What is a Certified Arborist?

ISA (International Society of Arboriculture) Certified Arborists are individuals who have achieved a level of knowledge and experience in the art and science of tree care, and have passed a comprehensive examination. They are also required to continue their education in order to maintain their certification, ensuring their knowledge is updated on the latest arboriculture techniques.

ISA Arborist Certification includes the knowledge of:

  • Tree Biology
  • Soil Management
  • Tree Risk Assessment
  • Installation and Establishment
  • Tree Identification / Selection
  • Urban Forestry
  • Tree Protection
  • Pruning
  • Safe Work Practices
  • Diagnosis and Treatment

The most common reasons for contacting an arborist is a concern for the safety of a tree near a home or business (including after wind, snow or ice storms) or an assessment of the vitality of a tree.

Sometimes a tree has minor problems that proper pruning can correct. Sometimes tree removal may be recommended if a tree is in decline with the possibility of causing personal injury or property damage to, for example, a house or playground.

The tree may have an insect or disease problem that would require a customized plant health care plan specific to the needs of each tree.

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