I guess that would work. I think I'd just be afraid it would seep into the soil or something. I've never used rat poison for anything, or poison whatsoever, but I would be afraid of the after effects, personally.
This is what we do.
I see nothing wrong with shooting rats. my neighbor shoots squirrels. good target practice. Before someone gets all warm and fuzzy about shooting squirrels ----will have to share----on two occasions I had almost tragic events with to cars because of squirrels. My little white sports car---the engine smoked up because some squirrel decided it was a good place to hid nuts, so almost an engine fire. And our big truck its breaks failed because some squirrel chewed the break lines, good thing I was able to stop the truck before I got to the street------had to pay for a tow truck $$$ to get it to the mechanic to fix the break lines $$$$$.
Our biology dept has us kill the animals rather than upset other area balances or create starvation and disease conditions. Use a silencer. I have a gamo whisper in 22 cal.
My dad was a truck broker and most of what his drivers hauled was grass seed.
Not enough terriers around to make a dent in their population unfortunately.
When I get there, I fly into Eugene, rent a car and drive west straight to the coastline, then head north and first stop is Newport.
