Entomology Flashcards
What is a parasitoid?
A parasite on a parasite
How do insects impact the economy?
- Mortality: Reduce growing trees
- Delay stocking levels: Delay reproduction of trees with seeds, cones and seedlings
- Reduce leaf volume
- Deterioration: Loss of product value
Benefit with pollination
What insect group refers to butterflies and moths?
O. Lepidoptera
What is special about the Green comma butterfly species?
The Green comma butterfly has a forest floor camo
What species of butterfly is endangered?
Monarch
Where do most butterfly species live?
Clearcuts and meadows
What are some of the moth species that are considered pests?
Spruce budworm, Light eastern tent moth
What insect group refers to beetles?
O. Coleoptera
What is the name for family of ground beetles?
Carabidae
What is the name for family of long horned beetles?
Cerambycidae
Name an invasive beetle species
Asian longhorned beetle (Anoplophora glabripennis) is invasive to spruce and fir in Nova Scotia.
What insect group refers to bees, wasps, ants and sawflies?
O. Hymenoptera
What insect group refers to aphids, adelgids, leafhoppers and true bugs?
O. Homoptera-hemiptera
What insect group refers to grasshoppers, katydids and walking sticks?
O. Orthoptera
What insect group refers to flies and mosquitos?
O. Diptera
What insect group refers to termites?
O. Isoptera
How do insects cause damage?
By eating and nest damage because insects are leaf miners
What species of insect is invasive in Fredericton/Oromocto?
Emerald Ash Borer
What are the three approaches to insect control?
- Natural control factors: Weather, natural predators
- Cultural Controls: Resistance, stand management, chemicals
- Mechanical Control: Physically cut stuff down and plant more resistant tree species (E.g. Longleaf pine resistant to bark beetles so we plant more of them)
What is a buffer zone when referring to invasive species in a forest?
Planting resistant tree species in between other trees to buffer out the transfer of invasive species.
What are the methods environmental managers use for invasive species control?
Detection, Identify, Forecast, Asses, Recommendations and Management. (DIFARM)
What is spruce budworm?
Native to NB, they come in cycles and go through larval stages.
What questions do we have to ask when looking at invasive species?
What keeps density low? why is it rising? how can we limit the population? what causes a collapse in population?
What are the two parts of the oscillatory hypothesis?
1) Survival and Reproduction: As budworm population decline, natural enemy population collapses allowing others to rise
2) Immigration: Does not contribute to overall growth
(SaRI)
