Pest monitoring helps determine if control is needed and which method is most effective.

• A. Monitor levels only
• B. Determine if control is needed and which method is most effective
• C. Eradicate all pests
• D. Never monitor

Answer: (B)

Pest monitoring guides action and helps choose the most effective control method. By regularly checking pest numbers and damage and comparing them to established action thresholds, you know when intervention is actually needed rather than treating on a guess. Once you decide to act, monitoring also helps you assess how well different control methods work in real conditions—timing, application method, and environmental factors all influence effectiveness. If the pest levels don’t drop as expected, monitoring signals you to adjust tactics or try a different approach, aiming for efficient control with minimal cost and environmental impact.

Monitoring only the levels without using the data to decide on treatment or evaluate methods isn’t sufficient. Eradicating all pests is not a realistic goal in most situations, and never monitoring eliminates the essential feedback loop that IPM relies on.