Louisiana Arborist Exam with complete
solutions
Discuss the differences between "flush cuts" and proper cuts made to outer
portions of branch collar. How do "flush cuts" affect growth? - ** VERIFIED
ANSWERS **✔✔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. - ** VERIFIED
ANSWERS **✔✔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). - ** VERIFIED ANSWERS **✔✔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? - **
VERIFIED ANSWERS **✔✔It decreases root growth. You should avoid pruning
except for broken or damaged limbs.
Are there advantages of pruning a tree at planting time? - ** VERIFIED
ANSWERS **✔✔No
What is the major objective in crown cleaning? - ** VERIFIED ANSWERS **✔✔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. - ** VERIFIED ANSWERS
**✔✔Broadcasting, drill hole, injection, foliar application, and implants
Are wound dressings or paint recommended after making pruning cuts?
Why? - ** VERIFIED ANSWERS **✔✔No, studies show it does no good.
What is the purpose of crown restoration? - ** VERIFIED ANSWERS
**✔✔Improves structure and appearance of improperly pruned or storm-
damaged trees by encouraging new growth.
List 3 ways cavities are started in trees. - ** VERIFIED ANSWERS **✔✔Insects,
lightning, and wounds.
What is the definition of a tree? - ** VERIFIED ANSWERS **✔✔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. - ** VERIFIED ANSWERS
**✔✔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? - ** VERIFIED ANSWERS **✔✔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. -
** VERIFIED ANSWERS **✔✔Safety glasses, earplugs, face shield, hard hat, leg
protection, and boots.
, List the major parts of a tree and their function. - ** VERIFIED ANSWERS
**✔✔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? - **
VERIFIED ANSWERS **✔✔The 1st year to focus on root establishment.
What are the benefits of mulching a young tree? - ** VERIFIED ANSWERS
**✔✔To conserve moisture, reduce competition from weeds and grass,
improve soil structure, and aesthetic value.
List 3 benefits of mulch. - ** VERIFIED ANSWERS **✔✔1) Retains moisture.
2) Reduces weeds.
3) Insulates roots.
Why is the use of spurs prohibited on living trees? - ** VERIFIED ANSWERS
**✔✔It causes wounds and damages the tree.
What is chlorosis in a tree and how is it treated? - ** VERIFIED ANSWERS
**✔✔The yellowing of leaves can be treated with Manganese.
Why is it recommended to use a block when lowering a heavy limb? - **
VERIFIED ANSWERS **✔✔To carry the load and reduce injury to a crotch from a
climber's line.
Describe how to cut down a large limb. - ** VERIFIED ANSWERS **✔✔Place the
rigging point above the work, tie the limb at the butt, then cut and lower the
limb to the ground.
solutions
Discuss the differences between "flush cuts" and proper cuts made to outer
portions of branch collar. How do "flush cuts" affect growth? - ** VERIFIED
ANSWERS **✔✔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. - ** VERIFIED
ANSWERS **✔✔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). - ** VERIFIED ANSWERS **✔✔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? - **
VERIFIED ANSWERS **✔✔It decreases root growth. You should avoid pruning
except for broken or damaged limbs.
Are there advantages of pruning a tree at planting time? - ** VERIFIED
ANSWERS **✔✔No
What is the major objective in crown cleaning? - ** VERIFIED ANSWERS **✔✔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. - ** VERIFIED ANSWERS
**✔✔Broadcasting, drill hole, injection, foliar application, and implants
Are wound dressings or paint recommended after making pruning cuts?
Why? - ** VERIFIED ANSWERS **✔✔No, studies show it does no good.
What is the purpose of crown restoration? - ** VERIFIED ANSWERS
**✔✔Improves structure and appearance of improperly pruned or storm-
damaged trees by encouraging new growth.
List 3 ways cavities are started in trees. - ** VERIFIED ANSWERS **✔✔Insects,
lightning, and wounds.
What is the definition of a tree? - ** VERIFIED ANSWERS **✔✔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. - ** VERIFIED ANSWERS
**✔✔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? - ** VERIFIED ANSWERS **✔✔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. -
** VERIFIED ANSWERS **✔✔Safety glasses, earplugs, face shield, hard hat, leg
protection, and boots.
, List the major parts of a tree and their function. - ** VERIFIED ANSWERS
**✔✔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? - **
VERIFIED ANSWERS **✔✔The 1st year to focus on root establishment.
What are the benefits of mulching a young tree? - ** VERIFIED ANSWERS
**✔✔To conserve moisture, reduce competition from weeds and grass,
improve soil structure, and aesthetic value.
List 3 benefits of mulch. - ** VERIFIED ANSWERS **✔✔1) Retains moisture.
2) Reduces weeds.
3) Insulates roots.
Why is the use of spurs prohibited on living trees? - ** VERIFIED ANSWERS
**✔✔It causes wounds and damages the tree.
What is chlorosis in a tree and how is it treated? - ** VERIFIED ANSWERS
**✔✔The yellowing of leaves can be treated with Manganese.
Why is it recommended to use a block when lowering a heavy limb? - **
VERIFIED ANSWERS **✔✔To carry the load and reduce injury to a crotch from a
climber's line.
Describe how to cut down a large limb. - ** VERIFIED ANSWERS **✔✔Place the
rigging point above the work, tie the limb at the butt, then cut and lower the
limb to the ground.
