ISA Certified Arborist examPass the ISA arborist exam.

1. 1Tree biology4

   1. CODIT: how trees wall off decay
   2. Roots, xylem and phloem
   3. Photosynthesis and stored energy
   4. Response growth and reaction wood
   11%
2. 2Identification and soil4

   Tree Identification and Selection; Soil Management

   1. Identifying trees by leaf and twig
   2. Right tree, right place
   3. Soil texture, pH and compaction
   4. Water, nutrients and fertilizer
   16%
3. 3Planting and young trees3

   Installation and Establishment

   1. Finding the root flare
   2. Planting depth and the hole
   3. Mulch, water and staking
   9%
4. 4Pruning5

   1. Cutting at the branch collar
   2. Removal, reduction and heading cuts
   3. Pruning young trees for structure
   4. Why topping harms trees
   5. Pruning to ANSI A300
   14%
5. 5Diagnosis and plant health care3

   Diagnosis and Treatment

   1. Diagnosing a declining tree
   2. Insects, diseases and abiotic damage
   3. Plant health care and IPM
   9%
6. 6Construction and urban forests4

   Trees and Construction; Urban Forestry

   1. Tree protection zones
   2. Trenching, grading and root loss
   3. Urban forest benefits and appraisal
   4. Tree ordinances and laws
   15%
7. 7Tree risk3

   1. Targets, defects and likelihood
   2. Three levels of risk assessment
   3. Cracks, decay and codominant stems
   11%
8. 8Safe work practices8

   1. ANSI Z133 and your PPE
   2. Working near power lines
   3. Chainsaws, chippers and aerial lifts
   4. Climbing and rigging basics
   5. Felling a tree safely
   6. Aerial rescue and first aid
   7. How to qualify for the exam
   8. Test day
   15%

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