{2025}Isa Certified Arborist Chapter 12 (Tree Assessment And Risk Management) 100% Correct.

{2025}ISA CERTIFIED ARBORIST CHAPTER 12 (TREE ASSESSMENT AND RISK MANAGEMENT) 100% CORRECT.




1. List the three components of risk assessment. potential for failure
environment that may contribute to
failure
potential target

2. By definition, if there is no , a tree cannot target
pose a risk.

3. When performing a tree assessment, it is impor- systematic
tant to develop and stick to a process.

4. For structural strength, branches should be
7. Trees that have
in diameter than their parent limbs or
grown in dense
trunk.
shade such as a
5. fungi primarily decay the lignin forest tend to have
within and between cell walls in the wood. long, straight stems
with little
6. Codominant stems often have .
within the branch union, making them struc-
turally less stable. 8. Trees often
produce

, {2025}ISA CERTIFIED ARBORIST CHAPTER 12 (TREE ASSESSMENT AND RISK MANAGEMENT) 100% CORRECT.




smaller
taper



white rot
reaction wood

included bark



9. Brown rot fungi primarily decay the , leav- cellulose
ing behind the stiff lignin and thereby reducing
the bending strength of the tree.

10. basal rot (butt rot)