1|Page
LOUISIANA ARBORIST EXAM ||VERIFIED EXAM
NEWEST 2026 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||NEWEST EXAM!!!||
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.
,2|Page
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 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.
,3|Page
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
, 4|Page
What is the most critical time after transplanting a tree and
why? - Answer-The 1st year to focus on root
establishment.
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.
What other activities can a climbing rope be used for? -
Answer-To secure a climber to the tree for use of 2-hands,
to swing, and for rescue.
LOUISIANA ARBORIST EXAM ||VERIFIED EXAM
NEWEST 2026 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+|
||NEWEST EXAM!!!||
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.
,2|Page
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 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.
,3|Page
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
, 4|Page
What is the most critical time after transplanting a tree and
why? - Answer-The 1st year to focus on root
establishment.
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.
What other activities can a climbing rope be used for? -
Answer-To secure a climber to the tree for use of 2-hands,
to swing, and for rescue.
