What Is a Glue Trap?
A glue trap is a type of mousetrap that operates on the principle of laying out a sticky space where a mouse would run over, but get stuck, keeping the mouse on the trap so that it can be removed from the area. Glue traps come in many varieties and strengths, but are always made with a non-hardening sticky glue that may be attached to a cardboard or plastic strip or tray. This tray is left in an area where a mouse may find it.
Sticky glue traps may catch mice who happen to run over them merely by chance, but they are generally baited to attract rodents, either with real food or a food scented extract provided with the trap.
Removal and Controversy
Mice can be removed from glue traps by pouring vegetable oil on the area where the mouse is stuck. If the mouse is not injured, it can then be released into the wild.
Many mice experience injury in the struggle to free themselves from the glue. This, combined with the possibility of the rodent's death due to starvation, dehydration, exposure or predators, if it's not found, has sparked controversy and glue traps are considered inhumane by animal rights advocacy groups.