CPA CPA - Certified Pesticide Applicator Integrated Pest Management (IPM) Strategies Questions and Answers 1 — Questions and Answers
Question 1: What is the primary goal of Integrated Pest Management (IPM)?
- Eliminate all pests using maximum pesticide applications
- Manage pests using a combination of strategies to minimize economic, health, and environmental risks (Correct answer)
- Apply pesticides on a fixed calendar schedule
- Use only biological controls regardless of cost
Correct answer: Manage pests using a combination of strategies to minimize economic, health, and environmental risks
IPM aims to manage pests using multiple strategies—biological, cultural, physical, and chemical—while minimizing risks to people and the environment.
Question 2: Which of the following is an example of a cultural control method in IPM?
- Applying a systemic insecticide
- Releasing beneficial insects
- Rotating crops to disrupt pest life cycles (Correct answer)
- Using pheromone traps to capture pests
Correct answer: Rotating crops to disrupt pest life cycles
Crop rotation is a cultural control that disrupts pest habitat and life cycles by changing the host plant available each season.
Question 3: In IPM, an action threshold is defined as:
- The point at which a pest is first detected
- The pest population level at which control action must be taken to prevent economic damage (Correct answer)
- The maximum pesticide dose allowed by law
- The level at which a pest becomes resistant to pesticides
Correct answer: The pest population level at which control action must be taken to prevent economic damage
An action threshold is the pest density at which the cost of damage equals the cost of control, triggering intervention.
Question 4: Which IPM tactic involves introducing natural enemies to control pest populations?
- Mechanical control
- Chemical control
- Biological control (Correct answer)
- Cultural control
Correct answer: Biological control
Biological control uses natural enemies such as predators, parasitoids, and pathogens to suppress pest populations.
Question 5: What is the correct order of IPM decision-making steps?
- Apply pesticide → monitor → identify pest → set threshold
- Identify pest → set threshold → monitor → apply control if threshold is reached (Correct answer)
- Monitor → apply pesticide → identify pest → evaluate results
- Set threshold → apply pesticide → monitor → identify pest
Correct answer: Identify pest → set threshold → monitor → apply control if threshold is reached
IPM follows the sequence: correct pest identification, establishing action thresholds, ongoing monitoring, then applying the least-risk control when thresholds are exceeded.
Question 6: Which of the following best describes the 'economic injury level' (EIL) in IPM?
- The pest population that causes visible but tolerable damage
- The lowest pest population that will cause economic damage equal to the cost of control (Correct answer)
- The legal limit for pesticide residues on crops
- The number of pests per acre allowed before harvest
Correct answer: The lowest pest population that will cause economic damage equal to the cost of control
The EIL is the pest density at which the damage caused equals the cost of applying a control measure, making treatment economically justified.
CPA CPA - Certified Pesticide Applicator Integrated Pest Management (IPM) Strategies Questions and Answers 1
What is the primary goal of Integrated Pest Management (IPM)?