RT Journal Article SR Electronic T1 Tree Energy Systems JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 53 OP 58 DO 10.48044/jauf.1989.013 VO 15 IS 3 A1 Ossenbruggen, H. Sharon YR 1989 UL http://auf.isa-arbor.com/content/15/3/53.abstract AB Keeping trees healthy, safe, and attractive while keeping utility lines clear necessitates difficult choices that can be made only with a thorough knowledge of tree health. This is a significant part of any tree maintenance plan. Instituting innovative tree maintenance plans requires working closely with our communities. Communication and education are critical components.