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Rats are more than just a nuisance—they can spread diseases and chew through wooden structures. When homeowners see a rat, they often panic, but with the right poison or repellent, it’s an easy problem to take care of and can save you the expense of hiring a rat exterminator.
To help you select the product that’s right for the pest control in your home, our team has researched the best rat poisons and rodent repellents on the market.
Below, we provide product recommendations, information about various types of rat poison and what to look for when buying, and answers to common buyer questions. Rat poison is very harmful or even fatal if ingested, and can be a hazard in homes with pets or small children, so be sure to create a safety plan and research the best options for your household’s needs.
Top 6 Rat Poisons
- Best Outdoor Rat Poison: Motomco All-Weather Bait Chunks
- Most Versatile Rat Poison: Tomcat Bait Chunx Pail
- Best Meal Bait Rat Poison: Motomco Bromethalin Meal Bait
- Best Rat Poison Pellets: Neogen Ramik Green Rodenticide
- Best Rodent Repellent: Natural Armor Peppermint Repellent
- Best Rodent Bars: Farnam Just One Bite II Mouse and Rat Bars
Compare Top Rat Poisons
Product | Form | Species Affected | Weight | Packaging |
---|---|---|---|---|
Motomco All-Weather Bait Chunks | Chunk | Rats and mice | 4 pounds | Bucket |
Tomcat Bait Chunx Pail | Chunk | Norway rats, roof rats, house mice, meadow voles, and more | 4 pounds | Bucket |
Motomco Meal Bait | Seeds | Norway rats, roof rats, and house mice | 5 pounds | Jug |
Neogen Ramik Green Rodenticide | Pellets | Rats, mice, and meadow voles | 20 pounds | Bag |
Natural Armor Peppermint Repellent | Spray | Rats and mice | 1 gallon | Jug with sprayer |
Farnam Just One Bite II Mouse and Rat Bars | Bar | Norway rats, roof rats, house mice, and warfarin-resistant Norway rats | 8 pounds | Wrapped bars |
Product | Form | Species Affected | Weight | Packaging |
Best Outdoor Rat Poison
What Are People Saying About the Motomco All-Weather Bait Chunks?
We noticed that many customers liked that these chunks were easy to use, worked both indoors and outdoors, and eliminated a large number of rats and mice. However, we also found that some customers were disappointed that the poison didn’t contain the powerful rodenticide bromadiolone. They thought that this might have contributed to the chunks taking days to kill rodents.
“After having our wood pile next to our house, we had a massive amount of rats and nothing worked to kill them. They ate through everything and made a mess of cupboards, dressers, and drawers. This product is the only thing that worked to kill them, we used half a container, compared to boxes of the other stuff sold out there and even using a company. Would recommend over and over.” — Heidi N Perez via Amazon
“…These pretty much have been ignored by the critters and when I do see one has been eaten a bit, I have yet to see a dead body in the yard or garage. But I do still see lots of the little guys running around. The population has not dropped at all.”— Dan via Amazon
Most Versatile Rat Poison
What Are People Saying About the Tomcat Bait Chunx Pail with Bromethalin?
When combing through reviews for this product, we found that many who left positive reviews liked that it was weatherproof, easy to put out, and attractive to rats and mice. However, customers who left negative reviews for this product didn’t like that it was dangerous to have around pets. Some we saw also said that it didn’t always kill the rats that ate it.
“This product works great! It’s easy and a great bargain for the price! … We simply put some of these in the attic and a few other places where our dogs couldn’t reach them. Problem solved, and no smell of dying wood rats. No fussing with traps, and you get your peace and quiet back in your home. 5-star product all the way!” — Ladydi8 via Amazon
“I can’t yet speak to how well this works, but I offer this note of caution. My dog was VERY interested in the pail the minute I unboxed it. When I opened the pail, I knew why: it smells like candy. Actually, it smells delicious. If you are not 100% certain you can secure this away from pets and small children, buy something else. When the lid is secured on the pail, it might be difficult for a small child to open, but a determined dog could chew through the pail.” — Becky Richardson via Amazon
Best Meal Bait Rat Poison
What Are People Saying About the Motomco Bromethalin Meal Bait?
