One of the many natural methods for humans to repel fleas is to include more garlic in the diet. Because fleas dislike garlic's taste, eating it repels them because it is present in human blood when they try to bite.
Substances that repel fleas include lavender, lemon balm, catnip, citronella and peppermint. Growing these plants near windows and doors or keeping them as houseplants repels fleas, mosquitoes and other biting insects. Essential oils from these plants are also effective insect repellents.
Eucalyptus, citrus fruits such as oranges or limes, and Borax can be used to deter fleas. Vinegar can also repel fleas when added to a pet's drinking water.
3M Ultrathon Insect Repellent is a popular and effective product designed to protect humans from mosquitoes, ticks and other insects, including fleas. 3M initially created the product in the 1980s after the U.S. military asked the company to develop better insect protection.
Natural flea repellents include black walnut supplements, herbal shampoos and diatomaceous earth, according to PETA. One natural flea killer is powdered pyrethrum, as stated by Dr. Jeffrey Levy.
Apple cider vinegar and lemons are good ingredients for a homemade flea repellent. Make a solution with equal parts apple cider vinegar and water, or create a mixture by boiling sliced lemons and water. Then, fill a spray bottle with the homemade solution.
To make a homemade flea repellent, use a combination of vinegar or lemon and water or a mixture of essential oils such as lavender, neem, eucalyptus and lemon in water. Pour the liquid in a spray bottle and spray it onto the pet.
Fleas are repelled by the taste, smell and acidity of vinegar. However, vinegar only repels the insects, it does not kill them. Pet owners often give their pets vinegar as a dietary supplement or use it as a spray to help ward off the pests.
Cayenne pepper, white vinegar, ammonia and citrus all emit strong odors that dogs dislike, making them good dog repellents. For outdoor use, sonic devices and motion-activated sprinklers can scare away wandering dogs.
There are three primary types of commercial dog repellents, including scented repellents, Liquid Fence and ultrasonic repellents Owners also have the option to make all-natural scented repellents at home.