Rat and mouse article

Rat and Mouse Traps: What Works in a Miami Home

Updated November 4, 2026

Snap traps placed along runways do most of the work. Here's how they compare with electronic, live and glue traps, how to place them for roof rats and mice, and how to bait them.

For most Miami homes, plain snap traps work best: rat-size for roof rats, mouse-size for mice, several of them, placed along the routes rodents travel. Electronic traps are a cleaner option indoors. Live traps leave you with a live rodent. Glue boards catch the wrong things. Bait stations are for poison, which belongs outdoors in a locked station, if at all.

Placement matters more than brand. Here's how the options compare and how to set them so they catch.

Snap traps

Snap traps are cheap, fast and reliable. Get the right size: rat traps for roof rats, mouse traps for mice. A mouse trap won't hold a rat, and a rat trap is often too stiff for a mouse to trigger. Use several at once. Wear gloves when setting and checking them, and keep them out of reach of kids and pets, inside a box with an opening or behind appliances.

Electronic traps

Battery-powered traps kill with a shock inside a closed box. They're tidy and keep the rodent out of sight, which some people prefer in a kitchen or a condo. They cost more and need fresh batteries. They work well for mice and smaller rats, placed the same way as snap traps.

Live traps

Cage traps catch rodents alive, but then you have a live rat or mouse to deal with. Releasing it nearby just puts it back in the neighborhood, and handling it risks a bite. Most providers don't use them for rats and mice.

Glue boards

Glue boards catch rodents but leave them alive and struggling, and they also catch lizards, birds and pets' paws. They're common in commercial monitoring, but for most homes, snap traps are the better choice.

Bait stations and poison

Bait stations hold poison, not traps. EPA rules require consumer rodenticides to come in bait stations, and second-generation anticoagulants can't be sold to general consumers. UF/IFAS says outdoor bait must go in a tamper-resistant station, and UF/IFAS ENY-224 says stations should be inaccessible to a 4-year-old child or a dog. Indoors, poisoned rodents can die inside walls, which in Miami heat means weeks of smell. See the rodenticide rules.

Where to put traps for roof rats

Roof rats travel high. Put traps:

• Along top plates and rafters in the attic, where droppings are heaviest
• On ledges and beams where you see rub marks
• Near the gap where they get into the attic
• In the garage along the top of walls or open joists
• Outdoors only from dusk to dawn, per UF/IFAS, so daytime birds and squirrels aren't caught

Where to put traps for mice

Mice stay low and close to food:

• Along walls with the trigger end touching the wall
• Under sinks, behind the stove, fridge and dishwasher
• Inside lower cabinets and the pantry
• Along garage walls behind stored items
• A few feet apart where droppings are heaviest

Bait and timing

UF/IFAS ENY-224 suggests raisins or grapes for roof rats and sardines in oil for Norway rats. Peanut butter works for both rats and mice; use a small amount pressed onto the trigger. Rats are cautious and may take a week to approach a new trap, so ENY-224 suggests leaving traps baited but unset for several days first. Mice usually approach a trap the first night, so move a mouse trap if it hasn't caught anything in a few nights.

Traps don't finish the job

Traps deal with the rodents inside now. Unless the openings get sealed and the food goes away, new ones replace them. After the catches stop, seal with metal and trim trees back from the roof. See rodent exclusion and why rats come back.

Checking traps safely

Check traps every day. A rodent left in a trap in Miami heat starts to smell within a day or two. Wear gloves. Spray the rodent and the trap with disinfectant before you handle them, as the CDC advises for cleanup, then bag the rodent, seal the bag and put it in an outside trash can. Reset the trap in the same spot if you're still seeing fresh droppings, since rodents keep using the same runways.

Trapping in a condo or apartment

In a unit, set traps under the kitchen sink, behind the stove and dishwasher and inside the pantry, and keep them away from where kids and pets reach. Electronic traps work well here since the catch stays out of sight. If you keep catching mice for more than a week or two, they're coming through the building's chases, and management needs to know. See condo and apartment rodent control.

Related services: Rat Control, Mouse Control, Rodent Control