Name that poison

Got it! Eradibait!
But hubby seems to remember it not working because our rats then wouldn't touch the stuff.

Anyone have any success with it?
Asking for my sister who has a problem with them at the mo, and doesn't want to use the anticoagulant stuff for fear of secondary poisoning of neighbourhood cats.

I seem to remember we ended up using fenn traps, but I know she won't fancy that option.

Thanks all. Thankfully not my problem this time.
Sister has weighed up the options and decided to get the council in and let them deal with it.
She doesn't have chooks, but suspects rats have come in from nearby garden that until very recently did have a hen run.
Seeing loads of rats including babies, even seeing them through the day.
Think, under the circumstances, probably the right decision.