Rats are very canny rodents. When they see that one rat died from the bait, they won’t eat it. These rodents multiply quickly, so if you don’t deal with your rat problem in a timely manner you will have a huge rat problem in your house.

It is important to remove rats as soon as possible. Poison baits and rodent traps are an effective way to remove pesky rats. However, trying to kill rats homeowners often make mistakes. We suggest different methods of killing disease-carrying pests. Learn more in this article.

What kills rats?

When it comes to lethal rat control, traps and poisoning are the most common methods. However, neither will provide long-term control if areas where pesky rats are entering structures are not repaired.

Rats scent mark with urine to communicate with each other.

d-CON to kill ratWith a vide variety of options to choose from, you are always sure to find what you need to control pesky rats. With both rat control kill traps and poison baits you can easily handle rat infestation.

Poison for troublesome rats

Although, poison is actually the most efficient and fast method for eliminating rats in large numbers, before purchasing poison, you are to know that the same deadly-to-rats ingredients are lethal to humans and your pets.

Use poison for pesky rats? Be attentive.
Remember, these rodents won’t die instantaneously after eating it. They may wander into your walls or attic before dying.
As a result, this may cause a disgusting foil odor and attract flies.

These days, there are many poisons that are known to be highly attractive to troublesome rats and can exterminate large rat population in a matter of days.

Blue rat poison on handCommercial rat poisons are necessary if natural rat repellents, deterrents and traps are unsuccessful.

There are 2 types of rodenticides:

  • First generation rodenticide – poison that kills slowly. Baits that come to the first generation group have a cumulative effect: rats don’t die immediately; they must repeatedly consume poisonous bait.
  • Second generation rodenticides – a single consumption is enough.

Benefits of using rat poison: Although trapping method is very effective, using poison is generally cheaper. Poison for rats is produced in blocks, bars, chunks, and pellets. You don’t need to check poison bait every day. Moreover, it is more beneficial to use rodent poison than other rat control options in big constructions and locations such as hangers and sheds.

Where to place poison: in rat traffic areas – around sinks, under the cabinets, under porches or in rat holes.

Bait station, bait blocks and pellet place packs

Types of poison

Poison is very efficient in eliminating destructive critters. However, you are to know that chemicals that are used to exterminate these rodents are also poisonous to other animals. Therefore, you need to use poison carefully and according to its directions. Some rat poisons are lethal after 1 exposure while other options require more than one.

Nowadays, there are a huge number of active ingredients registered as rat rodenticides.  We can group these pesticides according to how they work.

Here are the following types of rat poison:

  1. Bromethalin poisonBromethalin

    When compared to other varieties of rat poison, this neurotoxin is relatively safer for use around pets. Bromethalin works by killing rats a couple of hours following a single poison ingestion.

    Top Gun bait blocksWhat to buy: Top Gun – a fast acting bait that gives good and quick results. The product is made of a mixture of natural foods to attract rats, while Bromethalin – the active ingredient – kills rats quickly.

    Cost: $44.50

    Benefits: Due to its quick action, this bait block is an ideal solution for situations where a quick clean out is needed.

  2. Anti-coagulants
    Anticoagulants contain dangerous chemicals that are known to interfere with blood clotting. (Death occurs 1 to 2 weeks after lethal dose ingestion). Bromadiolone, difethialone, chlorophacinone, diphacinone, and brodifacoum are all anticoagulants.
    The most popular anti-coagulants are wafarin and fumarin. Although these poisons are frequently used for rat control, they are not recommended for use around kids or pets.
  3. Poisoned ratCalciferols
    Calficerols (Vitamin D, D3 and D2) are another type of rodenticides. They are toxic to rodents and work by affecting Vitamin D and calcium levels in the body. In rats that consume the poisonous bait it as a rule causes hypercalcemia – a well-known condition where the level of calcium is raised to such a big degree that the stomach, blood vessels, kidneys, heart and lungs are damaged by calcification.
    If the poisoning is severe enough – raising the calcium level – it leads to death. These rodenticides act slightly slower than bromethalin. It usually takes a day after consumption to reach its effectiveness.
    Calciferols and anti-coagulants are often mixed in a bait to increase the chances of death and decrease the time involved.
  4. Combinations
    In some countries 3-component rodenticides – vitamin D, anticoagulant and antibiotic – are effectively used to kill pesky rats.

