ISA Certified Arborist Practice Exam

Question: 1 / 400

What is a major consequence of stress due to excessive pruning?

Increased photosynthesis

Increased vulnerability to pests and diseases

Excessive pruning can lead to increased vulnerability to pests and diseases in trees. When a tree is pruned heavily, it can become stressed, which can weaken its overall health and resilience. This stress may impair the tree's ability to produce essential defensive compounds that help it fend off insects and pathogens. Additionally, the removal of a large number of leaves reduces the tree's capacity for photosynthesis, further impacting its health.

In contrast, while excessive pruning may reduce leaf density, it ultimately compromises the tree's vitality and can lead to structural issues rather than strengthening branch structure. Increased photosynthesis typically requires adequate leaf mass, which excessive pruning diminishes, therefore not promoting the tree’s health in such cases. Thus, vulnerability to pests and diseases becomes a significant concern following excessive pruning activities.

Get further explanation with Examzify DeepDiveBeta

Strengthened structure of branches

Reduced leaf density

Next Question

Report this question

Download ISA Certified Arborist Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy