His current research focusses on the constraints faced by smallholder farmers in tropical horticulture that limit adoption of improved crop management and family livelihoods. He has supervised over 40 postgraduate research students, published over 100 research articles, three books, 19 chapters and peer-reviewed articles and been awarded over $17 million in research funding. He a frequent Keynote or Plenary speaker at national and international conferences, is a Fellow of the Australasian Plant Pathology Society, Past-President of the Asian Association of Societies for Plant Pathology recipient of a Career Medal for Agriculture and Rural Development from the Government of Vietnam and is a Member of the Order of Australia.