How does rat poison work?

It works as an anticoagulant causing haemorrhage by preventing rat’s blood from clotting. Anticoagulants work by depleting Vitamin K stores – which is a very essential component in blood clotting – in rat’s system. Along with this rodenticides contain big doses of other anticoagulants such as indandione and 4-hydroxycoumarin anticoagulants which cause a huge trauma to the rat’s blood vessel walls.

Rats – dead or alive – can carry dangerous-to-humans infections. If killed by poison, carcasses may carry residues of rodenticides that can present risks to wildlife or predators.
Therefore, bait stations, carcasses and uneaten bait should be disposed of.

Rat poison boxesWhen rats begin to bleed, there is no vitamin K to clot the blood. As a result, rats die within two days from internal haemorrhaging.

Rat poison box is the safest way to protect rat poison. You can set poison inside the box that will lure the critters inside and once consumed the rat will die.

What to buy:

  • Rat killer box by RentokilRentokil Rat killer box – efficient pre-baited box that consists of anticoagulant poison Bromadiolone. The poison is known as highly-palatable option that can effectively control pesky rats out in the yard and inside the house. What’s more, it is a kid and pet friendly product.

    Cost: $15.00


    • Rentokil is already pre-baited; You don’t need to deal with any poison;
    • The product contains sufficient poison to kill up to five rats;
    • The box is reusable.
  • Rat Killer by RodineRodine Rat Killer – anticoagulant poison that contains Bromadiolone. The product can be used in the garden and within homes.
  • Tom Cat Rat Killer IITom Cat Rat Killer II – the reusable station effectively kills up to three rats with 1 bait block while keeping pet paws and child fingers out. The product is weather-resistant which makes it ideal for use indoor and outdoor.

    Cost: $15.99

    TomcatHow to use:

    • Identify the location of rats’ activity.
    • Place one or two blocks of bait in the station.
    • Place the option where you have seen sights of rats.

What is the most efficient rat poison?

It’s difficult to say what poison is the most effective. It must be stressed that rats will not travel far from their activity areas to locate poison baits. The key to success in rat control with poison is placing the baits where these creatures will repeatedly encounter the bait.

Such places include:

  • at or near the rat’s regular feeding sites;
  • in or close to rodent burrows;
  • in pathways between the rat’s nests.

We suggest using the following:

  • Bait Block rodenticide by The JT EatonThe JT Eaton Bait Block rodenticide – the most efficient rat poison with specially made blocks that have attractive-to-rats peanut butter flavor to lure and poison rats. The product contains Diphacinone which effectively eliminates rats a few days after consumption.

    Cost: $32.30


    • The poison works quickly. Rats will consume poison peanut-butter blocks on the very 1 day after you place them at garage or basement, and disappear gradually.
    • It’s easy to break rodenticide into pieces.
    • Comes with a one year limited warranty.
  • Havoc-XT Rat BaitHavoc XT Rat Bait by NEOGEN RODENTICIDE – a very effective poison. Effectively kills Warfarin-resistant Norweigen Rats. These horrible critters may eat a lethal dose in 1 feeding with first dead rats appearing four or five days after consumption begins.

    Active ingredients: Brodifacoum and Bitrex.

    Cost: $38.20


    • Due to its weather formulation it works on rats at any time of the year.
    • You don’t have to deal with strong, unpleasant smell of dead rats. After being eaten by rats Havoc Rat Bait causes dehydration in their bodies and rats manage to leave your property in search of water, but if not you will not notice any smell.

Best way to kill rats: A simple answer to rat problem

If you are looking for a simple and efficient answer to rat problem, look no further than this smart solution:

D-Con Ready Mixed Baitbits – proven killer of rats. D-Con contains eight baits trays which require no advance preparation. Just set them in the approximate areas and wait.

The poison is:

  • Perfect for hard-to-reach areas – under the couch or refrigerator, inside the closet or beneath the sink.
  • Effective against rats – especially horrible Norway rats – and a variety of rodents. Rats may get a lethal dose within the first feeding.

Cost: $32.97

If you see that the rat problem is minor – like a few rats living in ground burrows – then the direct placement of poison rat baits into the burrows can solve the problem.

However, when the infestation is more serious, a combination of direct placement of poison baits together with the use of bait containers will be the best approach to achieve effective, economical and quick control.

You can find further details of Rats Control here.