CONFERENCE SPEAKERS
Mark Hartley
Owner, The Arborist Network (Aus)
SPEAKER BIO
Mark Hartley is a second-generation Australian arborist with a career spanning over four decades. Mark has received the ISA’s Award of Merit for his contributions to arboriculture and has received six Awards of Excellence in Arboriculture from the TCIA for his expertise in transplanting and tree pruning.
His expertise in tree risk assessment, anatomy, diseases, and transplanting has resulted in his providing arboricultural services in 10 countries across three continents. He has provided advice to householders, celebrities, and Royalty alike.
Mark has always been passionate about learning and continues to study in Australia and overseas. He was a regular at Shigo’s tree anatomy workshops, where he developed a love for tree anatomy and everyday tree physiology. His curiosity, systems thinking, and problem-solving nature have enabled him to develop innovative solutions for tree transplanting and stem wound treatment.
Having served as the Education Chair of Arboriculture Australia for over a decade, Mark is dedicated to enhancing education in arboriculture. He regularly spends time delivering workshops and training globally. Mark’s enthusiasm for arboriculture and engaging and dynamic delivery style will leave you wanting more.
TALK TITLE
Problems with Tree Risk Assessment – An Australian Perspective
ABSTRACT
Tree risk assessment is a rapidly growing field for consulting arborists worldwide. In Australia, its importance has surged, driven by increasing public concern about tree safety and a heightened awareness of potential litigation among professionals. Despite many Australian assessors holding multiple qualifications, errors, misunderstandings, and miscommunications continue to be prevalent. These errors are not only evident among the public and media, but alarmingly, within the profession itself.
This presentation looks at common issues encountered in tree risk assessments. It offers practical insights to help consultants improve their assessments and communication strategies. By learning from these problems, professionals can avoid common pitfalls and contribute to a more informed and responsible approach to assessing tree risks.