Professor Richard Oliver has recently retired from his position as John Curtin Distinguished Professor in the Centre for Crop Disease Management at Curtin University, Australia. Amongst other honours, Professor Oliver is an Honorary Fellow of the National Institute of Agricultural Botany (NIAB), Honorary Professor at Nottingham Universities and was previously a Fellow at Rothamsted Research in the UK and a Visiting Professor at Wageningen University, The Netherlands. He is also a past President of the British Society for Plant Pathology. Dr Stephen B. Goodwin is a Research Plant Pathologist with the Agricultural Research Service of the U.S. Department of Agriculture, with a current focus on Septoria tritici blotch of wheat plus tar spot of maize.