Yes, you should block up rat holes, but only after confirming the rats are gone, otherwise, you risk trapping them inside, causing a terrible odor and potentially forcing them to chew through walls to get out into your house. Seal active holes with tough materials like steel wool, hardware mesh, or cement to prevent future entry and deter new rodents from taking up residence.
It is important to seal the holes even after the rats are gone, so other animals do not attempt to utilize the burrow. When there are no animals in the nest, fill it with concrete or sand. If possible, locate the main entry hole and all of the exit holes and pack them full.
Close and Fill
Inactive burrows: Fill the hole with dirt, then stomp or tamp it down with a shovel to compact the soil. Check back in a few days to see if rats have re-excavated the burrow, which would indicate it is still active. Active burrows: Stuff the entrances with steel wool to prevent the rats from re-entering.
Seal any holes you find to stop rodents from entering. Fill small holes with steel wool. Put caulk around the steel wool to keep it in place or use spray foam. Use lath screen or metal, cement, hardware cloth, or metal sheeting to fix larger holes.
Rats are known for being fiercely territorial animals. When their nest is disturbed, they feel threatened and may abandon it altogether. This can result in them leaving behind their offspring, helpless and in dire need of their mother's care.
Try to avoid using caulk or plastic or paper to block rat holes; the rats will easily chew through these types of barriers. You can use wire mesh or even chicken wire to block the holes and this will prevent the rats from re-entering the hole.
The Brown rat has 5 to 15 rodents per nest. There have been as many as 100 in a single nest in some cases. Indoor nests are usually restricted to between 5 and 10 rats; however, you may find a colony with multiple nests made up of mature and young rats. Each female rat can produce up to 40 babies per year.
This is because rats and mice are nocturnal animals and tend to come out around 12am – 3am looking for food. If you do see rats or mice in the daytime then you have a much larger problem.
Look for signs of rat or mouse infestation: Rodent droppings around food packages, in drawers or cupboards, and under the sink. Nesting material such as shredded paper, fabric, or dried plant matter. Signs of chewing on food packaging.
Position the hosepipe or watering can at the entrance, then turn on the water to let it run into the burrow. The water's force should be sufficient to displace the rats from their nest. After the rats have been flushed out, you'll need to seal the hole to prevent their return.
It's possible to repel rats using essential oils such as peppermint oil and other smells that they naturally don't like. Using peppermint oil is one of the easiest ways to keep rats away from your home as long as you aren't giving them an easy food source.
Rats exhibit preference for dark areas but can thrive in lighted environments if shelter is available. Maintaining cleanliness and eliminating food sources is more effective for preventing rat presence than relying on lighting. Loud noises may deter rats, but light alone is not a reliable method to keep them away.
Rats are capable of remembering places where they found food or shelter, and scent trails help guide them back. That's why rodent problems often repeat when entry points, food sources, or odors remain unchanged.
Setting Traps In Outdoor Spaces
Amish communities get rid of mice using a mix of traditional, low-tech, and natural methods, focusing heavily on prevention (sealing entry points, removing food sources) and humane trapping, often with handmade cage traps, while also using strong scents like peppermint oil or cayenne pepper as repellents, sometimes alongside cats for natural pest control. They avoid modern poisons to maintain their lifestyle and focus on practical, sustainable solutions.
Wild rats are not used to human contact and will bite when handled or when people attempt to feed them by hand. The nocturnal creatures have also been known to bite sleeping people, particularly children and infants, on exposed body parts such as fingers, hands, toes and the face when foraging for food.
Unfortunately, the answer is yes. Rats are agile climbers, capable of scaling brick walls, wooden fences, trellises, drainpipes, trees, and climbing plants. This climbing ability is one of the reasons it's so important to physically block entry points, which we'll cover in more detail in the next section.
If you're sealing holes or gaps in your home, use a gnaw-proof filler. Normal filler, expanding foam or wire wool won't keep rodents out.
Four Things Rats Cannot Chew Through
Any materials with greater strength than their incisors are too difficult for them to chew on or through. Examples of hard materials include: Steel, like sinks, ovens, refrigerators, steel beams, steel wiring in ductwork, and fencing. Iron to reinforce concrete and other structures.
Chocolate. Never give chocolate to your pet. It contains a powerful stimulant called theobromine (similar to caffeine), which is poisonous to rodents. Dark chocolate and cocoa contain high levels of theobromine.
Rodents are prolific breeders and the species identified in this guide can produce anywhere from 15-128 young a year; brown rats and house mice in particular will breed throughout the year, whilst yellow-necked and wood mice generally breed between March and October (longer if they have a good food supply).
A great way to test if rats are still making their way through your home is to spread some flour or talcum powder overnight on surfaces and floors you suspect they visit. If you do still have rats, they will leave a trail of footprints which can also help you to determine where they're hiding.
A grieving rat may eat less, appear depressed, or become restless. Lack of appetite, depression or lethargy may be symptoms of a secondary bacterial infection triggered by the stress of the loss, so rats with these signs should be treated with an antibiotic just in case.