Affiliation: | (1) Consolidated Laboratories, Inc., Chicago Heights, Illinois;(2) Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio;(3) Department of Plant Pathology and Botany, University of Minnesota, St. Paul, Minnesota;(4) Institute of Microbiology, Rutgers, The State University, New Brunswick, N.J.;(5) Department of Botany & Plant Pathology, Purdue University, Lafayette, Indiana |