Skip to content

Does Listerine Kill Roaches?

Cockroaches are among the sturdiest creatures alive, and that is why they are not easy to exterminate. Some of the home’s products available at our hands, including Lysol, Listerine, and hairspray, can kill cockroaches. However, these products are not professionally designed to kill roaches. Therefore, these products can’t help you completely get rid of a cockroach infestation.

Does Listerine kill roaches? Yes! Listerine or any other strong mouthwash will kill cockroaches. This is because Listerine contains a high concentration of Alcohol, Eucalyptol, and Methyl Salicylate, which are toxic to insects, including cockroaches. However, it must be directly sprayed upon them in large quantities.

Moreover, the pungent smell of Listerine effectively repels roaches for a few hours and is an excellent alternative to natural roach repellents.

However, Listerine is not a solution to a cockroach infestation because it’s not entirely effective, must directly be sprayed upon roaches, is slow and messy.

Therefore, Instead of opting for a poor roach-killing product, I recommend using one of these products.

1. Max Force Glue Traps (Amazon Link)
2. Advion Gel Baits (Amazon Link)
3. Harris Powder Bait (Amazon Link)
4. Gentrol Growth Regulator (Amazon Link)
5. Loctite Foam Sealent (Amazon Link)

Optional Items
1. Gel Bait Professional Gun (Amazon Link)
2. Torch (Amazon Link)
3. Powder Bait Puffer (Amazon Link)
4. Insecticide Spray to kill a reveled colony in a single shot (Amazon Link)

However, please read this article: How to get rid of roaches? Before you buy a product.

Using listerine and peppermint oil for roaches is more Effective

Peppermint oil has proven to be an effective roach killer and repellent oil. Similarly, the strong smell of Listerine is also an effective cockroach repellent.

Therefore, combining Listerine and peppermint oil for roaches is even more effective at killing and repelling roaches.

To use Listerine and peppermint oil for roaches and other bugs, follow these simple steps,

Step 1: Mix Listerine and Peppermint oil

Take one cup of Listerine and add 2ml of Peppermint oil into it. Shake the solution to mix both of the components well.

Step 2: Add 3 cups of water to the mixture

Now mix the Listerine and peppermint oil with 3 cups of water. Next, shake the solution well. It will give you about 700 ml or 0.7 liters of solution.

Step 3: Add this solution to a spray bottle

Next, pour the solution into a spray bottle. It will help apply the solution easily.

Step 4: Spray the solution across multiple locations

To use Listerine and peppermint oil for roaches, spray it across the house at multiple locations, including the kitchen, bathroom, and other cockroach hiding places.

The solution of peppermint oil and Listerine will keep roaches away for 8 to 12 hours, depending on the strength of the solution. However, if sprayed directly on cockroaches, it will kill them.

You can also use electronic cockroach repellent, but its use is still controversial.

How to use Listerine to kill roaches?

To use Listerine to get rid of roaches, you must spray it directly onto the cockroaches. Moreover, if the solution of Listerine is not concentrated, it will fail to kill roaches.

To kill roaches with Listerine, follow these steps,

Step 1: Mix water and Listerine

Add 1 part water in 3 parts Listerine and mix the solution well. Remove any bubble before pouring the solution into the spray bottle.

Step 2: Pour the solution into a spray bottle

The next step is to pour the mixture of water and Listerine into the spray bottle. It will make the job pretty easy.

Step 3: Identify cockroach nest

The next step is to identify cockroach nests or lots of cockroaches in a single place to kill them. This is important because Listerine will only kill roaches if it’s directly applied, or else it will fail to do the job.

Step 4: Spray the Solution

Now spray the solution on the roaches and wait for the results. It will take a few days to get any results. If the solution is not working, use some other method.

Additional Read!