A Computer-Based Advisory System for Diagnosing Soybean Diseases in Illinois. R. S. Michalski, Professor, Department of Computer Sciences, University of Illinois at Urbana-Champaign. J. H. Davis, Graduate Research Assistant, Department of Computer Sciences; V. S. Bisht, Graduate Research Assistant, and J. B. Sinclair, Professor, Department of Plant Pathology, University of Illinois at Urbana-Champaign. Plant Dis. 67:459. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-459.