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Does Salt or Epsom Salt Kill Cockroaches?

Does Salt or Epsom Salt Kill Cockroaches?

Cockroaches tend to be drawn to the most repulsive substances, such as decaying garbage and animal feces. The presence of bacteria and enzymes in the cockroach’s stomach makes it possible for them to digest anything. Most insects are killed by salt because it dries them out. Does salt also kill cockroaches?

Table salt can only kill cockroaches if you drown them in it. A few drops of salt sprinkled on the cockroaches will not kill them. The cockroach has a strong exoskeleton, making it difficult to be harmed by salt.

In our homes, cockroaches are unwelcome visitors. Just because table salt won’t kill cockroaches doesn’t mean getting rid of them will be impossible. Continue reading to learn how to repel and kill cockroaches. We’ve even suggested a specific type of salt that you can use to kill cockroaches.

Does Salt Attract or Repel Roaches?

Salt does not attract roaches; instead, it repels them completely. Salt contains ammonium chloride and ammonium nitrate, which the cockroaches can’t stand. However, while salt does not kill cockroaches, you can use it to repel them away from your home. 

Food industries in the past liquefied salt and soaked packaging materials used to pack processed food items in it. This approach aided industries in ensuring that cockroaches did not invade processed items packed in those materials.

You can use salt to keep cockroaches away from specific areas in your home. To avoid food contamination, sprinkle salt in locations where cockroaches frequent, such as kitchen floors and counters. Fortunately, the salt will melt in a few minutes, and you will not notice it.

Cockroaches will not be able to nest in your car, attic, or toolshed if you sprinkle some salt. The salt is too gritty for any cockroach to walk on. Salt is an inexpensive way of discouraging cockroaches from infesting several areas around your home.

One thing to keep in mind is that salt isn’t very efficient as a cockroach repellent. If you want to effectively get rid of cockroaches in your home, you’ll need to combine it with other treatments.

Do Cockroaches Eat Salt?

Cockroaches don’t eat salt because it isn’t the type of food that appeals to their taste buds. The cockroaches will not be harmed if they eat salty foods, but they will be affected if they consume plain salt. Cockroaches cannot swallow salt grains because they are large and hard to swallow.

It should come as no surprise that cockroaches chew their food. As a result, they are incredibly picky about the flavor and texture of their meals. Salt is not one of their favorite tastes and, in most cases, repels them.

If your house has a heavy cockroach infestation dipping something like a toothbrush in salt will keep cockroaches away from it. Read more on that cockroach on toothbrush paste. You can also sprinkle salt around the drainage system, not too much though to avoid blockage.

Drawers, cabinets, behind the refrigerator, television, beneath sinks, and shelves are excellent places to sprinkle salt to keep cockroaches away. Sprinkle it all over the floors, whether tiled, carpeted, or wood.

Are Roaches Attracted To Salt?

Salt is a common cockroach repellant due to its taste and other factors. Cockroaches have a keen sense of smell and can detect food almost everywhere.

On the other hand, salt does not have a strong smell, making it unappealing to cockroaches. The cockroaches do not like the flavor of salt; thus, it will keep them away.

Another reason roaches aren’t drawn to salt is because it quickly dehydrates their bodies.

Does Epsom Salt Kill Cockroaches?

Cockroaches will not be killed by ordinary table salt, but Epsom salt will. Epsom salt contains magnesium sulfate, which disrupts a cockroach’s biological system and prevents it from feeding. Magnesium sulfate is highly toxic to cockroaches. 

Simply dissolve 4 ounces of Epsom Salt in 150 ml of water and pour into a spray bottle. Spray the cockroaches and any other areas where they congregate.

If you can mix the solution with bait, you’ll be able to draw cockroaches to it more quickly. The bait also makes it easier for the cockroaches to consume it. Peppermint, cloves, garlic, cinnamon, and coffee grounds are some of the baits you can use with Epsom salt.

It will not only get rid of cockroaches, but it will also assist you in getting rid of other pests. Instead of using the spray bottle, some people purchase Bug a Salt Fly Gun. Though this method is a little risky, you must use it cautiously to avoid harming people or pets nearby.

What Kills Cockroaches Overnight?

No one likes to see cockroaches running around their home. As a result, most people are constantly looking for solutions to get rid of them. Here are a few quick and easy techniques to get rid of cockroaches overnight.

