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U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Pathogenic Variability in Cronartium Fusiforme

Investigations are in progress at the Southern and Southeastern Forest Experiment Stations to determine if pathogenic variability exists in Cronartium fusiforme Hedgc. & Hunt ex Cumm. The likelihood that such variability occurs has been suspected for some time, and was strengthened by the recent discovery of variability in C. quercuum (Berk.) Miyabe ex Shirai (Kais and Snow 1969;Powers 1969), a less important pine-oak rust fungus found within the range of C. fusiforme. This paper reviews results from recently completed or current studies at the two stations.


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Author(s): Glenn A. Snow, Harry R. Powers, Jr., Albert G. Kais

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1969