Nelda Matheny is senior consultant for HortScience | Bartlett Consulting, a division of F.A. Bartlett Tree Expert Company. For over 40 years, Nelda has been providing consultation for horticulture, arboriculture and urban forestry. She has particular experience tree preservation during land development and evaluation and tree risk assessment and management. She is recognized for her extensive knowledge and experience in site evaluation, diagnosis, soils and recycled water use in landscapes. Partial List of Publications:Matheny, N., L. R. Costello and D. Kelley. 2015. Overview of recycled water quality and landscape plants. 2015 California Plant and Soil Conference Proceedings. Fresno, CA , Feb. 4-5 (pp. 46-53).Harris, R., J. Clark and N. Matheny. 2004. Arboriculture - Care of landscape trees, shrubs and vines. 4th edition. Prentice Hall Inc. Upper Saddle River NJ.Smiley, E.T., N. Matheny and S. Lilly. 2024. Tree Risk Assessment Best Management Practices, 3rd Ed. International Society of Arboriculture. Champaign, IL.Costello, L.C., E. Perry, J. Matheny, J.M. Henry and P. Geisel. 2003. Abiotic disorders of landscape plants: A diagnostic guide. Pub. 3420. Univ. of CA Ag and Natural Resources, Oakland CA.Matheny, N. and J. Clark. 1999. Trees and Development. International Society of Arboriculture. Champaign IL.Matheny, N. and J. Clark 1993. A photographic guide to the evaluation of hazard trees in urban areas. International Society of Arboriculture. Champaign IL.Costello,L., N. Matheny and J. Clark. 1991. Landscape water management: estimating landscape water requirements. Univ. Calif., Coop. Ext. Lft. 21493.Specialties: Horticulture, arboriculture and urban forestry consulting; tree risk assessment and management, tree preservation during construction, plant problem diagnosis, managing landscapes using recycled water, landscape site evaluation and plant selection, water conservation in landscape management