Happy Birthday @sourland !!!!
"Contains Diphacinone, an extremely effective anticoagulant rodenticide."
Do you have Ramik there? It isn't a poison but an anticoagulant. I had great success when the rats in the barn got wise to the traps after the first 4 met their end.We couldn't lure the rat to take the bait of the fancy, expensive rat trap we bought so we did resort to poison.
"Contains Diphacinone, an extremely effective anticoagulant rodenticide."