Have tried rat trapping but find the rats really clever, certainly the older ones. They are able to by pass all sorts of my booby traps.
Had a rat job in a kitchen, no real idea how they were getting on to the work surface, but always some droppings, eaten fruit etc.
Put 6 spring traps out baited with peanut butter up against wall/floor junctions and a camera.
The rats were climbing up the back of washing machine via a hole (not seen) and climbing up and on to the kitchen surface with the 1" gap betwwen to top od machine and kitchen top. Rats dodged all traps, took the fruit, cr