Quick solutions to keep cats out of your yard: Scatter fresh orange and lemon peels or spray with citrus-scented fragrances. Coffee grounds, vinegar, pipe tobacco, or oil of lavender, lemongrass, citronella, or eucalyptus also deter cats. Plant the herb rue to repel cats, or sprinkle dried rue over the garden.

10 ways to keep cats out of your yard..

How do you keep cats out of your yard? You may want to repel cats to protect birds. You may want to keep your cats and other pets away from wandering cats. Or, you may want to keep cats from defecating in your yard so you don’t encounter their poop while gardening, mowing, or simply walking around. Cat feces can contain bacteria, viruses, and parasites that can infect humans and pets.

Cats are unpredictable, so there are few sure-fire cat repellents.

Feral cats are not the problem, humans are! (Huffington Post)

Humans hate to take responsibility for our actions especially when it comes to the fallout of those actions surrounding domesticated companion animals. In the case of feral cats, this is doubly so. Humans domesticated the cat, humans abandon their cats, and humans fail to spay and neuter their cats. And, when a cat is abandoned and not fixed they populate ..amazing I know but true. Then, humans blame the cats for their predicament.  More

Top Ten Most Common Problems Caused by Stray Cats

1) Fear and aggression towards humans