Louisiana Arborist Exam questions and verified correct answers 2024

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.