Happy customers that we found said that the seeds were easy to spread and able to kill large infestations from rats and other pests. However, we saw some unhappy customers who claimed that mice and rats sometimes avoided eating the seeds. Others said that they arrived poorly packaged.
“…If you are throwing these in between the floors of your home or in crawl spaces where your pets cannot go, you can get rid of a huge infestation of roof rats in 24 hours. … For weeks and weeks I trapped and trapped to no avail. Twenty four hours after I threw these seeds into my crawl space attic and above the lower-level ceiling (by cutting an access panel), They were gone!” — John J Nunya via Amazon
“….Unfortunately, the rats hardly touched the poison. … The rats liked these balls but did not seem to have any detrimental effect on them. They were happily collecting them and taking them back to their den.” — Imi via Amazon
Best Rat Poison Pellets
What Are People Saying about the Neogen Ramik Green Rodenticide?
Of the satisfactory reviews, we found, several liked that it worked well on multiple types of rodents and was easy to disperse. However, we also noticed that those who were unsatisfied with the product said that it was less effective than traditional rat trap and others said the rats eventually learned to ignore it.
“I first used the big 4 lb bar. Took a whole bar and put on the shelf in the garage. Rat corpses on the floor the next day. Also found a possum dead on the floor another day. This is a wonderful product. I know rats have been in my house, so I left an open bag of pellets in the dining room and found another body on the floor. I don’t have any kids or pets anymore. I do highly recommend this product!” — mary baker via Amazon
“…The first few uses were actually working. I would find dead rats and mice everywhere at my job. But after a while, it seems that they became immune to eating, They finish all the bait, but I haven’t found another dead one in a long time. I noticed that they just hide now, but they are still all over the desk and messed up my printer. I’m still in search for a product that will actually keep working and killing these rats….. This product would probably be great for someone who only has a few rats” — maria via Amazon
Best Rodent Repellent
What Are People Saying About the Natural Armor Peppermint Repellent?
Among the positive reviews our team found for this spray, many liked that it didn’t have an overwhelming smell, was long-lasting, and eliminated unwanted insects. However, we also noted that those who left negative reviews claimed that the pump leaked and was difficult to use.
“I started using this product after rodents (probably rats) ate the wires under the hood of my car during the pandemic when I wasn’t driving, and the car sat for several weeks. The repair people told me to spray the engine compartment with peppermint oil. I have been doing that periodically ever since, and I have had no further problems.” — Friend of Music via Amazon
“Have you ever used a garbage spray bottle that barely spits and dribbles no matter how hard or fast you pump it? You can verify the pickup tube is submerged, the cap is tight, the nozzle is adjusted properly, and you just can’t get a reliable spray. If you have the option to buy the product for less without the junk sprayer, do that and put it in a quality spray bottle as needed.” — Rand via Amazon
Best Rodent Bars
What Are People Saying About the Farnam Just One Bite II Mouse and Rat Bars?
Overall, we found that most customers gave these bait blocks a four- or five-star review, claiming that the bars were effective in getting rid of their rodent problem. Users also enjoyed a rodent-free home long after the bait was deployed and consumed, so the product had a long-lasting effect for them. Critically, we did see some users that said the bars smelled foul and were overpriced given the other rat poison options on the market.
