ISA Arborist Study Guide Sample Test
Questions and Answers
Bark, phloem, cambium, xylem - ANS-When cutting through a tree with a chain saw or
drilling into a tree, you would pass through (in order)
The climate factor that determines hardiness zones is: - ANS-Low temperature
extremes
Trees planted under utility lines should be: - ANS-Low growing to remain below the
lines.
Some trees acclimate to shade conditions by: - ANS-Developing larger and thinner
leaves, and variegated foliage losing variegation, or colored foliage tending to be
greener.
Fastigiate trees have a growth form that is: - ANS-Upright
This is a true statement: - ANS-Some tree species are adapted to hot, dry, or bright light
conditions with small , thick foliage and sicken stomata.
Staking or giving when planting a tree is: - ANS-Not always required or necessary.
Planting a row of palms at various depths to create a row of uniform height: - ANS-Can
lead to death of the deeply planted trees.
Placing gravel in the bottom of the planting joke in a clay soil site will: - ANS-Restrict soil
space and create a perched water table.
When planting a container tree: - ANS-Seperate and tease apart the roots to reduce
girdling root formation.
Most important reason to prune a tree when transplanting is to: - ANS-To remove
structurally weak or damaged branches.
When pruning young trees, why have a dominate leader and well spaces scaffolding. -
ANS-Minimize future pruning, structurally strong, codominate branching can be avoided
To prune trees that flower on previous years growth and max flowering, you should
prune: - ANS-Shortly after flowering.
, When pruning a branch from a tree, the final cut should be: - ANS-Just outside the
branch collar.
When it comes to pruning, as a rule, mature trees: - ANS-Not tolerant of severe pruning
If the height of the tree needs to be reduced. - ANS-Branches should be removed at
their point of origin or to a lateral large enough to assume.
Advantage of Amon-eye system over eye bolt: - ANS-Length of rod can be adjusted
Purpose of a lightning protection system: - ANS-Conduct the electrical charge into the
soil away from the tree.
If two bracing rods are installed to support a weak Union, they should be placed: - ANS-
Staggered, and no closer together than the diameter of the trunk.
If a lag hook is installed into decayed wood, - ANS-Holding power will be reduced,
decay may be detected when drilling, decay will spread along the lag
When cabling a multi stemmed tree, extra support can be added by: - ANS-Cabling the
limbs together in triangular combinations.
A condition with a cluster of dwarfed shoots on affected twigs: - ANS-Witch's broom
Twig dieback from periodical cicadas is primarily a result of: - ANS-Ovipositing, egg-
laying
Plant damage associated with a sap-feeding insect pest might appear as: - ANS-
Distorted leaves or shoots.
Scale damage to plants is the result of: - ANS-Phloem-feeding insects causing a loss of
vigor
Damage caused by non-living factors tend to be: - ANS-Uniform with definite borders
Plant Health Care is a comprehensive program to manage: - ANS-The appearance,
health, structure of plants.
Mortality spiral describes the: - ANS-Cumulative effects of stress causing decline of a
plant over time.
Process of gathering information, assessing problems, determine client expectations,
and coarse of action is: - ANS-Appropriate response process
Systematic pesticide is one that: - ANS-Is translocated throughout the plant.
Questions and Answers
Bark, phloem, cambium, xylem - ANS-When cutting through a tree with a chain saw or
drilling into a tree, you would pass through (in order)
The climate factor that determines hardiness zones is: - ANS-Low temperature
extremes
Trees planted under utility lines should be: - ANS-Low growing to remain below the
lines.
Some trees acclimate to shade conditions by: - ANS-Developing larger and thinner
leaves, and variegated foliage losing variegation, or colored foliage tending to be
greener.
Fastigiate trees have a growth form that is: - ANS-Upright
This is a true statement: - ANS-Some tree species are adapted to hot, dry, or bright light
conditions with small , thick foliage and sicken stomata.
Staking or giving when planting a tree is: - ANS-Not always required or necessary.
Planting a row of palms at various depths to create a row of uniform height: - ANS-Can
lead to death of the deeply planted trees.
Placing gravel in the bottom of the planting joke in a clay soil site will: - ANS-Restrict soil
space and create a perched water table.
When planting a container tree: - ANS-Seperate and tease apart the roots to reduce
girdling root formation.
Most important reason to prune a tree when transplanting is to: - ANS-To remove
structurally weak or damaged branches.
When pruning young trees, why have a dominate leader and well spaces scaffolding. -
ANS-Minimize future pruning, structurally strong, codominate branching can be avoided
To prune trees that flower on previous years growth and max flowering, you should
prune: - ANS-Shortly after flowering.
, When pruning a branch from a tree, the final cut should be: - ANS-Just outside the
branch collar.
When it comes to pruning, as a rule, mature trees: - ANS-Not tolerant of severe pruning
If the height of the tree needs to be reduced. - ANS-Branches should be removed at
their point of origin or to a lateral large enough to assume.
Advantage of Amon-eye system over eye bolt: - ANS-Length of rod can be adjusted
Purpose of a lightning protection system: - ANS-Conduct the electrical charge into the
soil away from the tree.
If two bracing rods are installed to support a weak Union, they should be placed: - ANS-
Staggered, and no closer together than the diameter of the trunk.
If a lag hook is installed into decayed wood, - ANS-Holding power will be reduced,
decay may be detected when drilling, decay will spread along the lag
When cabling a multi stemmed tree, extra support can be added by: - ANS-Cabling the
limbs together in triangular combinations.
A condition with a cluster of dwarfed shoots on affected twigs: - ANS-Witch's broom
Twig dieback from periodical cicadas is primarily a result of: - ANS-Ovipositing, egg-
laying
Plant damage associated with a sap-feeding insect pest might appear as: - ANS-
Distorted leaves or shoots.
Scale damage to plants is the result of: - ANS-Phloem-feeding insects causing a loss of
vigor
Damage caused by non-living factors tend to be: - ANS-Uniform with definite borders
Plant Health Care is a comprehensive program to manage: - ANS-The appearance,
health, structure of plants.
Mortality spiral describes the: - ANS-Cumulative effects of stress causing decline of a
plant over time.
Process of gathering information, assessing problems, determine client expectations,
and coarse of action is: - ANS-Appropriate response process
Systematic pesticide is one that: - ANS-Is translocated throughout the plant.
