Scleroderris canker of conifers

Welcome Address on Behalf of the USDA Forest Service.- Welcome to the Symposium from the Canadian Forestry Service.- History of Scleroderris Canker in Canada.- Scleroderris Canker, Gremmeniella abietina (Lagerb.) Morelet, in Canada -- An Overview.- Scleroderris Canker in the Province of Ontario, Canada.- Scleroderris Canker in the Province of Quebec, Canada.- Scleroderris Canker in the Maritime Provinces of Canada.- Scleroderris Canker in Newfoundland.- Historical and Current Scleroderris Situations in the United States.- Brunchorstia Dieback in Europe.- Differences in Disease Syndrome with Pathogen Race and with Host and Environment.- Pathogenicity and Host Range of Races of Gremmeniella Abietina in Hokkaido.- Metabolites of Gremmeniella Abietina.- Genetic Variation in Gremmeniella abietina.- The Use of Polyacrylamide Gel Electrophoresis for Rapid Differentiation of Gremmeniella abietina Isolates.- Dispersal of Conidia of Gremmeniella Abietina Related to Weather.- Inoculum Potential of Gremmeniella abietina in New York.- The Infection Process in Pines by Gremmeniella abietina.- Effect of Environmental Factors on the Post-Infection Behavior of Grermmeniella Abietina.- Gremmeniella abietina in Norway Spruce, Latent Infection, Sudden Outbreaks; Acid Rain, Predisposition.- The Role of Insects in the Dynamics of Scleroderris Canker in New York.- Effects of Sulfur Dioxide on Infection of Red Pine by Gremmeniella Abietina.- Evaluation of Possible Effects of Acid Rain on Scleroderris Canker of Red Pine in New York.- Five-Year Survey of Scleroderris Canker in Young Red Pine Plantations.- Factors Affecting the Development of Disease Epidemics by Gremmeniella Abietina.- The Movement of Gremmeniella abietina from the Alps to the Appenines.- Experiences with Scleroderris Canker onPinus cembra L. in Afforestations of High Altitude.- Disease Increase Rates for Scleroderris Canker in Lewis County, New York.- Pruning as a Silvicultural Tool in the Management of Pinus resinosa Infected with Gremmeniella abietina.- The Growth of Trees Affected by Gremmeniella abietina.- Physiological and Biochemical Factors in Austrian Pine Clones with Different Susceptibility to Gremmeniella abietina.- Screening Conifers for Resistance to Gremmeniella abietina.- Response in Canada of Jack Pine Provenances to Gremmeniella abietina.- Resistance of Lodgepole Pine to Scleroderris Canker in Northern Sweden.- Testing Fungicides for Control of Gremmeniella abietina in New York.- Interactions between Epiphytic Bacteria and Conidia of Gremmeniella abietina.- Scleroderris Canker Survey Using Aerial Photography.- Disease Management of Scleroderris Canker by Regulatory Action.- The Use of a Quarantine to Control Scleroderris Canker in New York.- The Transfer of Scleroderris Technology in Canada.- Technology Transfer of Scleroderris Research Results.- Overview and Summary of the Scleroderris Canker Symposium and Future Research Needs.