Links American Phytopathological Society Department of Plant Pathology, Univerisity of Nebraska. Turfgrass Disease Diagnostic Lab-University of Wisconsin Institute of Molecular Virology, University of Wisconsin-Madison Nematodes, University of Nebraska. USDA Nematology Laboratory. Plant Pathology Resources, Cornell University. The Plant Pathology Internet Guide Book. Mycological Teaching Resources. UW Integrated Pest Crop Management Site. Soybean Plant Health. Plant Disease Diagnostic Clinic. UW Vegetable Pathology. Wisconsin Seed Potato Certification Program. Wisconsin Fast Plants.