Forest Insects and Diseases Quiz

What is an example of an alien forest insect?

• Spruce budworm

• Emerald ash borer

• Mountain pine beetle

• Brown spruce longhorn beetle

What does the term "invasive" refer to in the context of forest insects?

• Insects that stay within their known range

• Insects that spread beyond their known range

• Insects that are beneficial to the ecosystem

• Insects that are native to the area

What is a key stage in the life cycle of the mountain pine beetle?

• Larvae feeding on leaves

• Beetle transmitting a blue stain fungus

• Adults migrating to new areas

• Eggs hatching in spring

How long after an attack do early symptoms in the lower crown become visible?

• 1-2 weeks

• 2-3 months

• 4-5 months

• 6-7 months

What insect typically vacates trees after they display symptoms of infestation?

• Mountain pine beetle

• Bark beetle

• Leaf miner

• Aphid

What is the impact of a single year of defoliation on a tree?

• Significant tree death

• Little impact

• Increased growth

• Immediate recovery

Where is the forest tent caterpillar primarily distributed?

• Europe

• Canada

• Asia

• Australia

How long do infestations of forest tent caterpillars generally last?

• One year

• Two years

• Three years

• Four years

What is a significant factor contributing to the spread of the emerald ash borer?

• Movement of firewood

• Air pollution

• Water contamination

• Soil erosion

How many eggs does a female Asian longhorned beetle lay on average during her lifetime?

• 25-40 eggs

• 10-15 eggs

• 50-60 eggs

• 70-80 eggs