ISA Announces 2015 Awards of Distinction

Arborists, scientists, and tree care specialists are recognized by ISA for global contributions to arboriculture.

CHAMPAIGN, ILLINOIS (AUGUST 2015) - The International Society of Arboriculture (ISA), the world leader in tree research, education, and best tree care practices, has announced nine recipients for the 2015 Awards of Distinction, sponsored by Bartlett Tree Experts.

The Awards of Distinction were presented in a special ceremony on Sunday, August 9th, at the ISA 91st Annual International Conference and Trade Show, held in Orlando, Florida. The winners include: 

  • Daniele Zanzi — Award of Merit (Varese, Italy)
  • Chris Luley — R.W. Harris Author’s Citation (Naples, New York, US)
  • Dr. Andrew Koeser — Early-Career Scientist Award (Apollo Beach, Florida, US)
  • Greg Dahle — Early-Career Scientist Award (Morgantown, West Virgina, US)
  • David Nowak — L.C. Chadwick Award for Arboricultural Research (Syracuse, New York, US)
  • Dr. Nina Bassuk — Alex. L. Shigo Award for Excellence in Arboricultural Education (Ithaca, New York, US)
  • Richard Harper — Award of Achievement (Amherst, Massachusetts, US)
  • Mark Bridge — Millard F. Blair Exceptional Contribution to Practical Arboriculture Award (Basel, Switzerland)
  • Daniel Diodati — Honorary Life Membership (Montreal, Quebec, Canada)

“This year’s recipients represent the many advancements in the field of arboriculture through education and technology,” said Mark Roberts, ISA board president. “These men and women are dedicating their lives to expanding knowledge and supporting the transfer of information worldwide.”

Some highlights of this group’s accomplishments include:

  • Advocate for the international component of the ISA and spreading arboriculture education worldwide (Zanzi)
  • Author of three popular arborist guide books and multiple technical articles that have been published in ISA publications (Luley)
  • Mentor and advocate for students and continually works to educate new scientists and professionals entering the field of arboriculture (Dahle)
  • Gifted in the ability to effectively present his research in technical publications and presentations demonstrating an understanding of the importance of technology transfer (Koeser)
  • Paved the way for current research on assessment and quantification of ecosystem services provided by urban forests through participation in the Chicago Urban Forest Climate Project, and has impacted urban forestry research and policy through his work with i-Tree (Nowak)
  • Influence on improving the quality of urban life by enhancing the functions of plants within the urban ecosystem (Bassuk)
  • Instrumental in implementing an annual Arborist Certification Training programme in his chapter for tree workers wishing to become ISA Certified Arborists (Harper)
  • Combines his practical experience, training abilities, and equipment research to teach climbing and rigging techniques to thousands of arborists around the world (Bridge)
  • Dedicated to making ISA publications and the latest in arboricultural research available to practitioners in the French-speaking world (Diodati)

“Regardless of size or location, every tree care company benefits when individuals endeavor to further our industry through education, science and technology,” added Robert Bartlett Jr., chairman and CEO of Bartlett Tree Experts. “That’s why I continue to believe it is vitally important to support the Awards of Distinction and recognize outstanding work like that of this year’s recipients.”

ISA, an organisation of more than 30,000 members and credential holders worldwide, has been honoring members and industry professionals with the Awards of Distinction since 1963. This year’s categories recognize candidates in such areas as research, education, and advancing the best practices of proper tree care in the industry. The winners are selected by the ISA Awards Committee, a diverse group of experts in arboriculture including university professors, retired arborists, owners of tree care companies, and forestry managers, and approved by ISA’s Board of Directors.

About ISA
The International Society of Arboriculture (ISA), headquartered in Champaign, Ill., U.S., is a nonprofit organisation supporting tree care research and education around the world. To promote the importance of arboriculture, ISA manages the newly re-launched consumer education web site,, which fulfills the association’s mission to help educate the public about the importance and value of proper tree care. Also, as part of ISA’s dedication to the care and preservation of shade and ornamental trees, it offers the only internationally-recognized certification programme in the industry. For more information on ISA and Certified Arborists, visit

About Bartlett Tree Experts 
The F.A. Bartlett Tree Expert Company was founded in 1907 by Francis A. Bartlett and is the world’s leading scientific tree and shrub care company. The organisation’s current chairman, Robert A. Bartlett Jr., represents the third generation of Bartlett family management. Bartlett has locations in 27 U.S. states, Canada, Ireland and Great Britain. Services include pruningpest and disease managementfertilisation and soil managementcabling and bracingtree lightning protection systems and tree/stump removal. Its corporate offices are located in Stamford, Connecticut.  

For more information, contact:

Julie Gaier

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