Louisiana Arborist Exam 2024 Questions with Correct Answers 100% Verified Discuss the differences between "flush cuts" and proper cuts made to outer portions of branch collar.How do "flush cuts" affect growth? - Correct 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. - Correct 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). - Correct 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? - Correct 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? - Correct Answer No What is the major objective in crown cleaning? - Correct 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. - Correct Answer Broadcasting, drill hole, injection, foliar application, and implants Are wound dressings or paint recommended after making pruning cuts? Why? - Correct Answer No, studies show it does no good.What is the purpose of crown restoration? - Correct Answer Improves structure and appearance of improperly pruned or storm-damaged trees by encouraging new growth.List 3 ways cavities are started in trees. - Correct Answer Insects, lightning, and wounds. 1 / 3
What is the definition of a tree? - Correct 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. - Correct 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? - Correct 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. - Correct Answer Safety glasses, earplugs, face shield, hard hat, leg protection, and boots.List the major parts of a tree and their function. - Correct 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? - Correct Answer The 1st year to focus on root establishment.What are the benefits of mulching a young tree? - Correct Answer To conserve moisture, reduce competition from weeds and grass, improve soil structure, and aesthetic value.List 3 benefits of mulch. - Correct Answer 1) Retains moisture.2) Reduces weeds.3) Insulates roots. 2 / 3
Why is the use of spurs prohibited on living trees? - Correct Answer It causes wounds and damages the tree.What is chlorosis in a tree and how is it treated? - Correct Answer The yellowing of leaves can be treated with Manganese.Why is it recommended to use a block when lowering a heavy limb? - Correct Answer To carry the load and reduce injury to a crotch from a climber's line.Describe how to cut down a large limb. - Correct 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? - Correct Answer To secure a climber to the tree for use of 2-hands, to swing, and for rescue.Distinguish between narrow and wide crotch angles. Could either harm the tree? - Correct Answer Crotch angles are where branches fork, or where a main limb joins the trunk.Narrow Crotch angles (Tight) are where the angle between two branches is too narrow (less than 45 degrees). they can lead to structure weaknesses and tree failure Wide Crotch angles (Strong) are where the angle between the two branches 45 degrees or more.Describe Xylem and Phloem, and their function. - Correct Answer Plants have tissues to transport water, nutrients and minerals.Xylem transports water and mineral salts from the roots up to other parts of the plant.Phloem transports sucrose and amino acids from the leaves and other parts of the plant.Is a contract required between an LA licensed arborist before tree work is performed? - Correct Answer Yes
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