Squirrels may look cute and cuddly from afar, but when they are up close, they tend to be very destructive animals. They will destroy your bird feeders, eating all the food, and they can destroy your gardens. In the winter, you may even catch some trying to move into your attic without paying rent. You can call an exterminator--a costly proposition that may not work--or you can try a home remedy against an unpleasant squirrel infestation.
Hot peppers such as cayenne and serrano are good squirrel deterrents. You can use them in several ways. You can purchase whole peppers at your local supermarket, bring them home and place them in your blender. Once the peppers are well mashed, you can take the mixture and place it in the area invested with the squirrels. You can also buy cayenne pepper in a jar from the spice section of your grocery store. Sprinkle the cayenne pepper in your birdseed, around your garden and in your attic to drive these pesky animals away.
Hair retains natural oils from the body and keep the scent of the donor. Next time you head to the barber shop or salon to get a hair cut ask if you can keep your clippings. They may even have clipping from past customers to donate to your cause. You may need to explain to your stylist so she does not look at your curiously the next time you visit. When you get home, take the clumps of hair you have collected and place them around the areas that are infested with squirrels. This works with pet hair as well--the squirrels will be repelled by the scents in the hair clumps.
Most people have a can of WD-40 lying around. It is also the equivalent of having squirrel-be-gone in a can. Spray it around the edge of your garden or around the vents in your attic, where the squirrels find their way in. You can use it in containers around your plants and flowers to drive away the squirrels because they can not stand the smell and will be repelled by it.
When handling the peppers, make sure that you slip a pair of rubber gloves on so that you don't get the juice from the peppers on your hands. Do not use WD-40 around your house and plants, if you have children or small animals around--you could poison them if they were to ingest the chemical.