extensive array of peer-reviewed articles, books, and book chapters on tri-trophic level interactions, in addition to numerous Cooperative Extension Service documents. Dr. Barbosa earned a Ph.D. from the University of Massachusetts Department of Entomology.

Michael J. Davis, Professor, University of Florida Tropical Research and Education Center, has made significant contributions to our understanding of diseases that affect tropical/subtropical fruit and crops. He has performed a substantial amount of research on plant diseases caused by fastidious prokaryotes. Dr. Davis was the first individual to isolate in pure culture a number of significant fastidious, xylem-inhabiting bacterial plant pathogens, including Xylella fastidiosa. He also was one of the first scientists to clone DNA for diagnostic probes for plant pathogenic phytoplasmas. Dr. Davis’s current research is focused largely on the development of transgenic papaya and sugarcane for disease control. He earned a Ph.D. in Plant Pathology from the University of California, Berkeley.

David G. Hoel, Distinguished University Professor, Medical University of South Carolina, and Clinical Professor, Department of Radiology, University of South Carolina School of Medicine, is recognized for his contributions to epidemiology and environmental medicine. Dr. Hoel also brings special expertise in biostatistics/biometrics, and in general mathematical applications to biology and medicine. He has authored or co-authored numerous peer-reviewed articles and editorials concerning biometrics, toxicology, and environmental medicine. Dr. Hoel is a past director of the National Institute of Environmental Health Sciences, and the National Toxicology Program, Research Triangle Park, North Carolina. In 1988 he was elected to the Institute of Medicine, and in 1997 he received the National Institutes of Health Director’s Award. Dr. Hoel received a Ph.D. in statistics from the University of North Carolina, Chapel Hill.

L. Joe Moffitt, Professor, and Outreach Coordinator, Department of Resource Economics, University of Massachusetts, Amherst, is an expert in the applications of economics to biology-based crop protection for production agriculture. A significant amount of his 20 years of research has been on the economics of crop protection, with special emphasis on new technology and biosecurity. Dr. Moffitt also is interested in the applications of biology-based quantitative methods to economics and econometrics. His research and extension/outreach publications address topics such as the economics of pest control, integrated pest management, and international priorities in agricultural extension. Dr. Moffitt earned a Ph.D. from the University of California, Berkeley.

Alison G. Power, Professor, Department of Ecology and Evolutionary Biology, and Department of Science and Technology Studies, Cornell University, is recognized for her expertise in agroecology. Dr. Power’s research focuses on insect-borne plant pathogens, interactions between agricultural and natural

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