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Pesticide Applicators License - Core Guide ( Update 2025 / 2026) Questions and Answers
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.
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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.
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