Andrew Koeser recognized with second international award from ISA

Three people standing on a stage.

Dr. Koeser (center) accepting the award at a ceremony in late July. Also in photo: Michelle Mitchell, ISA Past-President (left) and Lauren Lanphear, ISA Awards Committee Chair (right).

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Dr. Andrew Koeser writes popular guide books on state trees

CHAMPAIGN, Ill. U.S. (July 30, 2017) – Dr. Andrew Koeser of Wimauma, Florida, is this year's recipient of the International Society of Arboriculture's (ISA) R.W Harris Author's Citation Award. This Award of Distinction is given to authors who consistently publish timely and valuable content related to the field of arboriculture.

Click here for a video on Dr. Andrew Koeser on YouTube.

Koeser, an assistant professor of Environmental Horticulture at the University of Florida and faculty member of the Center for Landscape Conservation and Ecology (CLCE), is an ISA Board Certified Master Arborist® and is Tree Risk Assessment Qualified. This is the second time he has been recognized by ISA with an Award of Distinction. Koeser received the Early-Career Scientist Award in 2015.

"Dr. Koeser has enjoyed many accomplishmants in his young career," says Michelle Mitchell, ISA board president. "He is incredibly ambitious when it comes to his projects and publications. The industry looks forward to much more from him throughout his career."

According to Koeser, he truly loves to write. "I write every day even if only for an hour," says Koeser. "As authors, you must write – especially when you don't feel like it." He advises, "Writing each day requires less time spent picking up where you left off and allows for more time to be creative."

Among Koeser's highly-regarded contributions is a series of publications focusing on trees in Florida. Previous books on Florida trees lacked photos and were not designed for identification. "I am a visual learner and have a hard time with botanical line drawings," Koeser explained. "For our series of books, we made sure to shoot clear photographs of all of the key parts of a tree for easier identification." So far, the books in the series include Trees of North and Central Florida (released in 2014), Trees of South Florida (released 2017),and the third, Palms and Palm-like Plants of Florida, nearing completion.

Koeser also spends a lot of research time on the topic of tree risk assessment. He is currently working on a project with colleagues to develop a mobile app that will aid in risk assessment data collection and mapping. "I think the app project has the potential to gather the best user data needed to make a reasonable assessment of potential tree failure," he says. "The app is still in development and recent research results will go a long way toward advancing the project."

Koeser was recognized during the opening ceremony of the ISA Annual International Conference and Trade Show on Sunday, July 30 in Washington, D.C.  "We continue to provide our support to the Awards of Distinction because of the true difference individuals like these make – not only within our industry, but even more importantly, for the betterment of our communities and urban forests," states Robert Bartlett Jr., chairman and CEO of Bartlett Tree Experts, sponsor of The Awards of Distinction.  "Congratulations to this year's recipients and thank you to all those who work tirelessly to advance the field of arboriculture."

ISA, with more than 30,000 members and credential holders worldwide, has been honoring members and industry professionals with the Awards of Distinction since 1963. Nine categories recognize candidates in such areas as research, publishing, education, and advancing the cause of the organization. Nominations are reviewed by the ISA Awards Committee and winners are selected then presented to the ISA Board for approval.  

About the ISA

The International Society of Arboriculture (ISA), headquartered in Champaign, Ill., is a nonprofit organization supporting tree care research and education around the world. To promote the importance of arboriculture, ISA manages the 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 program in the industry. For more information on ISA and Certified Arborists, visit