B.F. Bachelor of Forestry Forest Entomology and Pathology 1

Question 1

What is 'forest entomology' concerned with?

Accepted Answer

The study of insects and their relationships with forest trees and ecosystems

Answer

Forest entomology is the branch of forestry that studies insects affecting forest trees, including identification, ecology, damage assessment, and management.

Question 2

Which bark beetle species is most notorious for causing widespread pine mortality in the western United States?

Accepted Answer

Mountain pine beetle (Dendroctonus ponderosae)

Answer

The mountain pine beetle has killed billions of pine trees across the western US and Canada, particularly during the 2000s epidemic driven by drought and warming temperatures.

Question 3

What is the primary damage caused by the emerald ash borer (EAB) in the United States?

Accepted Answer

It girdles ash trees by destroying the phloem and cambium beneath the bark, killing the tree

Answer

EAB larvae feed on phloem and cambium tissue beneath the bark, girdling the tree and disrupting water and nutrient transport, eventually killing it.

Question 4

What is 'defoliation' by insects and what is its effect on trees?

Accepted Answer

Insects consuming foliage, reducing the tree's ability to photosynthesize and potentially causing mortality

Answer

Defoliation is the removal of leaves by insects, reducing photosynthetic capacity, weakening the tree, and potentially causing mortality after repeated severe events.

Question 5

What is 'integrated pest management' (IPM) in forest entomology?

Accepted Answer

A strategy combining biological, cultural, mechanical, and chemical methods to manage pest populations economically and sustainably

Answer

IPM is a decision-based approach that integrates multiple pest control tactics to manage pests below economically or ecologically damaging levels while minimizing environmental impact.

B.F. Bachelor of Forestry Practice Test

B.F. Bachelor of Forestry Practice Test

B.F. Bachelor of Forestry Forest Entomology and Pathology 1