How To Kill Roaches With Borax

Roaches are probably a common nuisance that households across the world have to deal with. According to some studies roaches are the only living species that are likely to survive a nuclear attack, if it ever happens. This is because these creatures live in tiny creaks and crevices within your home which neither you nor common pesticides can penetrate. Roaches are also said to be able to survive for months on the glue behind an average sized postage stamp. This makes them quite hardy and difficult to eradicate.

The Problems with Hiring Professional Help

While there are professional pest control companies that can help you fight these insects; hiring them comes with its own share of problems. The entire process can be expensive and messy. The foul odor of the pesticide lingers for days, making your home unsuitable for staying in. You will probably have to move out for a few days while the professionals do their job. Pesticides used by professional companies are toxic and can be a reason for worry if you have infants, children, elderly people and pets living at home. Pesticides can also cause allergies in susceptible people. After the pest control is done, you will need to clean everything in the house to remove the toxic residue from all the surfaces to ensure you and your family remain safe. Not an easy task this!

How to Kill Roaches With Boric Acid

The best approach is to find a way of controlling the roaches menace yourself. Roach butter is a tried and tested method of successfully killing roaches the safe way. This is something anyone can do at home and is safe and effective. So go ahead and master the art of how to kill roaches with boric acid.

Ingredients Required

  • 50 grams or 0.10 lbs of flour.
  • 50 grams or 0.10 lbs of boric powder/acid.
  • 50 grams or 1.10 lbs of powdered sugar.
  • 50 grams or 1.10 lbs of butter.

Note: If you are unsure of the measure you can use 2 tbs of each ingredient or an equal ratio. Don’t substitute butter with cooking oil. Boric powder/acid can be bought at a pharmacy.


  1. Mix the powdered ingredients thoroughly.
  2. Add butter to the mix and knead into a stiff dough.
  3. Form pea sized balls of the dough and your bait is ready.

Place the boric powder mix bait on your kitchen counter, inside kitchen cabinets, on the kitchen floor, in the kitchen sink, in your bathrooms and anywhere else you find these creatures lurking. It is imperative that the bait is left around during the night, as it is then that roaches venture out from their dens in search of food.

Roaches get attracted to the smell of butter in the bait and gnaw at them. The sugar masks the taste of boric powder. Boric powder is lethal for roaches and they soon die after nibbling on the bait left around. The good thing about boric powder is that it is not really harmful to people and pets at home, as its toxicity level is very low. However, to be safe, remove the bait during the day when your children and pets are likely to be around.

Once you place the boric powder bait around your home you can expect to find dead roaches lying around your home every morning.

Tips for Complete Eradication of Roaches

Over a period of time the bait you leave around will kill all the roaches in your home. This is when you will think of removing the bait completely. The trouble is roaches will be back within a couple of weeks. Don’t let this fool you into believing the remedy was ineffective. For remember there will be cockroaches eggs waiting to hatch.

Each egg is said to contain around 15 tiny roaches. You do your math and calculate how fast these creatures will be multiplying right under your nose. So the trick is to repeat the eradication process every fortnight. This will ensure that all the newly hatched cockroaches also die.

Once the eradication is complete you can set out the bait every 3 months or so.

Prevent Future Roach Infestation

Roaches will always find a way into your home if you unknowingly provide them a safe haven. Here is what you can do to ensure they do not dwell in your home.

  • Keep your home clean, especially the kitchen counter, kitchen sink and the bathrooms.
  • Don’t leave food lying around. Make sure it is stored in tight containers.
  • Throw away the garbage each night.
  • Do the dishes at night, so roaches don’t get attracted to the smell of food and enter your home.
  • Seal entry points through which they are likely to enter.

Follow these simple steps and you will certainly be able to keep roaches from moving in with you.

10 comments… add one
  1. Veronica

    Does the acid boric attracts by itself roaches? Can i use peanut butter instead of sugar?

    1. Daniel Trejo

      I used p-butter and coffee grounds, they loved their last meal.

  2. Armando Garcia

    are you using equal amounts as stated in grams? or lbs of butter and sugar to the 50 grams of borax and flour


    1. passing by

      good question the grams and lb are not precise 50gm to 0.10 LB and then 50 grams to 1.1 LB

    2. Iris

      Agreed. The grams : pounds ratios don’t agree. ???

  3. Cherie

    Couldn’t I just get premade dough (ie: cookie or biscuit dough) and add the borax to it? Or does it have to be equal amounts?

  4. Cherie

    Thank you! My mother swore by borax to get rid of bugs, but when I tried it, was not effective..most likely because I was not adding bait to it. Makes sense to add something to attract them to it. Is boric acid also effective, or does it have to be the actual Borax brand?

    1. Karen

      But I thought that Borax IS the “bait” – in other words, the part of this mixture that would kill the roach. Please clear this up for me, anyone, because I’m getting more confused by the most by what should be a simple recipe. :O

      1. Karen

        OOPS – I should have said “…because I’m getting more confused by the MOMENT by what should be a simple recipe.” Sorry for the typo!

  5. Karen

    I’ve been having trouble getting the right ingredients, I guess, because I have yet to get the roaches to eat this. I think I’m getting the wrong ‘borax’ powder. I bought 20-Mule Team Borax laundry booster, which was the only “Borax” I could find. I went to so many stores – grocery stores, pharmacies, Home Depot, you name it – and this is all I could find. As for using ‘boric acid’ I would ask for it and get blank stares and only one helpful suggestion which was for buying this tiny bottle of liquid eyedrops for an exorbitant amount of money – and that had other ingredients which I’m pretty sure wouldn’t taste good to a roach. So help me out here, what kind of Borax specifically – because we have the laundry booster powder, multi-purpose cleaner, laundry booster AND multi-purpose cleaner, detergent booster, super washing soda,Sodium Borate (Borax) “Decahydrate”. I’m naming just some of what I found on and I want to buy the right kind – I’ve got to make it tasty for these guys or they’re sure to ignore it. And should the butter be “unsalted” or does it matter? Would any kind of flour work? And could you give me measurements that are typical for the U.S. – for instance, tablespoons or cup measurements? Would I actually need to mix up POUNDS of this stuff? I would think that it would get moldy or dried up before I could ever use that much! Please help – and thank you so much!! I’ve got my fingers crossed……………………….

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