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

The study of birds and mammals in forest ecosystems

Answer

The chemical treatment of forest soils for pest control

Answer

The genetic improvement of trees for insect resistance

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

Emerald ash borer (Agrilus planipennis)

Answer

Hemlock woolly adelgid (Adelges tsugae)

Answer

Gypsy moth (Lymantria dispar)

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

It defoliates ash trees, reducing photosynthesis

Answer

It attacks ash root systems causing windthrow

Answer

It causes a lethal fungal disease in ash wood

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

Insects removing bark and exposing wood

Answer

Insects boring into wood and weakening the stem

Answer

Insects spreading fungal spores through galleries

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

Using only chemical pesticides to control all forest insects

Answer

Importing predatory insects from other countries to eliminate pests

Answer

Quarantining infested forests until pest populations decline naturally

Question 6

What is 'forest pathology' concerned with?

Accepted Answer

The study of diseases affecting forest trees, including causes, development, and management

Answer

The study of forest soils and nutrient cycling

Answer

The analysis of growth rings to reconstruct climate history

Answer

The legal aspects of forest pesticide application