  1. Diatomaceous Earth: Diatomaceous earth is a non-toxic way of killing cockroaches overnight. It is highly abrasive due to its composition of broken fossils. The earth destroys the waxy covering on the cockroach’s exoskeleton, killing it swiftly. Roaches will return to their nests with the substance, killing other bugs.
  2. Borax: Because Borax Powder is an acid, it destroys the roaches’ stomachs when they eat it. Combine it with something sweet and place it in roach-infested areas. The cockroaches’ exoskeleton will get damaged if they obtain enough borax on their bodies. The roaches will become dehydrated and eventually die.
  3. Insecticidal sprays: You can do it yourself or hire a professional for this method. These sprays will repel them and eliminate the roaches overnight in any case. To avoid staining the surfaces, use high-quality, odorless, water-based sprays.  Make sure to wear protective clothing as well.

Does Baking Soda Kill Cockroaches?

One of the strategies for killing cockroaches quickly is to use baking soda. You’ll have a highly effective cockroach killer when you combine baking soda with sugar. Cockroaches are drawn to the smell of sugar but are not attracted to baking powder. The sugar is used as bait, and the baking soda is used to kill them.

The baking powder expands in the cockroaches’ guts after they eat it. If they drink any water, it will put them under pressure. Their exoskeleton will be unable to expand, resulting in their death. It’s hard to expand because the exoskeleton is not formed of flesh and tissue.

The inability of the cockroach’s exoskeleton to expand is what will protect it from external harm. On the other hand, damage from within will result in a different outcome. When the baking soda swells within the cockroach, it comes into contact with a rigid shell, crushing the organs.

It’s worth mentioning, though, that this procedure only works if the baking soda is fresh and powdered. If you mix it with your food, it will become ineffective, and the cockroaches will happily consume it without harm.

Does Bleach Kill Cockroaches?

Unless you aim to drown every cockroach, the milder bleach used for laundry cannot kill cockroaches. It has a strong odor that does not attract cockroaches in the least. The best application for bleach is that it repels cockroaches exceptionally well but does not kill them.

Chlorine bleach, on the other hand, is capable of killing cockroaches. Any bleach that contains chlorine as an active ingredient is referred to as chlorine bleach. Its compounds will kill live organisms’ organic cells.

If you wish to kill cockroaches, you must expose them to chlorine bleach directly for an extended period. It’s also beneficial to spray them with bleach several times till they are drenched. The goal is for the bleach to absorb completely into their bodies, where it will cause the most harm.

Most people avoid using bleach since it is highly corrosive and will damage whatever surface it is sprayed on. When swallowed, bleach is hazardous, so picture the harm it could cause if your pets lick those surfaces by accident.

Bleach will be beneficial only when cleaning up cockroach remains after they have died. After eradicating the cockroaches, you can clean up with a bleach solution if you take the proper precautions, such as using gloves and a mask.

How Do I Get Rid of Roaches Forever?

The presence of roaches in your home can make life difficult for you and your family. While specific full-blown infestations may necessitate professional assistance, there are a few strategies you can take to get rid of roaches forever.

  • Peppermint: Peppermint might smell pleasant to humans, but it is lethal to cockroaches. Inhaling peppermint is like inhaling acid for them because they breathe through their skin. Peppermint can be used to make a spray, spread on the walls, or burn it. 
  • Eucalyptus:  Eucalyptus can be used to kill cockroaches in various ways. Apply it to the wall, combine it with Epsom salt, spread it on the floor, or spray it around using a spray bottle. Anything with menthol in it will put an end to those pests.
  • Soap dish and water: Soap will alter roaches’ breathing patterns, eventually killing them. You can spray them with an essential soap and water mixture in a spray bottle. This mixture works best on contact.
  • Boric acid: Boric acid is the most effective treatment for cockroaches. It’s pure poison, and all you have to do is pour it into the cracks, crevices, and areas beneath the doors.
  • Cocoa death treat: You can try this method if none of the others is working. You can add a bit of boric acid to the flour and cocoa mixture. The mixture will attract the cockroaches because they believe they have stumbled onto a feast. The cocoa acid mixture will eliminate them.


As you can see, a cockroach infestation in your home is nothing to be worried about. Though table salt will not work to get rid of roaches, Epsom salt will. We’ve also included some of the most effective roach-removal methods.