Homemade Cat Repellant. Take a few cotton balls and use an eye dropper to wet them with cinnamon, citronella, lemon, lemon grass, lavender, orange and rosemary oils. The vinegar can also be substituted for an essential oil such as citronella, lavender, peppermint or lemongrass (1 part oil to 3 parts water).
Citrus repellent and rosemary extract; Spray the homemade recipe in specified areas where you don’t want your cats to venture into. Plant it close to the area where cats are constantly causing problems.