Emeritus, Plant Pathology and Plant-Microbe Biology
I have expertise in plant pathology, particularly diseases of plants caused by bacteria, especially fire blight of apple, pear and related plants and bacterial diseases of onions. I have functioned broadly in these respects, in teaching, research and extension. My research activity has covered epidemiology and control, molecular genetics, genomics and proteomics. Much of my recent activity has been fundamental in nature, however, application of fundamental knowledge to applied problems is a strong motivation. I advise others informaly concerning bacterial diseases and the identification and manipulation of the pathogens.