Bisley pest control, heavy hollow point will do the job, but BR is quite correct Rats breed prolifically, a female can have 5 litters a year and more than ten pups to a litter. In five weeks the pups that were born will reach sexual maturity and off they go.
Trapping or Poison is far more efficient. I seem to recall that Vitamin D3 can be used as a rodenticide with less chance of secondary poisoning for cats or dogs.
Trapping or Poison is far more efficient. I seem to recall that Vitamin D3 can be used as a rodenticide with less chance of secondary poisoning for cats or dogs.