongsang National University, Republic of Korea; Glasshouse Applications, M Tomalak, Institute of Plant Protection, Poland - S Piggot, Littlehampton, UK and G B Jagdale, Ohio State University, USA; Nursery and Tree Application - R W H M van Tol, Wageningen-UR, Wageningen, The Netherlands and M J Raupp, University of Maryland, USA; Mushroom Applications - S Jess, Department of Agriculture and Rural Development for Northern Ireland, H Schweizer, Queen's University of Belfast, and M Kirkpatrick, NIHPBS Loughgall, County Armagh, UK; Orchard Applications - D I Shapiro-Ilan, L W Duncan, University of Florida, Lake Alfred, USA, L A Lacey, USDA-ARS, Washington, USA and R Han, Guangdong Entomological Institute, Guangzhou, China; Soft Fruit Applications - R S Cowles, Connecticut Agricultural Experiment Station, USA, S Polavarapu, (Deceased), R N Williams, Ohio State University, USA, A Thies, e-nema, France, and R-U Ehlers; Vegetable and Tuber Crop Applications - G Belair, Agriculture and Agrifood Canada, Canada, D J Wright, and G Curto, Servizio Fitosanitario Regione emilia-Romagna, Italy; Cereal, Fiber, Medicinal, and Oilseed Crop Applications - H E Cabanillas, USDA ARS, USA, R J Wright, University of Nebraska-Lincoln, USA and R V Vyas, Gujarat Agricultural University, India; Forestry Applications - P Torr and M J Wilson, University of Aberdeen, UK and S Heritage, Forestry Research, Northern Research Station, Roslin, UK; Applications for the Control of Pests of Humans and Animals - I Glazer, Volcani Center, Israel, M Samish, Kimron Veterinary Institute, Bet-Dagan, Israel, and F G del Pino, Universitat Autonoma de Barcelona, Spain; Application for Social Insect Control - D H Gouge, University of Arizona, USA; A Systems Approach to Conservation of Entomopathogenic Nematodes, M Barbercheck, Pennsylvania State University, USA, and C W Hoy, Ohio State University, USA; Interactions with Plant-parasitic Nematodes - E E Lewis and P S Grewal; Compatibility and Interactions with Agrochemicals and Other Biocontrol Agents - A M Koppenhofer and P S Grewal; PART 3. ENTOMOPHILIC NEMATODES; Application of Beddingia siricidicola for Sirex Wood Wasp Control - R A Bedding, CSIRO, Australia and E T Iede, EMBRAPA Florestas, Brazil; The Entomophilic Thripinema - J E Funderburk and K Sims Latsha, University of Florida, USA; Mermithid Nematodes - E G Platzer, B A Mullens, University of California, Riverside, USA and M M Shamseldean, Cairo University, Egypt; PART 4. SLUG-PARASITIC NEMATODES; Biology, Production, and Formulation of Slug-parasitic Nematodes - M J Wilson and P S Grewal; Field Application of Slug-parasitic Nematodes - A Ester, Applied Plant Research Ltd, The Netherlands and M J Wilson; PART 5. PREDATORY NEMATODES; Potential of Predatory Nematodes to Control Plant-parasitic Nematodes - A L Bilgrami and C Brey, Rutgers University, USA; PART 6. FUNGAL FEEDING NEMATODES; Potential of Fungal Feeding Nematodes for the Control of Soilborne Plant Pathogens - N Ishibashi, Saga University, Japan; PART 7. CONCLUSIONS AND FUTURE DIRECTIONS; Critical Issues and Research Needs for Expanding the Use of Nematodes in Biocontrol - P S Grewal, R-U Ehlers and D I Shapiro-Ilan.