“….Within a week, there was no sound of mice or rodents. This stuff works great. After a few months, I checked and refilled the stations. This stuff worked like a charm for any rodents that came inside or that were already inside. Fast forward 2 years. I keep the stations filled in the same locations. There is no evidence of rodents in the house, garage, or attic.” — Not a cop. via Amazon
“Not sure if there is peanut butter in this bait, but it does not smell so great. Not a strong smell, just not a good smell. I did not notice any mice eating it, I had a motion camera set on this thing for weeks. Do have to handle with great care, keep pets and kids away. Second gen active ingredient is no joke.” — T. Nguyen via Amazon
Buyer’s Guide to the Best Rat Poisons
Rat poison is a useful and easy way to get rid of rats. To narrow down your search for the best rat killer, you should examine the types of poison available and determine which one works best for you based on how many rats you have, where you live, and if you need to use it indoors or outdoors.
From there, you can examine the types of bait available, how long it would take to kill the animals, and the toxicity of the bait, which is especially important if you have children or pets. Read our buying guide below for more information on choosing the best rat poison for you.
What are the different types of rat poison available?
The main types of rat poisons include acute toxins, calcium releasers, and anticoagulants. Acute toxins release a small amount of poison into the rodent’s bloodstream until it builds up to a lethal dose. Meanwhile, calcium releasers increase the total amount of calcium in a rat’s bloodstream, causing its organs to shut down. Anticoagulants cause internal bleeding, which leads to death once the rat loses too much blood.
Our research shows that none of these options are painless deaths, so if that’s something you’re conscious of, you may want to look into other ways of killing rats, such as snap traps.
What are the types of bait?
Rat poisons that we found were available in block, chunk, nugget, seed, and bar forms. Ultimately, there is little difference between these forms and there’s no best way to eliminate rats. Larger pieces, such as blocks, chunks, and bars, may be slightly easier to set up and less messy. Larger pieces of bait are sometimes known as bait stations.
What is the typical kill time of rat poisons?
Poisons are either slow- or fast-acting. While slow-acting poisons take days to kill rodents, they can usually kill more. This is because the rodent may carry the poison back to its friends, thinking that it’s sharing a meal. Fast-acting poisons work right away, but we found that other rats may catch on and learn to avoid these baits.
Are rat poisons toxic to other animals?
Standard rat poisons are made with chemicals that are also toxic to pets and humans. However, if you’re using a repellent as opposed to bait, you can usually find options with non-toxic formulas. These repellents are usually made from natural ingredients, such as peppermint oil. While anyone can use them, we find they’re particularly useful in homes with pets and children who don’t know to avoid pest poison.
How To Prevent Rats
Instead of eliminating rats, you can help avoid an infestation altogether with preventative measures in your home.
Fill holes and cracks
Most rats can squeeze through a hole that’s around the size of a quarter. Go around your home, and make sure any holes or cracks of this size are filled. Pay special attention to doors, windows, basements, and garages.
Don’t leave food out
Rats are coming into your home to look for food sources. One easy way we found to prevent them from accessing any is by keeping trash cans closed, wiping counters, and storing food in a fridge or airtight container.
Remove possible habitats
Our team found that rats are drawn to areas where they can hide, such as in old appliances or cars, piles of wood, metal, or trash, and heavy vegetation. Eliminate as many of these habitats as possible to steer rats in a different direction.
Frequently Asked Questions About Rat Poisons
What is the most effective rat poison?
We found that the strongest and most effective rat poisons typically contain bromadiolone or difethialone as their active ingredient. Slow-acting poison tends to be more effective than fast-acting poison because it won’t deter other rodents from eating the mouse bait, leading to longer-term rodent control. Additionally, knowing what species you’re dealing with can help you find the most effective rat poison for the job at hand.
How does rat bait work?
While the specific method of killing varies depending on the type of poison bait, all rat bait stations work in generally the same way. A rat sees the poison as food and eats it. The poison eventually works its way through the the body, leading to dead rats.
How long do poisons take to kill rats?
Fast-acting poisons kill rats within hours, while we find that slow-acting rodent baits can take as long as a week.
How do I know if I have a rat infestation in my home?
Here are some common signs that you have a rat problem in your home:
- Urine or droppings on the floor
- Scurrying or squeaking sounds
- Damage to baseboards
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