How long does it take rat poison to work? - DIY Pest Control (2024)

Possibly one of the most common questions we get asked. Well, there are several factors, which may increase or decrease effectiveness. For example, well placed rat poison in a heavily infested area can lead to effective results quickly. Whereas, poison which is placed without thought or not placed correctly will lead to negative results when controlling rats. At DIY Pest Control, we stock a wide range of rat poisons in different forms along with expert advice to deliver professional rat control results.

Types of rat poison

Rat poison comes in various formulations and it is becoming harder for the public to purchase in any other than small pre-packed ready to use sachets. Rats prefer bait that is highly palatable. The sweeter the bait the longer the rats will feed. The three key active ingredients used in rat poison are either difenacoum, bromadioline or brodifacoum. These poisons affect the rats’ blood clotting response, resulting in the rodents dying a few days later. The range of rat poisons we offer are;

  • Rat killer bait
  • Grain bait
  • Bait blocks

We strongly recommend placing rat poison in rat bait boxes for extra safety around the home. Our range of poisons can be purchased in different sizes depending on the size of the infestation you need to control. Alternatively, we sell rat control kits which contain everything you need in one handy pack.

How to increase the effectiveness of rat poison

Now you know the different types of rat poison available, our experts have shared their ideas on how to make your rodenticide poison work quicker and deliver better results. Firstly, once the bait is laid the rat poison should be inspected frequently. Areas where bait has been eaten should be replenished as soon as possible. We recommend inspecting your bait no later than 3 days after it was laid and at least every seven days thereafter. Make sure to continue baiting until all feeding activity has stopped. Check out our top tips below for expert advice on the use of rat bait stations.

Rat bait stations

Bait stations are an effective way to secure bait safely. They also help to protect children and pets from coming into contact with the poison as well as protecting the poison from bad weather conditions.

  • Place rat bait stations roughly 30 feet apart and for heavier infestations 15 feet apart. Try and place the bait in the most affected areas.
  • Avoid moving the stations once placed as rats respond positively to familiarity.
  • Rats eat more bait than mice so replenishment is particularly important.
  • In wet conditions consider using all weather or weather resistant blocks.
  • To encourage the rodents into the bait boxes, use natural and familiar materials inside and around them

How long does it take for rat poison to work?

Once the rat consumes the poison it can take 2–3 days for the rodent to die. Incidentally, once a rat is poisoned it will stop feeding and this greatly reduces the risk of secondary poisoning. However, as mentioned above the effectiveness of the poison depends on several factors:

  1. Placing the poison correctly
  2. Replacing spoiled poison straight away
  3. Removing ALL other food sources
  4. Maintaining familiarity
  5. The size of the rat

If you need advice feel free to get in touch with a member of our team who will be happy to assist you with your rat infestation.

Recommended Products

Rentokil Rat Weatherproof Blocks 200g

These ready to use bait blocks are perfect for amateur use and this handy pack contains 10 bait blocks, for indoor and outdoor use. These are perfect to be used within a bait station.

1 pack price = £7.50 each

3 pack price = £6.52 each

Rodex Whole Wheat Sachets x5

This poison comes in 150g sachets. They are perfect for throwing into inaccessible places where they will stay dry until a rodent comes along and chews into the bag. They should only be used in lockable bait boxes and inaccessible areas to prevent access by non-target species.

1 pack price = £11.04 5 sachets (£2.21 each)

3 pack price = £31.20 15 sachets (£2.08 each)

Rentokil Rodine Rat Killer Grain Bait

  • Sale!

    Rentokil Rodine Rat Killer – 6 Sachets

    £6.12£32.10

This ready to use poison is perfect for amateur use and the handy pack contains 6 x 25g sachets for indoor and outdoor use. We also recommend placing this poison within a bait station. This poison can kill up to 12 rats.

1 pack price = £5.70 each

3 pack price = £4.98 each

Protecta Sidekick Rat Bait Box

  • Sale!

    Protecta Sidekick Rat Bait Box

    £9.00£24.48

This bait box is an economical way to upgrade from using non-tamper resistant bait stations to the security of tamper-resistance. It locks when closed and unlocks with Bell’s two-pronged Protecta key. This bait box is perfect for all weather conditions, its interior corners are rounded for easy cleaning and it opens easily for quick bait placement.

