1|Page
LOUISIANA ARBORIST EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
What are microscopic worms that sometimes feed on trees and
may carry diseases called? - ANSWER-Nematodes
Vascular diseases are rarely fatal to trees. - ANSWER-False
Diseases that affect only the foliage of a tree may not be a
serious problem unless defoliation occurs in several consecutive
years. - ANSWER-True
Most fungi cause plant disease. - ANSWER-False
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.
,2|Page
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
,3|Page
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.
, 4|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.
LOUISIANA ARBORIST EXAM LATEST 2026-2027 ACTUAL EXAM
WITH COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
(100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
What are microscopic worms that sometimes feed on trees and
may carry diseases called? - ANSWER-Nematodes
Vascular diseases are rarely fatal to trees. - ANSWER-False
Diseases that affect only the foliage of a tree may not be a
serious problem unless defoliation occurs in several consecutive
years. - ANSWER-True
Most fungi cause plant disease. - ANSWER-False
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.
,2|Page
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
,3|Page
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.
, 4|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.
