Waldsterben in the Forests of Central Europe and Eastern North America: Fantasy or Reality?. John M. Skelly, Pennsylvania State University, University Park. John L. lnnes, Swiss Federal Institute for Forest, Snow, and Landscape Research, 8903 Birmensdorf, Switzerland. Plant Dis. 78:1021-1032. Copyright 1994 The American Phytopathological Society. DOI: 10.1094/PD-78-1021.