Roaches are probably some of the most loathsome creatures you could encounter, and when you find them scurrying around your home, they are definitely unwelcomed guests! This is when you really could do with some boric acid for roaches. Maybe you think it’s just one or two, but don’t be fooled – where there’s one, there’s got to be loads more somewhere close by. Within a very short space of time they can multiply and take over your living area if you continue to give them what they are looking for, namely food, water and shelter. The sooner you do something decisive to deal with the roaches the better. Thankfully boric acid powder is a highly effective substance which kills roaches and eliminates them from your environment once and for all.

Note: Advion is the only product I trust to work better than boric acid. Best of all,  you can use both of them for better results.

What is Boric Acid Made From?

Boric acid contains the natural element boron which is mined from mineral deposits in the ground. It is then chemically combined with water to form an inorganic, white powder called boric acid. This powder is readily available at hardware and grocery stores. It can be bought in generic form, or packaged as boric acid roach killer that comes in plastic bottles; some of which will have an applicator tip.  It comes ready to use and does not need to be mixed or diluted. It is an odorless substance and has no volatile solvents.

What are the Safety Risks and Precautions for Boric Acid?

Although boric acid is deadly toxic to cockroaches, it has a low toxicity to people or pets. In fact boron is used in a wide variety of household products such as laundry additives and toothpaste. However, it is not a good idea to get any of the boric acid insecticide powder in your mouth, nose or eyes, so please use it with caution. You might need to use latex gloves or a dust mask when you are working with the powder.

Don’t want to deal with powder? Use Advion gel instead.

How Does Boric Acid Kill Roaches?

As soon as the boric acid powder touches the body of the roach, the tiny particles stick onto it and some of it gets absorbed through the roach’s greasy outer body covering. As the roach preens and cleans its body it will also ingest some of the powder. The mineral and crystalline qualities of the boric acid then begin to damage the exoskeleton of the roach from the outside, and cause dehydration from the inside. Once they have been affected by the boric acid, cockroaches will start to behave abnormally in that they will come out into the daylight in exposed areas, rather than keeping to darkened places and staying against the walls.

How Long Will it Take to Get Rid of Roaches With Boric Acid?

After an adult roach has come into contact with boric acid it would take approximately seventy-two hours for it to die. Nymphs and juveniles would usually die in a shorter time, within about twenty-four to forty-eight hours. The roaches will return to their nesting areas and carry the powder with them thus infecting others. Roaches also tend to be cannibalistic, so they will feed on their dead, thus spreading the toxic effect further. Boric acid is deadly for all types, sizes and ages of cockroach, regardless of the species with which you dealing.  This is what makes boric acid for roaches one of the most effective methods of elimination.

How do you use Boric Acid Correctly for Killing Roaches?

Once you have obtained your supply of boric acid, there are a few do’s and don’ts to remember so that you can get the best results:

  • DO apply it sparingly: The great thing about boric acid is that a little goes a long way. Just a fine layer of powder sprayed over your infected surfaces is enough to have a lethal effect on the roaches. In order to apply a barely visible film of powder you could use a duster bulb or bellows, or you could simply shake the container (with closed lid) and then remove the lid and gently puff the dust over the area you wish to cover.
  • DON’T sprinkle large piles of powder: If you deposit the boric acid too generously, the roaches are likely to walk around it and thus avoid getting the toxin into their system. Sprinkling the powder with a spoon tends to result in a layer that is too heavy, so rather use the puffing method described above.
  • DO apply it in the right places: Roaches tend to prefer secluded nooks and crannies which are warm and close to food and water sources. They especially seem to gravitate towards kitchens and bathrooms, as well as other areas of the home. When applying the boric acid for roaches, make sure that you cover key areas around, under and behind stoves, refrigerators and dishwashers. Pay particular attention to plumbing pipes under the sink or behind the commode, as well as in the shower and behind the washing machine. If you are aware of a hollow space behind kitchen or bathroom cabinets, you can use a syringe to inject powder through cracks so that this kind of hiding place can also be effectively reached with the boric acid.
  • DON’T let the powder touch your kitchen counters: Be careful not to allow any of the boric acid powder to settle onto your kitchen counter tops or any surfaces where food is prepared. Wipe these areas with a damp cloth to ensure that they are clean.
  • DO use a dual approach: Besides using boric acid for roaches, it can be a good idea to use a dual approach with another cockroach control product. An effective combination would be to use containerized cockroach bait like Advion, as well as the boric acid powder.

Is There an Alternative Method for Using Boric Acid for Roaches?

The method above uses the boric acid powder as it is, dusting it over affected areas, but there is another method whereby you can use the powder to make some cockroach bait paste or balls. Simply combine two parts of boric acid powder with one part of flour and a little syrup (or sugar and water). Add enough of the sweetener to make a fairly thick paste which can be smeared in all the hard to get at places such as behind drawers, under the sink, and around outlet pipes. Alternatively, you could roll the paste into little balls and allow them to dry out overnight before placing them strategically around your home. This mixture can also be successfully kept in your freezer for future use or to share with friends and neighbors.

Boric acid for roaches is one of the simplest and most effective approaches when it comes to eliminating them for good. All you need to do is make the powder or bait easily accessible for the roaches, and they will do the rest. As the cockroaches scurry through the powdery dust, or nibble on the bait, they will begin to disintegrate from the outside and inside. In a short space of time you will notice a marked decrease in your resident roach population until the happy day when you realize that your home is completely roach free!