@article {4154, title = {Fraser Fir in the Great Smoky Mountains National Park: Its Demise by the Balsam Woolly Aphid (Adelges Piceae Ratz.)}, year = {1978}, note = {Illustrations, Maps}, month = {January 1}, institution = {Department of Forestry, University of Tennessee}, address = {Knoxville, TN}, keywords = {Conservation, Fraser fir, Insects, Trees -- Decay, Trees -- Growth, Woolly adelgids}, url = {http://archive.org/details/fraserfiringreat00hayr}, author = {Hay, Ronald L and Eagar, Christopher C and Johnson, Kristine D} }