Cat deterrent? Who needs to deter cats? I've lived in places with gardens and have never found cats to be any problem at all. Dogs are a problem! Cats have the decency to bury their droppings in soil, thus providing some handy fertilizer. This is a problem? Not for me. Dogs drop it everywhere and anywhere in plain sight. That's a problem. Dogs are far more dangerous and destructive (some of them). Dogs are noisier (aside from the odd cat fight at night). Dogs are pestier.Man, I could go on forever. I have never complained about neighboring cats, and I think that people who do have WAY too much time on their hands...!
Now that I've pissed off the cat-haters and dog lovers, I will go and lie in a nice sunbeam and regard you all with the bored ennui and lofty disdain typical of a sophisticated feline, nature's fairest creature. :-)
Oh, and if you really want to keep cats irrevocably off your property...pave it over with asphalt, spread noxious chemicals around, and saturate it with radioactive material. Either that, or spread pig manure everywhere. Cats are smart and have good taste. They will not go near the place. The pig manure method, however, will attract every dog for miles around...
- LH