Quote:
Originally Posted by mental4astro
Don't use a bait with the active ingredient being Warfarin as rats and mice have built a tolerance to it. More effective baits use Bromadiolone or Brodifacoum. Be careful with this stuff of course too, as it doesn't discriminate with native animals.
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That's definitely rat damage. I've seen it many times. Rats, just like rabbits, need to constantly wear down their teeth by chewing as their teeth keep growing in length, unlike us. That's why they chew away electrical cables in houses.
Unfortunately the rat poisons you've recommend Alex are the absolute worst for the local wildlife. Any rat poison which claims to be instant kill is extremely poisonous. That's how they're so effective. Unfortunately this poison remains in the rat carcass. Imagine them being radioactive after death...
The rat consumes the poison and re enters the local environment to die. It's carcass is easy feed for local predators like snakes, magpies and crows, butcher birds etc etc.
Also the local cats and dogs. Maybe your neighbour's or yours.
Any animal that consumes the carcass consumes the high level of poisons as well. They die as a result.
Search secondary poisoning online for many references.
I know when my neighbour here used those poisons we didn't see any kookaburras or other carnivorous native birds until he left. They've all returned now he's gone.
Racumin is the only bait I'd advise. It is warfarin based. The treatment for poisoning for dogs is a simple vitamin k injection at the vet. Same for wild life.
It has much lower toxicity that the newer generation poisons. Safer all round.
Perhaps try rattraps... There are electrical kill traps available. My extensive experience with rats is that they are clever and learn to recognise and avoid danger after the first use of the traps.
The best preventative for vermin is to not have any food sources available around your home. Find out if they're feeding on scraps or pet food at your place. Restrict the food and they'll go elsewhere to eat and live.