Killing roaches with boric acid is one of the most effective ways to end a household roach infestation.
Boric acid is a mild poison that is sold in powdered form.
It is applied by squeezing the container to push the powder out through a nozzle at the top of the bottle.
This nozzle provides a precision tip that will allow you to precisely apply the roach poison where it is most needed.
Though boric acid is mild when compared to other roach poisons, it is toxic to children and pets.
When applying the poison, take care to apply it in a thin layer in areas that are not traveled by people and animals.
This includes under the refrigerator, under other major appliances, under sinks and in tight, dark spaces where roaches can easily hide.
Applying a thin layer is an important part of ending the roach infestation.
A thick layer can discourage roaches from trying to cross it, keeping them from coming into contact with the poison.
When this happens, the poisoned areas are simply avoided and the roaches are not poisoned.
Over time, this type of roach poison can lose its effectiveness.
If you have a bad roach infestation, apply a thin layer of boric acid to poison the roaches about every three to four months.
This will keep new bugs from establishing themselves in your home, and it will get rid of any remaining bugs.
If the boric acid isn't working, consider applying it to more areas, including corners and thresholds.