Cats shy away from spicy scents such as cloves and cayenne pepper. A mixture of three parts of dry mustard powder, two parts of cayenne pepper and five parts of flour is an effective cat repellent, according to North Dakotas University Extension expert horticulturalist, Ron Smith. Sprinkle this mixture wherever you need to discourage cats from digging or sleeping.
Learn to make friendly (but Effective) cat repellent with ingredients you have at home.This spray is safe to use on your furniture and all other indoor and outdoor items and plants. This spray is great for training your cat or repelling the neighborhood cats.