What should you do if there is a mouse or rat in an apartment? - briefly
Identify and seal all entry gaps, position snap traps or live‑catch devices along walls and near food sources, and contact a professional pest‑control service if activity persists.
What should you do if there is a mouse or rat in an apartment? - in detail
If a rodent appears in a dwelling, immediate containment is essential. Remove all food sources by storing perishables in sealed containers, cleaning crumbs, and disposing of uncovered waste. Block obvious entry points with steel wool, caulk, or metal mesh; focus on gaps around pipes, vents, and baseboards.
Inspect the interior to locate activity signs such as droppings, gnaw marks, or nesting material. Use a flashlight to examine hidden areas like behind appliances, under sinks, and within closets. Document findings to guide subsequent actions.
Select an appropriate control method. For mice, snap traps or electronic traps placed perpendicular to walls, with the trigger end facing the wall, yield high capture rates. For rats, larger snap traps or multi‑catch cages are recommended. Bait with a small amount of peanut butter, chocolate, or dried fruit; avoid excessive bait that may reduce trap sensitivity. Position traps along established runways, typically within 1‑2 feet of walls, and check them daily.
If traps prove ineffective after several days, or if the infestation appears extensive, contact a licensed pest‑control professional. Professionals can apply baits, rodenticides, or exclusion techniques while complying with safety regulations.
Prevent re‑infestation through ongoing maintenance. Seal cracks larger than ¼ inch, maintain a tidy environment, and regularly inspect for new entry points. Schedule periodic checks of trap locations and replace worn devices promptly.