LOUISIANA ARBORIST ACTUAL EXAM
QUESTIONS AND ANSWERS LATEST 2025-2026
EXAM UPDATE
What is the purpose of crown restoration? - Answer-Improves structure
and appearance of improperly pruned or storm-damaged trees by
encouraging new growth.
List 3 ways cavities are started in trees. - Answer-Insects, lightning, and
wounds.
What is the definition of a tree? - Answer-A woody perennial with one
or several trunks which grow higher than 12-15 ft in height.
List five species of trees to plant under a power line. - Answer-Crape
myrtle, chaste tree, red bud, silver bell, dogwood.
If you want to fertilize a tree by broadcasting 4 lbs. of actual nitrogen
and want to use 16-4-8 fertilizer, how often would you apply it over
,1000 sq. ft. in one year? - Answer-1 lb. of Nitrogen / .16 (N in fertilizer)
= 6.25 lbs per 1,000 ft.
6.25 lbs of Fertilizer x 4 lbs of N = 25 lbs of Fertilizer annually.
6.25 lbs. of 16-4-8 fertilizer should be applied 4 times a year.
List the most important pieces of safety equipment when using a
chainsaw. - Answer-Safety glasses, earplugs, face shield, hard hat, leg
protection, and boots.
List the major parts of a tree and their function. - Answer-Leaves -
photosynthesis, transpiration.
Trunk/Stems - conduct, support, storage.
Roots - anchorage, absorbing, storage, conduction.
Flowers - reproduction.
Fruit-ripened seed, pistil
What is the most critical time after transplanting a tree and why? -
Answer-The 1st year to focus on root establishment.
Discuss the differences between "flush cuts" and proper cuts made to
outer portions of branch collar. How do "flush cuts" affect growth? -
Answer-A proper cut leaves the branch bark ridge, branch collar, and
swollen collar in tact. It enables the cut to close in a circular fashion.
Flush cuts remove it and opens the tree to decay by removing dead wood
which branch defense zones form.
, Explain thinning cut and describe how they will affect the tree. -
Answer-It is removing the branch back to the lateral branch, large
enough to assume terminal role. It opens the tree, reduces weight,
reduces height, and retains its shape.
Discuss Shingo's theory of walling off infections in trees called CODIT
(Compartmentalization of Decay in Trees). - Answer-1) Trees are highly
compartmentalized.
2) If the tree is wounded, it will heal itself by walling itself off from
injury.
How will pruning a tree at time of transplanting affect tree growth? -
Answer-It decreases root growth. You should avoid pruning except for
broken or damaged limbs.
Are there advantages of pruning a tree at planting time? - Answer-No
What is the major objective in crown cleaning? - Answer-It removes
dead, diseased, and dying crowded or wealdy attached limbs from the
crown. the objective is to correct small growth problems before they get
big growth problems.
Name five methods used to apply fertilization to trees. - Answer-
Broadcasting, drill hole, injection, foliar application, and implants
, Are wound dressings or paint recommended after making pruning cuts?
Why? - Answer-No, studies show it does no good.
What are the benefits of mulching a young tree? - Answer-To conserve
moisture, reduce competition from weeds and grass, improve soil
structure, and aesthetic value.
List 3 benefits of mulch. - Answer-1) Retains moisture.
2) Reduces weeds.
3) Insulates roots.
Why is the use of spurs prohibited on living trees? - Answer-It causes
wounds and damages the tree.
What is chlorosis in a tree and how is it treated? - Answer-The
yellowing of leaves can be treated with Manganese.
Why is it recommended to use a block when lowering a heavy limb? -
Answer-To carry the load and reduce injury to a crotch from a climber's
line.
Describe how to cut down a large limb. - Answer-Place the rigging
point above the work, tie the limb at the butt, then cut and lower the limb
to the ground.
QUESTIONS AND ANSWERS LATEST 2025-2026
EXAM UPDATE
What is the purpose of crown restoration? - Answer-Improves structure
and appearance of improperly pruned or storm-damaged trees by
encouraging new growth.
List 3 ways cavities are started in trees. - Answer-Insects, lightning, and
wounds.
What is the definition of a tree? - Answer-A woody perennial with one
or several trunks which grow higher than 12-15 ft in height.
List five species of trees to plant under a power line. - Answer-Crape
myrtle, chaste tree, red bud, silver bell, dogwood.
If you want to fertilize a tree by broadcasting 4 lbs. of actual nitrogen
and want to use 16-4-8 fertilizer, how often would you apply it over
,1000 sq. ft. in one year? - Answer-1 lb. of Nitrogen / .16 (N in fertilizer)
= 6.25 lbs per 1,000 ft.
6.25 lbs of Fertilizer x 4 lbs of N = 25 lbs of Fertilizer annually.
6.25 lbs. of 16-4-8 fertilizer should be applied 4 times a year.
List the most important pieces of safety equipment when using a
chainsaw. - Answer-Safety glasses, earplugs, face shield, hard hat, leg
protection, and boots.
List the major parts of a tree and their function. - Answer-Leaves -
photosynthesis, transpiration.
Trunk/Stems - conduct, support, storage.
Roots - anchorage, absorbing, storage, conduction.
Flowers - reproduction.
Fruit-ripened seed, pistil
What is the most critical time after transplanting a tree and why? -
Answer-The 1st year to focus on root establishment.
Discuss the differences between "flush cuts" and proper cuts made to
outer portions of branch collar. How do "flush cuts" affect growth? -
Answer-A proper cut leaves the branch bark ridge, branch collar, and
swollen collar in tact. It enables the cut to close in a circular fashion.
Flush cuts remove it and opens the tree to decay by removing dead wood
which branch defense zones form.
, Explain thinning cut and describe how they will affect the tree. -
Answer-It is removing the branch back to the lateral branch, large
enough to assume terminal role. It opens the tree, reduces weight,
reduces height, and retains its shape.
Discuss Shingo's theory of walling off infections in trees called CODIT
(Compartmentalization of Decay in Trees). - Answer-1) Trees are highly
compartmentalized.
2) If the tree is wounded, it will heal itself by walling itself off from
injury.
How will pruning a tree at time of transplanting affect tree growth? -
Answer-It decreases root growth. You should avoid pruning except for
broken or damaged limbs.
Are there advantages of pruning a tree at planting time? - Answer-No
What is the major objective in crown cleaning? - Answer-It removes
dead, diseased, and dying crowded or wealdy attached limbs from the
crown. the objective is to correct small growth problems before they get
big growth problems.
Name five methods used to apply fertilization to trees. - Answer-
Broadcasting, drill hole, injection, foliar application, and implants
, Are wound dressings or paint recommended after making pruning cuts?
Why? - Answer-No, studies show it does no good.
What are the benefits of mulching a young tree? - Answer-To conserve
moisture, reduce competition from weeds and grass, improve soil
structure, and aesthetic value.
List 3 benefits of mulch. - Answer-1) Retains moisture.
2) Reduces weeds.
3) Insulates roots.
Why is the use of spurs prohibited on living trees? - Answer-It causes
wounds and damages the tree.
What is chlorosis in a tree and how is it treated? - Answer-The
yellowing of leaves can be treated with Manganese.
Why is it recommended to use a block when lowering a heavy limb? -
Answer-To carry the load and reduce injury to a crotch from a climber's
line.
Describe how to cut down a large limb. - Answer-Place the rigging
point above the work, tie the limb at the butt, then cut and lower the limb
to the ground.
