Did you know a fun fact about cockroaches? This species’ ancestors are on the earth for some 300-350 million years, which originated during the Carboniferous period. Today, about 30 out of 4600 identified species are familiar with human habitats, causing problems in pest control.

Cockroaches are probably the most common household insects, producing thousands of offspring all over the year. They seek comfort in moisture, dark shelters, and certainly food resources.
These repulsive insects can crawl on a dumpster and fly back to your uncovered dishes, contaminating the food and utensils. According to a World Health Organization publication, roaches carry organisms responsible for diarrhea, dysentery, cholera, leprosy, plague, typhoid, and other viral diseases.

In no way should you entertain these kinds of nuances at your home. You can take charge of pest control with some basic home remedies like boric acid. Don’t worry; it’s a weak, monobasic Lewis acid and has no harmful effect like other strong acids.

Boric acid and borate salt was first registered as pesticides in 1948 in the US. Boric acid powder and gel have been proven to be safe and effective in controlling roaches at home.

Where can I find boric acid? You might wonder. Or how does boric acid kill roaches? Please stick with us till the end of this article, and everything will be crystal clear.


Boric Acid on Roaches


What Is Boric Acid?

Boric acid is a kind of insecticide formed as a byproduct of hydrolysis of boron trihalides and diborane. It is an odorless and colorless chemical compound that dissolves in water.

Despite what the name suggests, boric acid comes in powder form. It is naturally available in plants and almost all kinds of fruits like apples, bananas, almonds, raisins, peanuts, etc.

This powder is readily available in the laundry detergent and household cleaning sections of hardware stores or grocery stores. It is a multipurpose product used in indoor and outdoor places like houses, hospitals, commercial complexes, and sewage systems. Boric acid is widely used as a pesticide to kill spiders, roaches, algae, fungi, and weeds.


How Does Boric Acid Work on Roaches?

Boric acid means fatal death to roaches, but for humans, it’s not that dangerous. According to the National Pesticide Information Center, boric acid is low in toxicity in minor skin contact cases. But if the powder is accidentally eaten or breathed in, it can cause nausea, vomiting, stomach aches, and diarrhea. Takeaway? Always read the product labels carefully and follow the safety precautions.

When a cockroach crawls through a treatment area, the boric acid powder adheres all over its body. During preening itself, this powder is ingested. The tiny particles also get absorbed in its body. Eventually, the chemical attacks the roaches nervous and digestive system, leading to death.

Doesn’t Affect the Eggs

Boric acid is not 100% effective in treating roach eggs. Roaches lay eggs inside an egg case called ootheca, which is covered by a protective protein layer. You will mostly find these oothecae in the darkest corners of your kitchen, basement, or any secluded part of your house. The best way to kill roach eggs is to smash or squish them or spray pesticides in the form of an aerosol.

Need Proper Placement

You should be aware of the correct application method of boric acid to avoid any unwanted hazards. As it is a powder, applying abruptly everywhere will create a mess in your home. You should use the right amount. And most importantly, keep your children and pets at a safe distance. Clean the surface immediately after the treatment process is done.

Works Best with Exclusion

Just killing the pests once inside your home is not enough. These roaches will find their way back again. So you need to take the correct exclusion methods to block the possible entrances. Don’t leave food crumbs open on the countertop or store empty cardboard boxes that might attract the roaches. Always keep the sewage clean and caulk any hole around your bathtub or kitchen sink.

Expertise is Necessary

Yes, the boric acid treatment will work provided you know where to apply. First, you have to track the trails and find out the spots that roaches find convenient and habitable. Often it is the dark moisty nooks in the bathroom, the clutter of food in your sink, or behind the cabinets. And not just the big bugs. Be on the lookout for the roach eggs in any dingy corner.


Advantages of Using Boric Acid on Cockroaches

  • No Resistance: Boric acid has been used as a pesticide to kill roaches for decades now. And yet, there is no resistance power noticed as such.
  • Non-repellent: Boric acid is a non-repellent odorless compound. So cockroaches don’t avoid the area where the powder is spread.
  • Retains Potency: The boric acid powder doesn’t lose potency for an indefinite period, as long as the dust is kept dry.


Treatment Application Tips

  • Always wear a mask and gloves when you are applying the powder.
  • Don’t overapply. Make sure the roaches don’t see it and leave the place.
  • You may consider applying the powder at night and leave it overnight for the best result.
  • Try to switch between a variety of products to maintain effectiveness.
  • Thoroughly vacuum up the loose dust and wipe the place after the treatment is done.



So we hope this article has touched every little aspect of a pest control drive at home using boric acid for roaches. Now you know where to find these insects, how to apply the powder, and the safeguards you should take to avoid any reaction.

But if the situation is out of your hand, it’s always suggested that you take the help of professional pest control services. Bug Guys Pest Control is the most trusted and top-rated exterminator, with 20,000 happy customers if you are anywhere near Coachella valley. Out of many services we offer, cockroach control is one of our strong suits. We use powerful pesticides and aim at giving you a cockroach-free home. Contact us today and request your free estimate.