The key difference in baiting mice when compared to rats is

• A. More bait placements
• B. A different bait type
• C. A longer exposure period
• D. Bait should be placed near water

Answer: (A)

Mice need more bait placements than rats because they use many small, dispersed routes and prefer to nest in a variety of tiny spaces within a building. This means a single bait station is unlikely to be encountered by every mouse or to cover all the potential runways they use. By placing stations more densely, you increase the chances that a mouse will come across bait wherever it is in the structure, leading to quicker exposure and uptake across the population. Rats, with larger home ranges and fewer frequent channels of movement, can be effectively managed with stations spread farther apart, so the difference lies in the need for higher bait density when targeting mice.

Other factors like bait type, exposure period, or proximity to water aren’t the defining distinction between the two species; the critical difference here is how frequently and widely mice move and forage, which necessitates more bait placements to achieve control.