FREE Certified Arborist Pruning Questions and Answers

Question 1

Out of the following, which is NOT an adverse consequence of lion tailing?

Accepted Answer

Barberchair

Answer

Lion tailing is an improper pruning technique that removes inner lateral branches, leaving only foliage at the branch tips. This practice leads to weak branches, sunburned bark due to sudden exposure, and the proliferation of water sprouts. 'Barberchair' is a type of wood failure that occurs during felling or heavy branch removal, where the trunk or branch splits vertically, and is not a direct consequence of lion tailing.

Question 2

Which of these methods of pruning involves the arborist cutting the branch back to a point where it is relatively weak?

Accepted Answer

Heading cut

Answer

A heading cut involves cutting a branch back to a stub or a lateral branch that is too small to assume apical dominance, often removing a significant portion of the branch. This technique typically stimulates vigorous, often weakly attached, regrowth (water sprouts) and can lead to structural weakness. It is generally considered an improper pruning method in arboriculture, unlike thinning or reduction cuts.

Question 3

When pruning, how much of the leaf-bearing crown should be removed at the most?

Accepted Answer

No more than 25%

Answer

As a general guideline in arboriculture, no more than 25% of a tree's leaf-bearing crown should be removed in a single pruning event. Removing excessive foliage at once can severely stress the tree, reduce its ability to photosynthesize, and make it more susceptible to pests, diseases, and environmental stressors. This limit helps maintain the tree's health and vigor.

Question 4

_______ is a cut used in topping.

Accepted Answer

Heading cut

Answer

Topping is a severe and improper pruning practice that involves cutting back large branches to stubs, often between nodes, without regard for branch collar or natural growth points. This practice primarily utilizes heading cuts, which stimulate weak, rapid regrowth and can severely damage the tree's structure, health, and aesthetic appeal.

Question 5

When is it appropriate to prune plants that bloom on the wood from the previous season?

Accepted Answer

Soon after they bloom

Answer

Plants that bloom on 'old wood' (wood from the previous season's growth) should be pruned immediately after they finish flowering. This timing allows the plant to set new flower buds for the following year on the current season's growth. Pruning too late in the season or during winter would remove these developing flower buds, resulting in reduced or no blooms the subsequent season.

Certified Arborist Test Practice Test

Certified Arborist Test Practice Test

FREE Certified Arborist Pruning Questions and Answers