What must be monitored for pest control effectiveness?

• A. Chemical residue levels
• B. Physical control methods like PVC strips, insectocutors, air curtains, and rat traps
• C. Number of employees entering the area
• D. Waste disposal frequency

Answer: (B)

The main idea is to verify how well the physical barriers and control devices are working to prevent pests and reduce their activity. Monitoring these physical methods—PVC strips, air curtains, insectocutors, and rat traps—tells you whether pests are being kept out or captured, and whether any devices are failing or need maintenance. You’d routinely check that strips are intact with no gaps, air curtains are operating at the correct settings, traps are properly placed and emptied, and insectocutors have functional bulbs and power. Tracking pest signs and trap counts over time shows if the control measures are effective (a downward trend means success). Chemical residue levels measure safety and product use, not the effectiveness of pest control, and the number of people or waste disposal frequency aren’t direct measures of pest-control performance.