Use bed bug monitors or traps to see if you can catch them. We recommend using interceptors, which are small, inexpensive devices that you place under the legs of your bed that capture bed bugs when they’re climbing up or down.
Get a canine bed bug inspection if you suspect you might have brought bed bugs home, or if you find out there were bed bugs at the place you stayed at. Bed bug sniffing dogs have a high degree of accuracy, and are able to detect bed bug infestations very early on.
Nobody knows exactly how many rats are living in New York City, but in 2014 statisticians estimated their population to be around 2 million.
Since then, rat sightings and complaints to 311 have nearly doubled from 1,397 monthly complaints in July 2014 to 2,676 complaints in July 2021.
Seeing rats in your own neighborhood? Read our article to learn how to get rid of rats outside and what you (and your neighbors) can do to protect your block from an infestation.
Outdoor rats can be a big problem for residents, landlords, and local businesses in New York City’s brownstone neighborhoods.
The most common type of outdoor rat in NYC is the Norway Rat (Rattus norvegicus), which is also known colloquially as the Brown Rat, Street Rat, or Sewer Rat.
Adult rats can reach 20 inches long from head to tail and weigh up to 11 ounces. Yet despite their size, they’re able to squeeze their way through openings as small as 1/2 inch across.
These pests are known for chewing through garbage, stealing food, spreading disease, leaving droppings everywhere, damaging property (including parked cars), and even decreasing property values.
Norway rats prefer to live close to the ground, digging holes and burrows near bushes and other vegetation.
Rat burrows usually have multiple entry points and contain around 3 feet of underground tunnels that can sometimes extend under concrete and buildings.
New York City rats can establish burrows anywhere that has soft dirt at ground level or below, especially around bushes and vegetation. Common sites where rats burrow include:
Aside from burrowing, rats can also set up nests anywhere that can shelter them from predators and weather conditions.
Outdoor clutter, alleyways, and overgrown shrubbery are top choices for NYC rodents, and if they can find a way inside of your building, there are even more choices available for them.
Rats are hard to spot due to their careful nature. They don’t like to run around in broad daylight, so you typically won’t see them running around your block unless the infestation has become severe.
But if you pay attention, you can find telltale signs of rats living on your property or in your neighborhood. When the NYC Health Department sends inspectors to monitor rat activity, here are the common signs that they look out for:
The approach to successful outdoor rat control is different than tackling an indoor rodent problem. For one, outdoor areas are boundless; even if you manage to remove the rats around your building, more will come from neighboring blocks to take over the territory.
Effective rat control isn’t achieved by a single resident or landlord—it’s a team effort that requires the cooperation of everyone in your building and on your block to drive rats away for good.
Here are some simple prevention tips for tenants and landlords to protect your neighborhood from New York City rats:
Bed Bugs ControlRat burrows are small holes in the ground where rats live and reproduce. Each burrow typically has one main entrance that’s around 2–4 inches wide, as well as side entrances and escape holes.
In the context of New York City neighborhoods, access to food and water most commonly comes in the form of garbage left on sidewalks and alleyways, although gardens, yards, and outdoor dining setups are also attractive spots for rats to set up their burrows.
If you find a rat burrow, close it by filling it with soil and tamping down with a shovel.
Pest control professionals may fill active burrows with things to kill the rats inside, such as natural rodenticides or dry ice, before closing them.
Dry ice in particular is very effective for outdoor rat control. When placed into rat burrows, dry ice sublimates into carbon dioxide which fills the burrow and suffocates any rats inside. New York City officials started using this method in 2018 to exterminate large numbers of rats infesting public parks.
Another product used by MMPC and other pest control professionals for eliminating rats and their burrows is BurrowRX. This machine pumps carbon monoxide through their tunnels and nesting areas, which humanely kills any rats inside within minutes.
The carbon monoxide smoke is colored so that the licensed applicator can see if the gas leaks through any other holes that might be connected to the burrow. If so, those holes are also be blocked and closed.
The carbon monoxide smoke is colored so that the licensed applicator can see if the gas leaks through any other holes that might be connected to the burrow. If so, those holes are also be blocked and closed.
Exclusion, one of the cornerstones of an Integrated Pest Management (IPM) approach, involves installing physical barriers to shut the rats out.
To prevent rats from being able to get inside buildings, city officials recommend sealing all holes and cracks in foundations, walls, floors, underneath doors, and around windows. Some examples of materials used for sealing include:
Patches of empty dirt in gardens, planters, and tree beds should be fitted with a top layer of steel mesh or a screen to stop rats from burrowing beneath the soil.
Using a caulking gun, seal cracks and small holes with caulk or cement. Any gap that’s larger than half an inch is big enough for a rat to crawl through. For larger gaps and holes, fill them with cement or expansion foam before covering with steel mesh and seal with cement.
Doors with gaps should be fitted with metal door sweeps to prevent rats from squeezing through underneath. If you see gnaw marks, install sheet metal plates on the bottom of the door.
Lastly, seal any pipes leading into walls with pipe collars and cover any drains or vents with metal screens.
This method uses rodenticide bait (in the form of blocks or pastes) placed inside of tamper-proof boxes. The boxes, called bait stations, are designed to allow rodents to get in and eat the poisoned bait, while keeping it safely out of reach from pets and children.
At MMPC, our exterior rat baiting program uses anticoagulant bait blocks that are formulated to effectively attract and exterminate rats and other rodents.
Rather than killing the target immediately, rodenticides used for exterior rat baiting are designed to be slow-acting—rats usually die after 4 to 6 days of taking the poisoned bait. There are two reasons for this: