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🐭 Take back your space—fast, focused, and farm-ready rodent control!
Tomcat Bromethalin Bait Chunx is a professional-grade rodenticide designed for agricultural use, delivering rapid and reliable elimination of Norway rats, roof rats, and house mice. Each block uses the potent neurotoxin Bromethalin to kill rodents within days, outperforming traditional anticoagulants. The weather-resistant blocks are sized to prevent removal by pests and must be used within 100 feet of man-made structures, ideally inside tamper-resistant bait stations to protect children, pets, and non-target wildlife. Packaged in a 4-pound resealable bucket, this product offers an effective, long-lasting, and affordable solution for serious rodent infestations in outdoor and farm environments.

| ASIN | B005BV0DD2 |
| Active Ingredients | Bromethalin |
| Best Sellers Rank | #17,907 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #169 in Pest Control Baits & Lures |
| Brand | Tomcat |
| Brand Name | Tomcat |
| Customer Reviews | 4.4 out of 5 stars 23,573 Reviews |
| Global Trade Identification Number | 00048745222448 |
| Included Components | Pest Control; home-pest-repellents |
| Item Form | Pellets |
| Item Type Name | 4Lb Mouse Bait Chunx |
| Item Weight | 4.2 Pounds |
| Manufacturer | The Scotts Company LLC |
| Model Number | BL22244 |
| Part Number | 008-22244 |
| Target Species | Mouse |
| UPC | 048745222448 |
| Unit Count | 64.0 Ounce |
J**T
Bromethalin is very effective. Affordable too.
The active ingredient in this rodenticide is bromethalin. Unlike first and second generation rodenticides which function as anti-coagulants, bromethalin is a neurotoxin, making it far more effective and faster. First and second generation rodenticides usually require a rat to eat quite a bit of the poison, then you have to wait another 5 to 7 days for the creature to die. Usually more than a week passes before the creature died. This doesn't sound like much, but a week of damage in your garden or in your house can be rather significant. With Bromethalin, one single lethal dose is all that is required to kill the creature. The rat usually dies around 3 days later. Bromethalin, because it is so effective, is also very toxic to humans and pets, so it is far more likely to affect non-targeted creatures too. You will need to wear gloves as it can be absorbed through the skin. Be careful not to inhale small dust particles, although that is unlikely to happen as it comes in blocks. There is no antidote available for Bromethalin poisoning, should someone ingest it, so be very careful if you have kids or pets in the backyard. Unlikely first and second generation rodenticides that are generally less toxic to groundhogs and opossums, bromethalin will kill them. They are not meant to be used that way and it may even be illegal in some areas to kill these creatures using bromethalin, so try not to leave these lying around in your garden in the open. You might end up with more than just dead rats. The same goes for any pets in the area. It is advisable to only use Bromethalin in suitable devices that have a small hole large enough for mouse or rats. Bromethalin is an effective tool for controlling the population of mice and rats in your garden. I really like this product as it is effective, yet affordable too. I find that I use less of this compared to less effective rodenticides. I prefer the blocks compared to the small rice-like granules packets. The granular packets often contain too much bait every per packet. The blocks are much easier to spread and are a smaller portion too. They fit well in mice traps. Using one or two at a time is enough for a particular spot, so they last a long time. There is one thing to note: These are best suited for outdoor or garden use. The reason is that if you use these indoors, the rats are likely to end up dying behind a wall, in the air vent, or in some unknown corner of the house. The smell is not pleasant and can last for a few weeks. If you are looking to handle mice that are inside the house, I would recommend getting an electric mouse trap. That way, they do not end up rotting behind some furniture or wall. This rodenticides are best reserved for outdoor use.
D**A
Highly effective rodent control - fast-acting professional results!
Tomcat Bromethalin Bait Chunx are incredibly effective for rodent control and have solved my pest problem completely! Living in a rural area with barns and outbuildings, rodent control is essential for protecting stored feed and equipment. These bait blocks work exceptionally well - I noticed results within days of placement. The bromethalin formula is highly effective and provides faster results than traditional anticoagulant baits. The chunx format is perfect - the blocks are large enough that rodents can't carry them away, and they're weather-resistant for outdoor use in bait stations. I love that they're specifically designed for agricultural use, making them ideal for barns, sheds, and farm buildings. The 4-pound bucket provides excellent value with plenty of blocks for multiple bait stations. The blocks maintain their integrity even in humid conditions. They're easy to handle and place in bait stations. The effectiveness is outstanding - my rodent population has been eliminated. I appreciate the quick-acting formula that provides humane control. The blocks are palatable to rodents and consistently consumed. Perfect for farmers, homeowners with outbuildings, or anyone dealing with serious rodent issues. The resealable bucket keeps unused blocks fresh. Essential for protecting property, equipment, and stored goods from rodent damage. The professional-grade formula delivers reliable results. Great value for the amount you receive. Highly effective pest control solution that actually works!
A**R
Definitely worth a try!
Worked damn near instantly. We live out in a more rural area, so we've come to occasionally have pest issues. Was told to try these along with sticky traps if they need to be in the house. I cut a few in half and put some peanut butter on them to make them more appealing and in literally about 2-3 days we've found a good number of dead rats around the yard, in the sheds, and a few in the attic. Been using this stuff since. Definitely am recommending this product to anyone experiencing pest problems.
L**Z
10/10
If you have mouse or rats ill tell you it works. Im pretty sure this is what pest control people use. I had pest control once charging me probably 300 like for like three weeks. I bought the same black boxes they used and these pail of bait chunx. Set it up and boom speed it worked mouse ate it up and died except you have to find where mouse die if they escape. But instead of getting charged 300🤨 for this price its well. Make sure you glove up incase when handling the bait. I still have left over since its been a year. No more critters for long time.
C**Y
THIS IS YOUR SOLUTION!
Oh man, I have been waiting to write this bad boy for a minute. So, my wife and I moved into our new home with limited signs of mice evidence. I did notice some droppings around our water heater, but assumed they were old and well taken care of. Fast forward a year and we were being ATTACKED! It went from no mice activity to holes in our dog food bags, crawling in the walls, and eventually them running around in the house. The house was the last straw...I began battle. Naturally I went for the cheapest options first. We did wooden mouse traps with peanut butter. They would get set off and the peanut butter would be gone, but no mouse. Next, giant wooden rat traps. Same story. Then, sticky pads and traps combined. Got two kills with the sticky pad, but the mice still seemed to begetting off of them somehow. I WAS LOSING MY MIND! The freaks were still running around the house and pooping everywhere. My whole garage smelled terrible and it was seeping into the house. I would even flip the light on real quick and peak my head into the garage only to see them sitting on my golf bag staring at me. They didn't even care. I took that personally and decided there were no longer any rules. I bought 24 JAWS mouse traps from amazon. These were not as productive as I would have liked, but I was getting kills. Then it happened, 1 RAT (bc this motherlover was huge) got caught in three traps at the same and was still flailing around in my garage. I grabbed my shovel and took its head. The line had been crossed. I was committed. POISON, it had to be done. I read reviews for hours and everyone seemed to have the same issues I did. So I got the bait and spread it in 3 of the main locations I saw activity. They ate it fast, like within the hour. Every time one disappeared, I replaced. Eventually the bait stopped disappearing. Then came the smells. Mice dying in my vents and walls. From what i've read, that will go away. BUT THEN! And you aren't gonna believe this nonsense... My wife and I are watching TV downstairs and something caught her eye. There was a flipping rat sitting within a couple feet of us staring at our Xmas tree. She flipped, I flipped, our son laughed. It didn't move. I walked up to it. Nothing, it stood cold. The poison must have it messed up in the head, right? I decided to sweep it into a box; didn't have to. I put the box down and walked right in. After staring at it for twenty minutes I realized what had to be done. I took it outside and removed it's head with my shovel. The dded was done. Now we wait.... Listen, this stuff will solve your problem. But when the time comes, you will have to "take matters into your own hands". God's Speed.
