The answer to 'natural rat repellent' is that there are several effective natural methods to deter rats from your home. Some of the most recommended natural rat repellents include using peppermint oil, ammonia-soaked rags, cayenne pepper, and castor oil. These work by creating unpleasant smells and sensations that rats find offensive, causing them to avoid the treated areas.
To use these natural repellents, apply them around the perimeter of your home, in entry points like vents and crawl spaces, and in areas where you've seen rat activity. Reapply the repellents every 2-3 weeks, or after heavy rain or lawn watering. Combining multiple natural methods can provide even better protection against rats.