• IAS-HK 2019: 3 Days (Wed to Friday, Nov 13-15 2019) *If you are registering for more than 1 person, please enter the details for each person during registration. Each person must have their own name badge, registration details, and contact information. Visit the IASHK home page for all the conference details: www.ias.hk
  • IAS-HK 2018: 1 Day (Wednesday, Nov 14, 2018)

    **If you are registering for more than 1 person, please enter the details for each person during registration. Each person must have their own name badge, registration details, and contact information. Visit the IASHK home page for all the conference details: www.ias.hk
  • IAS-HK 2018: 1 Day (Thursday, Nov 15, 2018)

    **If you are registering for more than 1 person, please enter the details for each person during registration. Each person must have their own name badge, registration details, and contact information. Visit the IASHK home page for all the conference details: www.ias.hk
  • IAS-HK 2018: 1 Day (Friday, Nov 16, 2018)

    **If you are registering for more than 1 person, please enter the details for each person during registration. Each person must have their own name badge, registration details, and contact information. Visit the IASHK home page for all the conference details: www.ias.hk
  • New cover design. This complete guide to the tools and equipment used by arborists, including their specific uses and limitations, is an important resource written by an author with decades of experience on the ground and in the trees. Fully-illustrated, excellent technical information for efficient and safe operations is peppered with many engaging stories about the history of arboriculture. (©1999, softcover, glossary, index, 300 pp.) QUIZ  Designed to accompany the Arborist Equipment guide, ten CEUs* may be earned toward ISA recertification by studying the book, answering all of the quiz questions, returning the answer sheet to ISA, and receiving a score of 80% or greater. (©1997, 12 pp.) By Don Blair
  • Learn the essentials for preserving trees during all stages of the land development process in this 200-page guide to proactive tree sustainment in the developing urban environment. Written to assist arborists, as well as development, design, and engineering professionals, it is a comprehensive look at tree assessment, techniques for reducing impact from development, and post-construction maintenance with detailed instruction for preparing plans and reports, case studies, and appendices. (©1998, softcover, 184 pp., appendices) QUIZ  Designed to accompany Trees and Development: A Technical Guide to Preservation of Trees During Land Development, four CEUs may be earned following completion of this 75-question quiz and answer sheet. After completing the answer sheet, send it to ISA for grading. A score of 80% or greater is required to earn CEUs. (©1998, 12 pp.) By Nelda Matheny and James R. Clark
  • Sale!
    A must-have resource for researchers and practicing arborists alike. This book offers an in-depth look at a tree's physiologic response to wounding, helping arborists to understand wound reactions of bark, cambium, and wood, as well as the factors that influence the tree's response. To help readers understand the complex responses more easily, the authors further developed Alex Shigo's 1977 CODIT Model into the broader CODIT Principle, which describes the reactions from injury to rot encapsulation as a series of phases. The CODIT Principle clarifies why some wounds have problematic consequences for the tree while others do not. (English translation from German, Das CODIT-Prinzip) (©2015, softcover, 162 pp.) By Dirk Dujesiefken and Walter Liese
  • This well-illustrated book with numerous color photographs will help tree professionals build on their knowledge and application of current industry standards, including the American National Standards Institute's ANSI A300(Part 1): Tree Pruning and ISA's Best Management Practices: Tree Pruning. It describes an approach to pruning that reduces risk by promoting a sound tree structure that resists failure, provides clearance, and improves aesthetics. (©2013, softcover, 83 pp., color photographs, glossary, appendices) By Edward F. Gilman, Brian Kempf, Nelda Matheny, and Jim Clark
  • Documenting Evidence: Practical Guidance for Arborists, by Julian A. Dunster, Foreword by Nelda MathenyIf your work requires that you collect information (evidence) and analyze it to form opinions and prepare reports or testify, this book is for you. The framework and principles described will help professionals performing a variety of services including testifying as an expert, diagnosing problems, resolving disputes, completing accident reports, and even assessing trees. Key ideas are clearly illustrated, often in a case study type of format, with illustrative photographs and graphics.(©2014, softcover, spiralbound, 54 pp.) By Julian A. Dunster
  • This edition from the Visual Identification Series by Urban Forestry LLC was created to simplify the pruning process for small and young trees. Designed for use in the field, an easy to learn and recall acronym-based methodology directs you where to start, what branches to prune, and when you are finished. It is intended for a wide range of users, from tree workers who may have little or no experience pruning trees, to professional arborists and landscapers. By Andrew G. Pleninger and Christopher J. Luley
  • 2017 ANSI Z133The Z133 Safety Standard was developed for the arboriculture industry under the procedures of the American National Standards Institute. The 2017 revision provides the most current criteria in the United States for arborists and other workers engaged in arboricultural operations:
    • General safety
    • Electrical hazard
    • Use of vehicles and mobile equipment
    • Portable power hand tools
    • Hand tools and ladders
    • Climbing
    • Work procedures
    This publication provides an essential guide for federal, state, and municipal authorities in drafting regulations. (©2017, softcover, ten annexes, glossary, index, 74 pp.)
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