LOUISIANA ARBORIST EXAM PREP 2025/2026 |
COMPLETE EXAM GUIDE WITH VERIFIED
QUESTIONS, ANSWERS
1. Describe the function of antitranspirants in tree care and their impact on
plant health.
Antitranspirants promote root growth by enhancing nutrient uptake.
Antitranspirants increase soil pH to improve nutrient availability.
Antitranspirants protect trees from insect infestations.
Antitranspirants reduce water loss through transpiration, helping
trees maintain hydration.
2. What happens to iron and manganese availability to trees when soil pH is
too alkaline?
They become more soluble and available to trees.
They are absorbed more efficiently by tree roots.
They may be in a chemical form that is unavailable to trees.
They are converted into nitrogen compounds.
3. What is the definition of a branch collar in tree anatomy?
The section of the trunk that supports the crown.
The point where roots extend from the trunk.
The outer layer of bark on a tree.
The area where a limb or branch joins the trunk and xylem tissues
,are interwoven.
,4. What term describes the phenomenon where a pest population increases
significantly due to the lack of natural predators?
Ecosystem Imbalance
Pest Outbreak
Biological Control
Pest Resurgence
5. What is the term used to describe the excess that can cause wilting,
marginal burning, and dieback in trees?
Waterlogging
Fertilizer salts
Nutrient deficiency
Soil compaction
6. If a landscape is designed to require minimal maintenance and year-round
greenery, which type of trees should be primarily selected?
Flowering trees
Evergreen trees
Fruit-bearing trees
Deciduous trees
7. Discuss the reasons why wound dressings or paint are not recommended
after pruning cuts.
Wound dressings help trees heal faster by sealing the cuts.
, Wound dressings or paint are not recommended because studies
indicate they do not aid in the healing process and may even
hinder natural healing.
Wound dressings are necessary to protect against pests and
diseases.
Wound dressings are only needed for trees that are over 10 years
old.
8. If a tree is showing signs of nutrient deficiency, how might understanding
the soil food web help in addressing this issue?
By focusing solely on above-ground tree care.
By identifying and enhancing beneficial organisms that improve
nutrient availability.
By removing all soil organisms to prevent competition.
By applying chemical fertilizers without considering soil organisms.
9. Traditional, tar-based wound dressings used on wounds created during
pruning
prevent insect infestations
aid in the wound closure
prevent decay
can be detrimental to plant health
10. Why is it important to place construction fences far from the trunk of a
tree?
To allow for easier construction access.
To prevent soil erosion around the tree.
COMPLETE EXAM GUIDE WITH VERIFIED
QUESTIONS, ANSWERS
1. Describe the function of antitranspirants in tree care and their impact on
plant health.
Antitranspirants promote root growth by enhancing nutrient uptake.
Antitranspirants increase soil pH to improve nutrient availability.
Antitranspirants protect trees from insect infestations.
Antitranspirants reduce water loss through transpiration, helping
trees maintain hydration.
2. What happens to iron and manganese availability to trees when soil pH is
too alkaline?
They become more soluble and available to trees.
They are absorbed more efficiently by tree roots.
They may be in a chemical form that is unavailable to trees.
They are converted into nitrogen compounds.
3. What is the definition of a branch collar in tree anatomy?
The section of the trunk that supports the crown.
The point where roots extend from the trunk.
The outer layer of bark on a tree.
The area where a limb or branch joins the trunk and xylem tissues
,are interwoven.
,4. What term describes the phenomenon where a pest population increases
significantly due to the lack of natural predators?
Ecosystem Imbalance
Pest Outbreak
Biological Control
Pest Resurgence
5. What is the term used to describe the excess that can cause wilting,
marginal burning, and dieback in trees?
Waterlogging
Fertilizer salts
Nutrient deficiency
Soil compaction
6. If a landscape is designed to require minimal maintenance and year-round
greenery, which type of trees should be primarily selected?
Flowering trees
Evergreen trees
Fruit-bearing trees
Deciduous trees
7. Discuss the reasons why wound dressings or paint are not recommended
after pruning cuts.
Wound dressings help trees heal faster by sealing the cuts.
, Wound dressings or paint are not recommended because studies
indicate they do not aid in the healing process and may even
hinder natural healing.
Wound dressings are necessary to protect against pests and
diseases.
Wound dressings are only needed for trees that are over 10 years
old.
8. If a tree is showing signs of nutrient deficiency, how might understanding
the soil food web help in addressing this issue?
By focusing solely on above-ground tree care.
By identifying and enhancing beneficial organisms that improve
nutrient availability.
By removing all soil organisms to prevent competition.
By applying chemical fertilizers without considering soil organisms.
9. Traditional, tar-based wound dressings used on wounds created during
pruning
prevent insect infestations
aid in the wound closure
prevent decay
can be detrimental to plant health
10. Why is it important to place construction fences far from the trunk of a
tree?
To allow for easier construction access.
To prevent soil erosion around the tree.
