Borax can Kill Fleas in Your Home

Written by April Reinhardt (last updated July 26, 2008)


When we think of fleas, most likely we think of pet animals, such as cats or dogs, as hosts. Yet people who do not own pets can have flea infestations of their homes. Fleas are small, wingless insects that feed on the blood of their host, so they are classified as parasites. The bubonic plague and typhus was transmitted between rodents and humans by fleas carrying bacteria, making them not only an annoying parasite, but a transmitter of fatal disease. If left unchecked, a sighting of a few fleas can multiply into a dangerous infestation in a matter of a few months.

Flea eggs left on a host fall off and accumulate in cars, rugs, beds, clothing, furniture, and just about anywhere or anything a host travels or uses. The eggs hatch in about two weeks as larvae, and living in bedding and carpets for up to seven months before transforming into the next stage of legless pupae. The pupae may remain dormant until conditions are right to morph into an adult flea, and sometimes that dormant stage can last over a year. Little wonder than many generations of fleas will accumulate within a house in just a few months and, within a year's time, a home can become utterly infested.

If you have fleas in your home, one of the best ways to kill them is with borax. Made by the Dial Corporation, 20 Mule Team Borax has been manufactured for over 100 years, and has many uses beyond the laundry booster for which it was originally intended. Many people have discovered one of those uses is as a pesticide to kill fleas. Not to be confused with boric acid, 20 Mule Team Borax is borax decahydrate, also known as sodium borate decahydrate and sodium tetraborate decahydrate, and contains a portion of boric acid. When used as a flea pesticide, 20 Mule Team Borax breaks down the cell wall of the flea, killing it instantly and over time. Follow these tips and guidelines to use borax to kill fleas in your home:

  • In early spring, sprinkle borax all over the house, front porch, and yard. Use a shaker jar fashioned with a canning jar and a lid punched with holes. Fill the jar with borax and sprinkle all carpeting.
  • Thoroughly vacuum the entire house, throw away the vacuum bag, and then sprinkle the house again a few days later.
  • Make sure that you treat the entire house, including furniture, behind appliances and toilets, carpeting, and even the front porch. Vacuum every few days, making sure you throw out the vacuum bag each time.

Wash all bedding, throw rugs, curtains, and any other removable fabrics in hot water and borax. Dry those items in your dryer on high heat, if possible. Retreat your entire home every few weeks, repeating the steps above. Continue the regiment over a course of two years, and you should never have a flea problem again.

Author Bio

April Reinhardt

An admin­istrator for a mutual fund man­age­ment firm, April deals with the writ­ten word daily. She loves to write and plans to author a memoir in the near future. April attend­ed More­head State Uni­ver­sity to pursue a BA degree in Ele­men­tary Edu­ca­tion. ...


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What is 3 + 7?

2016-11-14 00:11:52


I will try to use this thank you, I hope it works, Can I put Borax on my body, I have fleas on my body and I have tried every thing. nothing works.
its been 6 months now. I am loosing my mind.