1|Page
LOUISIANA ARBORIST EXAM NEWEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
In the cross-section of a tree trunk, what tissues are present and
what are the functions of each? - ANSWER-Xylem (wood cells)-
conveys water and dissolved minerals throughout the tree and
provides support.
Phloem (bast tissues)- transports the soluble organic compounds
made during photosynthesis, in particular the sugar sucrose, to
the rest of the tree. It is the inner-most layer of bark.
Cambrium - the layer of plant tissue, between the Xylem and
Phloem, responsible for the secondary growth of roots and stems
by producing new xylem and phloem cells.
When removing a dead limb over 2 in. in diameter, where is the
removal cut made? - ANSWER-Outside of the collar or around the
dead branch stub if it contains live trunk wood.
,2|Page
Explain CODIT. - ANSWER-When a tree is wounded, cells
undergo changes to form "walls" around the wound, slowing or
preventing the spread of disease and decay to the rest of the tree.
What is a branch collar? - ANSWER-the area where a limb or
branch joins the trunk and xylem tissues are interwoven.
Name the two parts of a scientific name. - ANSWER-Genus and
species.
Name the spaces between soil particles. - ANSWER-Pore
spaces, micropores (water), macropores (oxygen).
When can spurs be used to climb trees? - ANSWER-To perform a
rescue, to remove the tree, or with written permission from the
owner.
Short, shallow, and frequent irrigation is better than long, deep,
infrequent irrigation? - ANSWER-False
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List the benefits of mulch. - ANSWER-Maintain moisture, control
weeds, insulation, aeration, aesthetic value, and reduce soil
pathogens.
List 3 natural, organic fertilizers. - ANSWER-Bone and blood
meal, manure, and sewer sludge.
Using 2 lbs. of actual N per 1,000 sq. ft. with a 13-13-13 fertilizer,
how much would you need to cover 2,000 sq. ft.? - ANSWER-2
lbs of N / .13 (Fertilizer = 15.4 lbs. of fertilizer
15.4 * 2 = 30.8 lbs. of fertilizer
What should you know about a tree before you plant or
recommend it to a customer? - ANSWER-Size limits, growth rate,
hardiness, form, soil pH, adaptability, disease/insect resistance.
Fertilizer is always recommended at the time of planting. -
ANSWER-False
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Where along the branch, should a pruning cut be made? -
ANSWER-Outside of the branch collar.
What is the purpose of dead wooding? - ANSWER-To remove
dead, diseased, or dying limbs. This increases air circulation and
improves beauty.
What are some problems associated with topping or heading back
a tree? - ANSWER-1) Removes much of the leaf surface area
needed to produce food and the food storage reserves.
2) Leaves large wounds that are slow to heal and becomes entry
points for insects and disease organisms.
3) Allows strong sunlight to enter the central parts of the tree,
resulting in sunscald, cracks and peeling bark.
Are the use of wound dressings beneficial? - ANSWER-No
Name or describe 3 cabling techniques. - ANSWER-Direct,
triangular, and box or rotary.
LOUISIANA ARBORIST EXAM NEWEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED||
In the cross-section of a tree trunk, what tissues are present and
what are the functions of each? - ANSWER-Xylem (wood cells)-
conveys water and dissolved minerals throughout the tree and
provides support.
Phloem (bast tissues)- transports the soluble organic compounds
made during photosynthesis, in particular the sugar sucrose, to
the rest of the tree. It is the inner-most layer of bark.
Cambrium - the layer of plant tissue, between the Xylem and
Phloem, responsible for the secondary growth of roots and stems
by producing new xylem and phloem cells.
When removing a dead limb over 2 in. in diameter, where is the
removal cut made? - ANSWER-Outside of the collar or around the
dead branch stub if it contains live trunk wood.
,2|Page
Explain CODIT. - ANSWER-When a tree is wounded, cells
undergo changes to form "walls" around the wound, slowing or
preventing the spread of disease and decay to the rest of the tree.
What is a branch collar? - ANSWER-the area where a limb or
branch joins the trunk and xylem tissues are interwoven.
Name the two parts of a scientific name. - ANSWER-Genus and
species.
Name the spaces between soil particles. - ANSWER-Pore
spaces, micropores (water), macropores (oxygen).
When can spurs be used to climb trees? - ANSWER-To perform a
rescue, to remove the tree, or with written permission from the
owner.
Short, shallow, and frequent irrigation is better than long, deep,
infrequent irrigation? - ANSWER-False
,3|Page
List the benefits of mulch. - ANSWER-Maintain moisture, control
weeds, insulation, aeration, aesthetic value, and reduce soil
pathogens.
List 3 natural, organic fertilizers. - ANSWER-Bone and blood
meal, manure, and sewer sludge.
Using 2 lbs. of actual N per 1,000 sq. ft. with a 13-13-13 fertilizer,
how much would you need to cover 2,000 sq. ft.? - ANSWER-2
lbs of N / .13 (Fertilizer = 15.4 lbs. of fertilizer
15.4 * 2 = 30.8 lbs. of fertilizer
What should you know about a tree before you plant or
recommend it to a customer? - ANSWER-Size limits, growth rate,
hardiness, form, soil pH, adaptability, disease/insect resistance.
Fertilizer is always recommended at the time of planting. -
ANSWER-False
, 4|Page
Where along the branch, should a pruning cut be made? -
ANSWER-Outside of the branch collar.
What is the purpose of dead wooding? - ANSWER-To remove
dead, diseased, or dying limbs. This increases air circulation and
improves beauty.
What are some problems associated with topping or heading back
a tree? - ANSWER-1) Removes much of the leaf surface area
needed to produce food and the food storage reserves.
2) Leaves large wounds that are slow to heal and becomes entry
points for insects and disease organisms.
3) Allows strong sunlight to enter the central parts of the tree,
resulting in sunscald, cracks and peeling bark.
Are the use of wound dressings beneficial? - ANSWER-No
Name or describe 3 cabling techniques. - ANSWER-Direct,
triangular, and box or rotary.
