Professor Emeritus in Entomology, DAVID N. BYRNE attended San Jose State College and got his PhD at the University of Idaho. He then joined the faculty of the College of Agriculture and Life Science, and taught a variety of courses relating to applied entomology and insect biology. He spent summer months in Yuma characterizing the dispersal and bionomics of the sweet potato whitefly, and in the laboratory studied its migratory behavior.