re: Stray Cat Deterrents?

Unfortunately, i have extensive experience with stray cats as my neighbor is the cat lady who owns a "colony" allowed by my parish. They used to shite in my garden all the time and i've gone through just about every deterrent method available (cayenne pepper, high pitched noise, automatic sprinkler, moth balls, etc). The only thing that remotely worked was the sprinkler but because I couldn't cover my entire garden with these and because the sensors don't work that well at night or with other moving things (plants blowing in the wind) it was really useless too.

The ONLY thing in my opinion that will deter a cat is to trap it and remove it. Most other solutions are just stop gaps until the cat gets smart to it and moves to another spot in the garden.