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Borax is a white crystalline powder that easily dissolves when it comes in contact with water. Borax destroys fleas and flea larvae by sucking the moisture from their bodies, which results in dehydration and death.
To use borax as a natural flea treatment, clean your house thoroughly using a vacuum that has a high efficiency particulate air (HEPA) filter. Use long, slow strokes, going over the same area two or three times. Scatter borax, or borax mixed with salt and diatomaceous earth, over your upholstery and let it sit for 24 hours. Do not allow people or pets on the furniture during this time--these substances should not be inhaled. Vacuum again thoroughly. Repeat as necessary. -
For people with respiratory sensitivities, or those who just prefer to use a spray treatment on their upholstery, there is DustMite. This manufacturer-guaranteed product comes in a powder form, but you add hot water to create a liquid that is sprayed. It also eliminates dust mites, ants and ticks.
Follow the directions for vacuuming in the borax section of this article. Apply the mixture to your upholstery with a spray bottle and then let it completely dry. If you have access to a steam cleaner (wet extraction machine), you can substitute the DustMite mixture for the regular liquid cleaner. DustMite will not damage upholstery that is light in color, but it may damage dark colors. Test the solution on the underside of a cushion to be safe. There is no added fragrance or perfume and the pH is neutral. - Citrus peel extract, d-Limonene, is used to kill fleas at all life stages. It can be found in Citri Solve, which is available at most health food stores and food cooperatives. Follow the vacuuming directions above, then mix up to a 1/4 cup in a gallon of water and spray it on your upholstery. Do not use citrus peel extract if you have cats or asthma.
