Stop a cat from deficating in a garden
by Tracey
(Abington)
How do you stop stray cats from deficating in a common garden area?
Answer by Kate
Difficult.
There are products available that you can sprinkle around which is supposed to deter them. You can also try spraying lemon juice and water as cats don't like citrus smells.
Other than that you can try and resort to scare tactics. Again i belive their are machines on the market designed to make a loud noise to frighten cats off. Or you can hang shiny mobiles around (my neighbour uses old CD's around the base of her bushes).
A part from that i'm nor sure there is much else you can do.