(Abbreviated) Section 1. Interactions between Soil Microflora and Fauna (G.J. Bollen, P. Bonants, L. Brussard, J. Coosemans, E. den Belder, J. de Haan, A.M. Dewar, A. El Titi, M. Geurs, T.W. Hofman, B.R. Kerry, H. Larsson, J. Middelkoop, J. Postma, W. Powell, R. Segers, S. Stemerding, L. Thijssen, J. van Esch, J.A. van Veen, G.H. Winder, B. Ulber, F.C. Zoon). Section 2. Transmission of Viruses by Soil Organisms. (M.F.J. Alderlieste, C.J. Asjes, L. Bos, D.J.F. Brown, A. de Heij, B. Henken, N. Huijberts, H. Maraite, H. Paul, A.T. Ploeg, A.Th.B. Rast, C. Rubies-Autonell, D.L. Trudgill, G. Tuitert, V. Vallega). Section 3. Fungal Antagonism. (C. Alabouvette, R.E. Beale, N. Cavalier, Y. Couteaudier, I.C. Danielsen, S. Deligianni-Mappa, R.T.V. Fox, R. Geremia, B. Gerhardson, M. Gerlagh, G.H. Goldman, H. Herrera-Estrella, G. Jager, J. Kohl, J.G. Lamers, M. Larsson, D. Looijen, E. Lucas, A.M. McQue, A. Mulder, J.J.W. Obanya Obore, P. Poupard, H. Rattink, J. Roosjen, E. Schlosser, F. Schonbeck, D. Spiegel, N.A.M. Steekelenburg, J.B. Sweet, J.E. Thomas, L.J. Turkensteen, K. Tzavella-Klonari, M. van Montagu, H. Velvis, J.W. Veenbaas-Rijks, I. Vos, J.M. Whipps, H. Wolffhechel). Section 4. Bacterial Antagonism (C. Alabouvette, P.A.H.M. Bakker, N.A. Baldwin, H. Bochow, A.L. Capper, G. Cartia, G. Cirvilleri, P. Debras, A. Dutrecq, M. Etienne, M.L. Lahdenpera, S. LeLarge, Ph. Lemanceau, P. Lucas, Ph. Lucas, M. Marlier, J.W. Meijer, U. Obieglo, A. Sarniguet, B. Schippers, E. Simon, J. Stevaux, J. Uoti, R. van Peer, E.A. Weststeijn, D.J. Yarham). Section 5. Crop-Induced and Site-Specific Antagonism (M. Babkiewicz, A. Bakker, G. Defago, G. Dijst, D. Elgersma, J. Fuchs, A. Garibaldi, L. Guglielmone, M.L. Gullino, D. Haas, G. Kahr, T. Kazimierczak, C. Keel, B.A.M. Kroon, H. Kwasna, K. Manka, A. Matta, M. Maurhofer, Q. Migheli, C. Minucci, T. Oberhansli, P. Oyarzun, W.L.M. Punte, F. Rouxel, R.J. Scheffer, B. Schippers, G. Tamietti, C. Voisard). Section 6. Fate of Natural and Manipulated Antagonism (P.A.H.M. Bakker, G.R. Dixon, D.C.M. Glandorf, D. Funck Jensen, J.P.F.G. Helsper, W.P.M. Hoekstra, M. Leeman, B. Metzler, W.L.M. Punte, J.M. Raaijmakers, E. Salentijn, B. Schippers, L. Sundheim, E.C. Tjamos, A. van Norel, R. van Peer, H. Wolffhechel). Section 7. Other Aspects of Soil-Borne Diseases (D. Amelung, J.P. Clarkson, J. Dahl Moller, A.R. Entwhistle, D. Funck Jensen, L. Lange, J. Larsen, A. Mead, H.L. Munasinghe, L.W. Olson, H. Schuepp, E. Wester). Section 8. Biocontrol and Agricultural Practice (K.A. Powell).