What Bugs Does Borax Kill?

11 Borax Uses for Around the Home Bob Vila Bob Vila


Borax, also known as sodium borate, is a naturally occurring mineral that has been used for centuries as a cleaning agent and insecticide. It is a white powder that is commonly found in laundry detergents, hand soaps, and other household cleaning products. In this article, we will discuss the bugs that borax can effectively kill.


Ants are one of the most common household pests, and borax is an effective way to get rid of them. Borax works by disrupting the ant’s digestive system, causing it to die of starvation. To use borax for ants, mix equal parts borax and sugar and place the mixture near ant trails or where ants are entering your home.


Cockroaches are another common household pest that can be effectively eliminated with borax. Mix borax with powdered sugar and sprinkle it in areas where cockroaches are known to frequent, such as under sinks and in cabinets. The sugar will attract the cockroaches, and the borax will kill them.


Silverfish are small, wingless insects that are often found in damp areas such as bathrooms and basements. Borax can be used to kill silverfish by sprinkling it in areas where they are known to frequent. The borax will dehydrate the silverfish, causing them to die.

Bed Bugs

Bed bugs have become a major problem in recent years, and borax can be used to kill them. However, it is important to note that borax is not effective as a standalone treatment for bed bugs. It should be used in conjunction with other treatments, such as vacuuming and steam cleaning. Sprinkle borax on your mattress and in the crevices of your bed frame, and leave it for a few days before vacuuming it up.


Spiders are not technically insects, but borax can be used to kill them as well. Mix borax with water to create a paste and apply it to areas where spiders are known to crawl, such as corners of rooms and window sills. The borax will dehydrate the spiders, causing them to die.


In conclusion, borax is a versatile and effective insecticide that can be used to eliminate a wide range of household pests. However, it should be used with caution and kept away from children and pets. If you are unsure about how to use borax safely and effectively, consult a professional pest control company.