I am glad this thread came back up...........considering all the other things we have done to kill rats.
I think most of our current problem is coming from the pair of falling down garages, both ours and the neighbors. We tried using instant mashed potatoes and bowls of water for the same effect.
As far as the poster that suggested coyote pee to ward off ground squirrels, lol they have clearly not lived with coyotes and ground squirrels! I have photos of the dogs and the coyotes peeing in the squirrel holes. Trust me, they squirrels do not care!
Add to the many things they like to destroy-anything rubber on your cars engine! And they have no worries about building their tunnels near people. I have 2 holes in this apt building complex courtyard! They are undermining carports, driveways and very important banks that keep the buildings from shifting. When you watch on the news homes falling in to the sea in CA from bluffs..........look for the maze of squirrel holes that helped the ground to become unstable. The squirrels do not cause the ocean to erode the bluff, but they sure do help it speed it up!
most urines ARE attractants I use fox pee and coyote pee and B'cat pee to ATTRACT predators during trapping season