B**7
Its Control, Not Total Elimination.
Okay, I see one star to 5 stars. I am not a company spokesman but I can tell you few thing about rats. Number one they are smart, much smarter than you think. I live in the city with restaurants not far from my home and surrounded by neighbors with dogs and cats, rats love to eat their food too. The best poisons are long gone; the government forced them off the market. This is the same bait used by pest control companies. The EPA ban all other poisons several years ago. What you should know is rats are territorial, Once you have killed out one colony another will soon move in if there is a food source. The best method of removing rats is to get rid of their food source. If that is not possible then you need to poison them. Traps don't work. Why? When one rat is caught the other will avoid the traps. Also, you need to make sure it is rats or mice that are eating your bait. My bait was disappearing every night. I set up my game camera only to find possums and raccoons raiding my bait stations. I had to come up with something different. I used a 4 foot long 3.5 inch PVC pipe, blocked off the end to a point that a raccoon or possum could not get into my station. I secured the pipe so that it could not move. I only bait at night. Generally, rats are nautical, they move and feed at night. After I set this station up I started to find dead rats. The one thing about using this poison is that the rats don't usually avoid it but they wander off and die. The other rats are not suspicious of the bait. Mice and rats can reproduce every 90 days and have 8 litters every year. The mice/rat gestational period is only 21 days. You'll never ever get rid of them completely. The trick is to control the population. There is no one who hates rats more than me. I have learned how to keep them under control, but we'll never get 100% rid of them. The best way to control is to eliminate their food source and your neighbors should be doing the same. UPDATE: after only three days the rodent damage stopped, I am not seeing rodents on my camera. I will continue to keep the bait out but this has worked 100%. As long as your neighbors keep feeding their pets outside rodent will keep coming. Control the problem. Your neighbors are not going to change their ways, but you can keep the rodent at bay by baiting them.
M**N
Effective.
Be sure to use these in containers that do not allow mice to remove the block. I had put loose blocks around in inaccessible locations, and mice moved them to other locations that could be accessible to pets and kids. Unfortunately I've used too many of these due to gaps (mostly fixed) in house construction, that still allow occasional entry at unknown locations. These supplement conventional traps that I'm not always around to empty, and provide extended protection when the house is empty for a period of time. They work in keeping the indoor population down - mice eat it and generally disappear with a few found dead and keep the basement free of active infestation.
W**D
It works if you can ever get anything to eat it, but it's a cruel way to die
We live in the woods and living with nature is just part of the deal. Things had been fine forever, but something changed in the last few years and rodents seemed to overpopulate and take over and become very aggressive. Mice, chipmunks, and squirrels started breaking into the attic and crawlspace causing thousands of dollars of damage to the insulation and to the heating and air conditioning ducts. Mice in the house were eating food and clothing and destroying lots of other stuff. Voles were eating plants in the garden and mice in the garage were eating and destroying things. Chipmunks had caused broken sidewalks and driveways with their tunnels undermining them and they had even tunneled under the foundation footing to come inside the crawlspace and chewed into many of the HVAC ducts. There were nuts and acorns in the ducts and all over the crawlspace. I really don't want to kill things so I tried all of the humane ways I could find to exclude and repel them but nothing worked. Finally when I discovered a rodent nest inside one of the heating ducts and realized that we were obviously breathing their hair and feces as it blew the air into the house, I decided enough was enough and it was time to take serious action. I stuck with mouse traps in the house because we didn't want poisoned ones dying in the walls or house. Outside and in the garage I tried this product. First I tried using rat traps to catch the squirrels, but didn’t catch a single one in a few weeks, so then I figured maybe I had to go with poison even though I thought it must be a terrible way to die. I researched the different poisons and thought that the common