FREE Pruning & Maintenance Questions and Answers

Question 1

What is the primary purpose of pruning young trees?

Accepted Answer

Establish proper structure

Answer

The primary purpose of pruning young trees, often called structural pruning, is to establish a strong, well-formed framework that will support the tree throughout its life. This involves removing weak branches, correcting poor branch angles, and establishing a dominant central leader, which helps prevent future structural defects and reduces the risk of limb failure.

Question 2

What is the correct pruning cut when removing a branch?

Accepted Answer

Just outside the branch collar

Answer

When removing a branch, the correct pruning cut is made just outside the branch collar, which is the swollen area of tissue at the base of the branch where it attaches to the trunk or a larger limb. This allows the tree to form a proper callus and compartmentalize the wound effectively, promoting faster healing and minimizing the entry point for pests and diseases. Cutting flush with the trunk removes the collar and inhibits proper wound closure.

Question 3

Which type of pruning removes large limbs for risk reduction?

Accepted Answer

Reduction

Answer

Reduction pruning involves selectively shortening branches to reduce the overall size or spread of the tree's crown, often to mitigate risks associated with large, overhanging limbs or to clear obstacles. Unlike detrimental topping, reduction pruning maintains the tree's natural form and structure by cutting back to a lateral branch that is at least one-third the diameter of the removed portion.

Question 4

When is the best time to prune most deciduous trees?

Accepted Answer

Late winter

Answer

The best time to prune most deciduous trees is in late winter, when they are dormant and before new growth begins. The absence of leaves allows for clear visibility of the tree's structure, and the tree is less susceptible to stress and disease transmission during dormancy. Pruning at this time also minimizes sap bleeding and allows the tree to quickly compartmentalize wounds as spring growth commences.

Question 5

What is the term for removing lower branches to clear space?

Accepted Answer

Crown raising

Answer

Crown raising, also known as lifting, involves removing lower branches from a tree's crown to provide clearance for pedestrians, vehicles, or structures. This practice helps improve visibility and access beneath the tree while maintaining its overall health and structure. It is distinct from other pruning methods like topping, crown cleaning, or thinning, which serve different objectives.

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Certified Arborist Test Practice Test

FREE Pruning & Maintenance Questions and Answers