Bachelor of Science, American University Beirut, 1957. Master of Science, American University Beirut, 1959. Doctor of Philosophy, University Wisconsin, 1964.
Project associate, University of Wisconsin, Madison, 1964-1965; assistant professor, American U. Beirut, 1965-1971; associate professor, American U. Beirut, 1971-1979; professor plant pathology, American U. Beirut, since 1979; associate dean faculty of agricultural, American U. Beirut, 1984-1988; dean faculty of agricultural, American U. Beirut, 1990-1994. Visiting professor Louisiana State University, Baton Rouge, 1980-1981, Jordan U. Science and Technology, Irbid, 1988-1990. Consultant Ministry of Agricultural Riyadh, Saudi Arabia, 1982-1983, Food and Agriculture Organization (of the United Nations), Rome, 1993.
Board of directors Lebanese Union for Environmental Protection, Beirut, 1991-1993. Member Amiliah Philanthropic Society (board directors since 1994), Mediterranean Phytopathology Union (vice president 1995-1997), International Society Plant Pathology (county member since 1983).
Married Aheda M. Kaddur, June 5, 1946. Children: Rani, Dahlia, Layal.