Originally developed by William D. Lilley, Forestry Specialist, and Vivianne J. Holmes, Extension Educator, University of Maine Cooperative Extension. Reviewed and with new information by David Fuller, Agriculture/Non-Timber Forest Products Professional, University of Maine Cooperative Extension. For information about UMaine Extension programs and resources, visit extension.umaine.edu.Find more of our publications and books at extension.umaine.edu/publications/. Table