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History
- Published online November 1, 2009.
Copyright & Usage
© 2009, International Society of Arboriculture. All rights reserved.
Author Information
- Richard G. Rathjens (corresponding author), Senior Agronomist, The Davey Institute, The Davey Tree Expert Company, Kent, Ohio 44240, U.S., richard.rathjens{at}davey.com
- T. Davis Sydnor, Professor of Urban Forestry, School of Environment and Natural Resources, The Ohio State University, Columbus, Ohio 43210, U.S.
- David S. Gardner, Associate Professor of Turfgrass Science, Department of Horticulture and Crop Science, The Ohio State University, Columbus, Ohio 43210, U.S.