Arborist Exam Preparation/Louisiana Arborist Exam
Practice Exam With Complete Questions And Correct
Answers| Brand New Version!
What state and federal licenses are required before an arborist applies
pesticides? - ans -State commissioned pesticide applicators license. Federal in
accordance with all federal regulations, may apply pesticides for the purpose of
retarding decay or disease.
What is soil pH and does it affect nutrient availability of a tree? - ans -The acidity
or alkalinity of the soil. Trees may exhibit nutrient deficiency or toxicity symptoms
from unbalanced soil pH levels.
What is Mistletoe and is it harmful to a tree? - ans -Mistletoe is a parasite that
grows in the branches of conifers and leeches nutrients away.
Is Spanish Moss harmful to a tree? - ans -Spanish Moss absorbs water and
nutrients, using other plants for support.
What type and how much insurance is an arborist required to have? - ans -
$25,000 - personal injury; $50,000 property damage.
What type of trees lose their leaves? - ans -Deciduous
In the cross-section of a tree trunk, what tissues are present and what are the
functions of each? - ans -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? - ans -Outside of the collar or around the dead branch stub if it contains
live trunk wood.
Explain CODIT. - ans -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? - ans -the area where a limb or branch joins the trunk and
xylem tissues are interwoven.
Name the two parts of a scientific name. - ans -Genus and species.
Name the spaces between soil particles. - ans -Pore spaces, micropores (water),
macropores (oxygen).
When can spurs be used to climb trees? - ans -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? - ans -False
List the benefits of mulch. - ans -Maintain moisture, control weeds, insulation,
aeration, aesthetic value, and reduce soil pathogens.
List 3 natural, organic fertilizers. - ans -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.? - ans -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? - ans -Size limits, growth rate, hardiness, form, soil pH, adaptability,
disease/insect resistance.
, Discuss the differences between "flush cuts" and proper cuts made to outer
portions of branch collar. How do "flush cuts" affect growth? - ans -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. - ans -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). - ans -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? - ans -It
decreases root growth. You should avoid pruning except for broken or damaged
limbs.
Are there advantages of pruning a tree at planting time? - ans -No
What is the major objective in crown cleaning? - ans -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. - ans -Broadcasting, drill
hole, injection, foliar application, and implants
Are wound dressings or paint recommended after making pruning cuts? Why? -
ans -No, studies show it does no good.
What is the purpose of crown restoration? - ans -Improves structure and
appearance of improperly pruned or storm-damaged trees by encouraging new
growth.
List 3 ways cavities are started in trees. - ans -Insects, lightning, and wounds.