Does Mint keep away rats?
Using Mint to Repel Rats
Although mint is a pleasant aroma to most humans, rats shy away from it and other strong scents, such as ammonia and animal urine. Soak rags or cotton balls with a few drops of essential peppermint oil and place them in areas where you have seen or suspect rats. Does mint plants keep rats away? Peppermint has a pleasant aroma to most humans. However, rats dislike the smell.