Thank you for your interest, Keri, and concern. I have looked up the product again where the manufacturers says the cat repellent contains Allyl Isothiocyanate from essential oil of mustard and capsaicin. It repels by odor and taste, and the pleasant lemon scent is not offensive to humans.
5. “Havahart’s Cat Repellent” uses capsaicin pepper and oil of mustard as its active ingredients. It repels by both taste and odor and has a lemon scent.
for Dogs & Cats – Tick + Flea & Insect Repellant with Lemongrass.
Two Methods:Repelling the CatMaking a Lemon ScarecrowCommunity Q&A
How to Make Your Own Natural Cat Repellent (spray a mixture of lemon dishwashing soap, castor oil, and water around your yard and house) Temp finally got above freezing, and the smell about knocked me over! Ugh. Gotta do this soon.I agree with the poster who said to skip mothballs. They are terribly poisonous to everything, including people, and the stench from them is as bad as or worse than the cat urine. I have purchased a cat repellant from Walmart that worked quite well. It also had a smell, but not obnoxious, and it had to be replaced every time it rained, but it worked. It kept my own cats from pooping on the front lawn. You might also try citrus peels, as those are not too unsightly and won't be a horrible smell. I kept stray cats from spraying the front of my house by splashing lemon scented Mr. Clean over the urine spots. This would work on fence posts, or tree trunks.Cat Repellant Spray from Jillee--drops of lavender, lemon, wild orange and essential oils in water. interesting. wonder if it would work for my cats.Orange and lemon peels are a natural repellent. After they are very dry, their effectiveness may be reduced. I use them indoors to keep the cat off countertops. I've read that it works in the garden too.You can also buy cat repellant at hardware and likely, pet stores. It works as well, but has to be replaced after every rain. Do not use things like mothballs. They are poisonous to everything, and smell worse than the cat smell. If the cats are spraying their scent on the house (which they may be doing, as that is much stinkier than just pooping in your flower beds) try splashing some lemon scented cleaner on the spots. I did that one winter, when it was far too cold (-20) to be washing the spots, and it seemed to deter the cats and nullify the odor. You might try orange or grapefruit peels as well, as I think it is the citrus smell that deters them.Use citrus oils including lemon, orange and lime essential oils to repel cats. These oils are extracted from the peels of the citrus fruits and have a strong, slightly bitter scent. Cats dislike these oils, which many natural cat repellents contain. Soak cotton balls in these oils and place them in the locations you want your cat to avoid. You can make a solution of equal parts lemon and orange oils and mix it with three parts water. Shake the mixture and spray the solution on plants, fabrics, walls or other surfaces. You can also rub citrus peels directly on these surfaces to distribute their natural oils or grind them up and sprinkle them around plants to deter cats.