Arborists Qualifications

Experience working safely and effectively in and around trees is essential. Arborists tend to specialize in one or more disciplines of arboriculture, such as diagnosis and treatment, climbing and pruning, cabling and lightning protection, or perhaps consultation and report writing. All these disciplines are related and some arborists are ... More


Arborists generally focus on the health and safety of individual plants and trees, rather than managing forests (the domains of Forestry and Silviculture) or harvesting wood. An arborist's scope of work is therefore distinct from that of either a forester or a logger, though the professions share much in common. Scope of work: To work ... More

Consulting Arborists

The body responsible for certification of a Consulting Arborist (giving the RCA or Registered Consulting Arborist) is the ASCA(American Society of Consulting Arborists). An arborist, or (less commonly) arboriculturist, is a professional in the practice of arboriculture, which is the cultivation, management, and study of individual trees, ... More

Cultural Tree Practices

Arborists can provide appropriate solutions, such as pruning trees for health and good structure, for aesthetic reasons, and to permit people to walk under them (a technique often referred to as "crown raising"), or to keep them away from wires, fences and buildings (a technique referred to as "crown reduction"). Timing and methods of ... More

Legal Issues

Arborists are frequently consulted to establish the factual basis of disputes involving trees, or by private property owners seeking to avoid legal liability through the duty of care. Arborists may be asked to assess the value of a tree in the process of an insurance claim for trees damaged or destroyed, or to recover damages resulting ... More


It has more than 2,000 member companies representing over a dozen countries. TCIA's Accreditation program certifies that tree care companies that have been inspected and accredited based on adherence to industry standards for performance and safety; maintenance of trained, professional staff; and dedication to ethics and quality in ... More

Notable Arborists

Francis A. Bartlett – founded the world’s leading scientific tree and shrub care company in 1907. Franz Borsova – co-founder of the National Arborists Association of Australia. John Chapman – pioneering U.S. frontier nurseryman and orchardist, commonly known as Johnny Appleseed. Richard Essam – head of the Ontario Union ... More