Here is my post from another thread on what did and didn't work for me. also, the bucket traps did not catch anything for me..
<<<<<I think I won! I have not seen or heard any Rat activity in a couple days. Never did catch any in snap traps, they would eat the bate, and trip it without getting caught! but for a couple of days now, nothing has even touched them. No bait eaten or anything.
I had only had the snap traps in the garage, so the ducks couldn't access them. I had tried D con first down in the holes, and then stuffed the holes with steel wool as people had suggested. no luck for mor than a week. So as everyone suggested on here, I ordered the Just One Bite. i put pieces of that down the holes and the steel wool, (covered with bricks so the duckies couldn't access) and put some in the center of a pvc pipe and set it along the bottom of the house outside. same activity for the first couple days and then Nothing, no more signs of the little stinkers! I hope this can help someone else! good luck!>>>>>