Lecture—2 hour(s); Discussion—1 hour(s). Prerequisite(s): PLP 120; PLP 201A; Graduate student status in the Plant Pathology Graduate Program or consent of instructor. Case-studies approach to analysis of plant diseases, including emerging diseases, caused by bacteria, fungi, nematodes, and oomycetes: impacts, etiology, pathogen taxonomy, epidemiology, biochemical and genetic aspects of pathogen-host interactions, virulence, resistance, disease control and statistical analysis. (Letter.) Effective: 2009 Spring Quarter.