ISA Certified Arborist Practice Exam

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Prepare for the ISA Certified Arborist Exam with detailed flashcards and multiple-choice questions, each offering hints and explanations. Ace your certification test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What does the term "topping" refer to in arboriculture?

Cutting off the crown of a tree
Applying fertilizer to the roots
Pruning branches to shape the canopy
Inserting liquid fertilizer into the soil

The correct answer is: Cutting off the crown of a tree

In arboriculture, the term "topping" refers to cutting off the crown of a tree. This is considered a harmful and damaging practice as it removes a significant portion of the tree's canopy and can lead to long-term health issues. Option B, applying fertilizer to the roots, is not related to the term "topping." Option C, pruning branches to shape the canopy, is a common and beneficial practice in arboriculture, but it is not the same as topping. And option D, inserting liquid fertilizer into the soil, is not related to the term "topping" in any way. Therefore, the best answer is A, cutting off the crown of a tree.