Is Borax Good for Killing Termites?

April 10, 2016 | Termite Product Reviews

borax for killing termites

When it comes to DIY pest control methods, a little research always helps to determine which ones are most effective. Termites are among the most insidious pests for any household and they can be expensive to remove.

Is Borax Good for Killing Termites?

Once ingested, Borax causes death to within 3-5 days. The substance is also abrasive to the exoskeleton of termites, which causes severe dehydration prior to death. This prevents them from doing any more damage even before they die.

  • Ease of Usage

Borax can be easily injected into a termite colony (drywood variety). In other cases, liquid Borate solutions can be sprayed onto pressure treated wood in order to expose more termites and eliminate as many as possible. This eliminates the need for professional assistance.

  • All Naturel and Non-Toxic

People are often hesitant to use strong chemicals for pest control purposes, unless they absolutely have to. Borax is a natural ingredient that does not harm people and animals residing in the house. Even repeated usage of this substance does not pose any health threat.

  • Availability

You can buy Borax in almost any hardware store, supermarket, or pharmacy. This is easily accessible whenever you see the threat of termites or a recurrence of infestation.

  • Affordable

Borax is perhaps the most affordable termite treatment available anywhere. Some professional treatments can go from a few hundred to a couple of thousand dollars, depending on the severity of the infestation.


  • Efficacy

Borax in powder and/or liquid form can only penetrate wood to a certain extent. This means the innermost part of the wood may not be protected and remains vulnerable to termites. Another factor that affects efficacy is repeated exposure to soaking rains. It also does not work too well on soil treatments.

  • Potential for Recurrence

Since Borax does not seep into wood too well, there is a very good chance of the problem recurring at some point. It can provide, at best, a temporary solution to a serious problem.


Borax, can be used effectively in conjunction with other types of termite treatment. A number of choices are available:

  • Heat and Cold Treatment- This is especially advisable for larger homes or offices. It requires getting rid of certain things in the vicinity (temporarily) until the last termite has been exterminated.
  • Liquid Nitrogen Spot Treatment- This uses extreme cold in certain parts of the house where the termites thrive. When used together with Borax, it allows for better coverage and more effective/faster eradication. This can only be done by professionals since liquid nitrogen can be precarious to handle.
  • Orange Oil Treatment- This can be applied by professionals as well as homeowners to any and all parts of the house affected by termites. This is also all natural and non-toxic, and can be used in addition to Borax. When using orange oil treatment, be sure to apply directly on the affected space as well as the surrounding area, for best results.

When Should You Call a Professional?

Certain termite problems can be dealt with by homeowners themselves. However, certain conditions, e.g. when the pests start eating the foundation, would warrant calling professionals in order to deal with the problem swiftly.

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