Pheromone traps installed in a warehouse should be described as: 1) always keep a trap near each entrance 2) never be moved. Which option is correct?

• A. 1 is true, 2 is false
• B. 1 is false, 2 is true
• C. both are true
• D. both are false

Answer: (A)

Pheromone traps in a warehouse are used mainly to monitor pest activity and catch insects as they enter or move through the space. Placing a trap near each entrance helps detect pests right where they try to come in, providing early warning and useful data for guiding controls. However, traps aren’t fixed forever; they should be evaluated and moved as needed to improve coverage, respond to changing pest pressure, and account for lure potency over time. So the best description is that a trap near entrances is a good, sensible placement, but traps can and should be moved as conditions change.