1 bait box = £7.14 each

3 bait boxes = £6.50 each

Conclusion

It is difficult to say exactly how long it can take rat poison to work, as there are many variables. The key is to be persistent and be vigilant. Placing the bait on the right rat run is vital. If the bait is not being taken, you might need to move it. Make sure there is always bait down and it is always palatable. We provide you with the most effective poisons on the market to help you control rats.

If you need any assistance or have any questions feel free to contact us today or get in touch with one of our experts on 01332 340898.

Read more: How to control rats

How long does it take rat poison to work? - DIY Pest Control (2024)

FAQs

How long does it take rat poison to work? - DIY Pest Control? ›

Anticoagulants generally take 2-3 days to kill mice and 3-6 days to kill rats. No exact timetable can be given because rodent's systems may vary depending on different factors. Rodents can be picky about certain types of bait, so do not be surprised if you notice the bait has not been eaten in a day or two.

How long does it take pest control to get rid of rats? ›

The time it takes to remove rodents depends on the level of infestation. A straightforward case will get rodents removed in 3-6weeks. A property with a severe infestation problem may take up to 3 months.

Where do rats go after eating poison? ›

After eating the poison, the pest will try to find water before they die. Thus, the pest will more likely die outside rather inside a house or building.

Will rats come back after poisoning? ›

Poison is very good at controlling rats and stopping them from visiting again. We recommend placing the poison inside the walls, in the loft, or in the basem*nt. Alternatively, you can leave it under the kitchen sink or in your garden. Be warned, there will be dead rats you need to dispose of.

Do rats slow down after eating poison? ›

Poison does not cause the rodent to go out to drink, and thus die outside. Rat poison makes the rat lethargic, and it dies wherever it happens to be when the poison takes effect.

How do I know if rat poison is working? ›

Check rat bait stations daily and refill continually for the first 7 days. After 7 days, activity by rats should reduce considerably and you may only need to check the rat bait every other day or so.

What keeps rats away permanently? ›

Filling holes and cracks that provide entry points and installing professional exclusion systems from companies like Cat-Guard provides a safe, natural, permanent barrier to keep rats out.

Do rats seek water after eating poison? ›

Q: Are there baits (poisons) available that will make rodents go outside looking for water? A: Eating bait will not change a rodent's "normal" water requirements. It is a myth that rodents will seek water outdoors after eating bait and then die outdoors. There is adequate water in your home to meet all rodent needs.

How do rats act when poisoned? ›

Once rats have been poisoned, they will try and escape their hiding places in search of dehydration or other ailments. This presents a risk to other predators nearby. If a rodent is too weak from the toxins, they won't escape the walls or out of reach hiding places.

How many rats live together in a house? ›

Rats are social by nature, so they prefer to live in groups. The size of their colonies, however, could vary widely. The ordinary Norway rat, for example, one of the most frequent species found in cities, usually lives in groups of up to 12 rodents.

Will rat poison attract more rats? ›

Poison bait by design is food to the rats. Putting out poison attracts rats, just as putting out a quail block attracts quail. Outside bait stations provide an ideal harborage for rats to hide in, safe from predators. Rats will even build nests inside of a bait station.

What home remedy gets rid of rats? ›

Ammonia Liquid

Another easy solution how to get rid of rats quickly is by placing a bowl full of ammonia liquid near holes and spots where rats are seen around. Like onions, the smell of ammonia is too strong for the rodent's liking, and there is a great chance that this will scare the rats away from the house.

Why do rats scream at night? ›

Rats screech or scream when in pain or distress, a sound commonly heard if a dog catches a rat. They can also whimper when they're in pain.

How effective is pest control for rats? ›

So, what is the fastest way to get rid of rats? Pest control is the most efficient method to get rid of rats quickly but the usage of mouse traps, snap traps, chemical baits, and live traps are all effective methods to get rid of rats as quickly and effectively as possible.

How long does it take to get rid of a rat infestation in the house? ›

If the infestation is manageable, it will likely take an exterminator one to three days to get rid of rats. The extermination might take up to a few weeks for more complex cases with multiple rats that are difficult to locate.

Do rats come back after extermination? ›

Rats may return after extermination if the conditions that attracted them in the first place are not addressed. For instance, if your environment still provides easy access to food, water, and shelter, new rats can come back even after a successful extermination.

How do you get rid of rats permanently fast? ›

How to Get Rid of Rats Permanently
  1. Check for Signs of Entry.
  2. Seal and Secure all Entry Points.
  3. Eliminate all Food Sources.
  4. Remove Rat-Friendly Environments.
  5. Bait with Rodenticides.
  6. Install Multiple Traps.
Mar 11, 2022

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