Which feature characterizes expanded-trigger traps used for rats in schools?

Which feature characterizes expanded-trigger traps used for rats in schools?

• A. They require immediate baiting and setting.
• B. They are prebaited and left unset for several days.
• C. They are baited and set immediately after placement.
• D. They are designed to minimize non-target captures.

Answer: (B)

Expanded-trigger traps used for rats in schools rely on a prebaiting approach: bait is placed in the trap but the mechanism is not set for several days. This waiting period lets rats discover the bait and become comfortable with the trap itself without triggering it right away. When the trap is finally activated, rats that have already sampled the bait are more likely to approach confidently and trigger the device, increasing the chances of capture. In a school setting, this method also reduces immediate disruption and safety concerns because the trap sits quietly during the prebait period and is only activated once the rat population has started to accept the trap. While reducing non-target captures is important in pest control, the defining practice here is prebaiting and leaving the trap unset for a period before setting it.

Expanded-trigger traps used for rats in schools rely on a prebaiting approach: bait is placed in the trap but the mechanism is not set for several days. This waiting period lets rats discover the bait and become comfortable with the trap itself without triggering it right away. When the trap is finally activated, rats that have already sampled the bait are more likely to approach confidently and trigger the device, increasing the chances of capture. In a school setting, this method also reduces immediate disruption and safety concerns because the trap sits quietly during the prebait period and is only activated once the rat population has started to accept the trap. While reducing non-target captures is important in pest control, the defining practice here is prebaiting and leaving the trap unset for a period before setting it.