All last spring and summer, I had a running battle with two or three cats that lived 2 houses down from me. These are things I tried to discourage them ... none worked:
Red pepper, vinegar, crushed mothballs, jalapeno juice and chopped up jalapenos, oh yes and the expensive pet store cat deterrent, and ant poison.
Since my desert rock front yard was involved, at the end of the summer, I tried spreading thorny branches of Texas Ebony, pyracantha and/or bougainvilla all over the place. Last November, the owners moved and I had relief for a few weeks and could rake up my yard and enjoy a nice yard.
The people who moved in have two cats, but they seem to do less damage and seem to stay out of my yard most of the time.
I see them occasionally, but for some reason they didn't gravitate ot my yard like the others.
Even if AZ had a hunting law to kill them, ya can't shoot in the city, so that wouldn't help.
It took me seven months to develop a real hatred for cats.
g
I wonder if coyote urine deters cats?
I have had many, many cats for many, many years, and only had a couple of times where the neighbors had problems, both of them really anal, neurotic people.
It is said that cats perversely like to torment people whom they sense don't like them. I have no idea whether that is true.
Didn't you know?
Those precious kitties have special rights that mere canines will never have.
Leash laws never apply to cats!
< /dripping sarcasm>