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Pest Expert Formula 'B' Rat Poison Bait Blocks 1.5kg - 5 x 300g (Maximum Strength)

Pest Expert Formula 'B' Rat Poison Bait Blocks contain the powerful single-feed rodenticide, Brodifacoum, at the maximum legal concentration (0.0029%). Formula 'B' Rat Bait Blocks deliver a highly palatable product, thanks to a special blend of foodstuffs.
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Pest Expert Formula 'B' Rat Poison Bait Blocks contain the powerful single-feed rodenticide, Brodifacoum, at the maximum legal concentration (0.0029%). Formula 'B' Rat Bait Blocks deliver a highly palatable product, thanks to a special blend of foodstuffs.

Formula 'B' has been scientifically proven to far outperform inferior products. Formula 'B' rat poison provides the perfect choice for rapid eradication of all rat infestations, large or small, indoors or outdoors around buildings. Also available in various pack sizes, or Pest Expert Rat Poison Killer Kits - See related products below or "Rat" category page.

Place bait where there are signs of rodent activity, like fresh droppings, inside or near nests and burrows, runways and rodent feeding places. Place bait points throughout the infested area. It is generally much more efficient to use a larger number of small bait points compared to a smaller number of large bait points. Large bait points increase the risk to wildlife and to other non-target animals.

For rat infestations: use bait points of up to 200g. place bait points 10m apart reducing to 5m in high infestations. Do not move or disturb bait points for several days after laying bait. If no signs of rat activity are seen near the bait after 7-10 days, move the bait to an area of higher rat activity.

For mouse infestations: Use bait points of up to 40g. place bait points 5m apart reducing to 2m in high infestations. Mice are very inquisitive and it may help the control program to move baits every 2-3 days at the time when bait points are inspected and/or topped up.


  • Wash hands and exposed skin before meals and after use.
  • For use only in areas that are in accessible to infants, children, companion animals and non-target animals.
  • Prevent access to bait by children. Birds and non-target animals (particularly dogs, cats, pigs and poultry).
  • Baits must be securely deposited in a way so as to minimize the risk of consumption by other animals or children. Where possible, secure baits so that they cannot be dragged away.
  • Unless under the supervision of a pest control operator or other competent person, do not use anticoagulant rodenticides as permanent baits. In most cases, anticoagulant bait should have achieved control within 35 days. Should activity continue beyond this time, the likely cause should be determined.
  • Keep locked up and out of the reach of children.
  • Search for and remove dead rodents at frequent intervals during treatment, at least as often as when baits are checked and/or replenished. Daily inspection may be required in some circumstances.
  • Dispose of dead rodents in accordance with local requirements.
  • In the UK poisoned rodents should be double-bagged using plastic bags and either disposed of in a household waste bin with a secure lid to prevent access of wildlife or pets or collected by a specialist waste contractor or the local authority.
  • When the product is being used in public areas, the areas treated must be marked during the treatment period and a notice explaining the risk of primary or secondary poisoning by the anticoagulant as well as indicating the first measures to be taken in case of poisoning must be made available alongside the baits.
When tamper resistant bait stations are used, they should be clearly marked to show that they contain rodenticide and that they should not be disturbed.
This product is authorised under Biocidal Product Regulations 2001 for use as directed.

Customer Reviews

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5 Stars
G. Jones -

Bait blocks did exactly what was needed. No more mice in my house! Bought with bait box that worked great as well.

5 Stars
Nomad Tyke -

Easy to handle, effective Rat Poison Blocks

When we saw a rat feeding on our bird ground-feeder in the garden, we wondered how to get rid of it. A quick internet search revealed Pest Control Supplies and their lockable bait station together with bait blocks appeared to be the logical solution and were duly ordered. They arrived very quickly and the bait station put in the garden, near the sighting. (We also temporarily removed the ground feeder). The bait is easy to handle and fits well into the bait box. The bait was being taken every day at first but after 7 days we haven't seen any sign of a rat and no more bait is being taken.

5 Stars
Moley -
Beccles, Suffolk


Item despatched very quickly and most blocks put in place the same day (behind a shed). Checked next day, all blocks gone! Popped two more behind shed and they too were taken. Not seen a rat for over a week now :)

5 Stars
Farm -
South Lincolnshire

Bait does the job.

5 Stars
Poison -

The product is very effective.

5 Stars
rat killer -

This bait works great around my farm the mice and rats seem to like it any how ;-))

5 Stars
Rats -

We have not seen or heard a rat since a couple of days after I but out the bait stations. Poison is going down, but the dogs are getting very bored as nothing to hunt!

5 Stars
Rat Poison -

Does the job. We have not seen or heard a rat since I baited the stations. About to order more I am so pleased. Thank you. Very quick efficient delivery.

5 Stars
Rat Killer -

Very good product - rats love it. Keeping them at bay this winter.

5 Stars
BrianP -

Quick delivery.

Delivered quickly. A good product. We used to have a real problem with rats running around in the gardens but within a month of starting to use the bait I have not seen one

5 Stars
Roland -
New forest

Used this product last week noticed a smell now rat dead good product very quick compared with conventional poisons.

5 Stars
Gabz Henz -

Best Rat Bait.

The best and most effective rat bait on the market, will sort out a severe infestation in days, will always have this product to hand now. Brilliant.

5 Stars


5 Stars
Antirat -

Well packaged and promptly delivered.

5 Stars
Ratman -

Have used this before ,good product.

5 Stars
Rat baits -

Once new object reaction was overcome this bait was extremely effective within 2 days of controlling a long term infestation. Very easy to handle and use.

5 Stars
Silverfox -
Royston Herts

Easy to install in bait box fast delivery service.

5 Stars
Pattiann -

I found the Rat and Mouse Bait very easy to use and store.

5 Stars
Gymrat -
Lake District

Gone Rat.

After trying several other baits I gave this a try. It comes in blocks, similar to bars of soap, and as such is very easy to handle and to place precisely where you want it. After eating 3 bars, the 4th was left half eaten .. no more rats.

5 Stars
RT -

Product was as described and service with delivery second to none. First class service and would recommend this company without any reservation whatsoever.

5 Stars
J3RK!N -

When I used it in conjunction with peanut butter, I had a kill within 12 hours.

5 Stars
Bird feeder -
Gower Swansea

Baited up bait box last week after family of Rats started to chase off ground feeder birds. Bait box tray now empty, no sign of returning rats.

So at the moment rat free. Worked very well.

5 Stars
David Eddy -

Very effective and seems to have done the job. Other products such as Raco Problok just seemed to provide the rats with a good meal. Bromadiolone Rat & Mouse Killer Poison Bait Blocks worked very well for me.

5 Stars
Ratty -

The rats certainly like them.

5 Stars
GG -

Good value.

I like the idea of combined treatments and it was offered at a fair price, works so far.

5 Stars -

These blocks do the job with no fuss.

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