Guide (Latest Update )
Questions and Answers | Grade A |
100% Correct
Question:
Economic threshold
Answer:
The population density of a pest at which control measures should be
initiated to prevent an increasing pest population from reaching the
economic injury level.
Question:
Economic Injury Level
Answer:
The population density of a pest causes a reduction in the value of the crop
that equals the cost of the control.
, Question:
Aesthetic Threshold
Answer:
Damage level that is unacceptable to the viewer.
Question:
Action Threshold
Answer:
The pest level at which some type of pest management action should be
taken.
Question:
Natural enemies
Answer:
The predators, pathogens, and parasites that attack pest species.
Question:
Biological control
Answer:
Control by predators, pathogens, and parasites that are either naturally
occurring or introduced.