anti-coagulants seemed the worst—dying from internal bleeding. Finally I settled on Bromethalin thinking it might be the “least bad” of them all. And that’s how I ended up choosing these Tomcat Bait Chunx. First, yes I know this product is not labeled for squirrels and chipmunks but they are rodents and I know it will kill them too. Day 1 I put a few full chunks on the trees and within a few hours 3 were gone so I figured we were in business. I continued to put out chunks and parts of chunks but fewer and fewer were being taken and I continued to have lots of squirrel problems. It was early spring so I thought maybe they were storing them in their nests and not actually eating them. I put some chunks near the vole holes and they all disappeared and after a couple of weeks it seemed all of the voles were gone. Success. In the garage, I never saw so much as a nibble on any of the tomcat chunks so obviously the mice don't like them. Fail. I went back to mousetraps baited with peanut butter and continued to catch mice and one shrew. After about a week I started seeing fewer squirrels so the poison seemed to be working. Hopefully success… Then one day I went outside and a tiny baby squirrel ran straight up to me and started climbing up my leg. In all of years of living out here I'd never seen a squirrel approach a human, much less run up his leg! It was obviously scared and alone. I knew that the poison must have killed its parents because you never see a squirrel that small. It must have come out of its nest because it was starving. You could see the look of fear in its eyes and a "help me" kind of attitude. So here I was on one hand trying to kill them but on the other hand here's a scared baby begging for help. It kept climbing up my pant leg and sat in my (gloved) hand and tried to keep climbing up to my head. I sat it down and got it some nuts and water and it gobbled them up for a good 30 minutes and then tried to run up a tree but it wasn't strong enough so it ran off into the woods. The next day I found its back legs and tail. Something had eaten the rest of it. I thought to myself...this is the circle of life...someone dies and someone is fed. It's nature. But by then the squirrels stopped eating the tomcat chunks. Who knows if they lost their taste for them or if they figured out they were poison. So I started cutting up the chunks and mixing them with peanut butter and squirrels started eating them again. Over the next few days I saw a few more baby squirrels in the same orphaned situation so I gave them food and water also. Then one day I watched a baby squirrel try to run and then it fell over. It would run a few feet and fall over. Run a few feet and fall over. I knew that the active ingredient Bromethalin works on the nervous system, eventually causing paralysis and then death and here I was seeing it in action. I felt bad to watch this baby squirrel suffer and so I decided I had to find a more humane way that would lead to as instant a death as possible. I looked into ones that shock them, smash them in the head, and every other method I could find. Finally I settled on the old-fashioned conibear 110 traps baited with peanut butter and have mainly stuck with that method ever since. It’s mostly an instant kill but sadly, not always. I still use these Tomcat chunx mixed with peanut butter for the squirrels and chipmunks that continue to be a problem and simply won’t get trapped. Total kill has been 24 squirrels by conibear trap and an estimated 5-7 by Tomcat chunx, so you can see that the traps are much more effective and also more humane. I also caught 2 chipmunks with the conibears and probably a few more with the peanut butter poison. Again, I feel bad for having to go to this extreme to protect us and our home, but it seems like it has to be done because they just keep coming and trying to break in. As I was anguishing over killing things, a buddy of mine told me “Look, we’ve killed all the predators so things are out of balance and there’s nothing to kill the rodents. YOU have to be the predator.” And so, with that frame of mind I was able to do it and protect the health and safety of our family. Still I’m not happy about it. I take it seriously that I’m taking a life and anybody who uses this stuff should too. From what I’ve seen, poisoning is a cruel way to die and so I use it only as a last resort. I think the traps are a much more effective and humane way to go. As an aside, if I ever do have to buy rodent poison again I probably wouldn’t buy this product since the mice, chipmunks, and squirrels don’t seem to like it. There’s a peanut butter flavored bait by another company that I’d probably try next time.
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2 weeks ago
2 months ago