aCentral Science Laboratory, Sand Hutton, York, YO41 1LZ, UK; bP.O. Box 309, Castlemaine, Victoria 3450, Australia; cPlant Production Systems, Wageningen University, P.O. Box 430, 6700 AK, Wageningen, the Netherlands; dIBIMET CNR, Via G. Caproni 8, 50145 Florence, Italy; eRural Economy Research Centre, Teagasc, Mellows Campus, Athenry, County Galway, Ireland; fBioforsk, Norwegian Institute for Agricultural and Environmental Research, Division of Plant Health and Plant Protection, Høgskoleveien 7, N-1432 AAS, Norway; gNSW Department of Primary Industries, Wagga Wagga Agricultural Institute, PMB, Wagga Wagga, NSW 2650, Australia; hCRA Centro di Ricerca per la Patologia Vegetale (CRA-PAV), Via C.G. Bertero 22, I-00156 Rome, Italy; and iEnvironment, Resources and Technology, Faculty of Life Sciences, The University of Copenhagen, Hoejbakkegaard Alle 9, 2630 Taastrup, Denmark
*E-mail: [email protected]
Published online 12 March 2008