Does Alcohol Kill Cockroaches {Everything You Need To Know}

Do roaches infest your home or business place? Are you wondering does alcohol kill cockroaches.

Is it possible to kill this “stubborn” insect with alcohol?

Does Alcohol Kill Cockroaches?

Alcohol will kill cockroaches because they are attracted to the alcohol and they often drink to stupor which will cause them to drown and eventually die.

Roaches die when they take too much alcohol. Often, they get attracted to the sugar content in alcoholic drinks like beer. They continue drinking due to the high sugar content until they lose consciousness. They drown and die.

Does Alcohol Kill Cockroaches

When cockroaches drink alcohol, especially beer, they get carried away with its sugar content and continue to drink until they get drunk. At this juncture, just like a drunk human, they lose their sense of control and are unable to fly. They get weak and end up inside the alcohol.

Since they breathe through the spiracles in their hard shell, the liquid quickly fills the hole, preventing the insect from breathing.

This will eventually suffocate the cockroach to death. However, sometimes, you don’t have to make the cockroach drink the alcohol; you can also squirt their spiracles.

This also follows the same principle as though the insect drowned in alcohol. The squirted alcohol will fill up the hole and suffocate the roach.

Besides drowning, spraying alcohol can also kill cockroaches. They have an oily exoskeleton which helps to keep them hydrated and prevent their internal fluids from drying out.

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Alcohol washes away the oils drying up the skeleton and making it brittle. This allows moisture to escape, and the cockroach will eventually dry up. However, this may not be as effective as allowing the roach drink to stupor.

Cockroaches are fast and might escape while you try to hit them with spray.

Does Alcohol Kill Cockroaches’ eggs?

Cockroach eggs can’t die by spraying them with alcohol. This is because alcohol isn’t poisonous to them. The eggs don’t also have spiracles or holes yet through which one could suffocate them by spraying alcohol.

Alcohol doesn’t contain any toxic compound that can kill either a cockroach or its eggs. Note that the mechanism on which it kills roaches isn’t a poisonous mechanism but a drowning mechanism.

Since the part of roaches that makes it drown when sprayed with alcohol or when it gets drunk is missing in the egg, the egg is safe even when sprayed.

However, if you wish to get rid of roaches’ eggs, there are several other efficient methods you can adopt. You could spray boric acid on the egg. This will hinder the egg from further developing, and it’ll eventually die.

Are Cockroaches Attracted to Alcohol?

Cockroaches love alcohol, and they are often attracted to it. This is especially true for beer. Since the liquid has a high sugar content, entomologists claim that roaches are attracted to the liquid for its sugar content.

The argument that roaches are only attracted to alcoholic drinks like beer because of their sugar content alone isn’t strong enough. We can prove this by performing a simple experiment which goes thus:

  1. Get a cup of beer and keep it in an open space in your room without closing the lid
  2. Prepare a solution of sugar and water and place it close to the cup of beer
  3. Keep the two cups in a cockroach-infested area overnight
  4. Go back to check in the morning

You’ll realize that the cup with beer has more dead cockroaches than the cup containing the sugar solution. The sugar solution might even attract no cockroaches at all, while the beer cup has many dead cockroaches in it.

This shows that sugar alone isn’t the only thing attracting the insect to alcohol.

Thus, there must be a second factor and perhaps a third factor. Alcohol like beers comprises an extract from the hops flower.

Entomologists also claim that another thing that makes cockroaches attracted to alcohol is this extract called hops. In other words, cockroaches love alcohol, and they’re often attracted to it.

How to Kill Cockroaches With Alcohol

You can kill roaches with alcohol by opting for either of two methods. The first is to make them drown in a bowl containing alcohol, and the second is to spray them with the alcohol.

If you’re determined to eliminate the alcohol in your home, you can follow the steps indicated below:

1 : Lure and Drown

  1. Identify the area through which they enter your room
    Get a bottle of alcohol (better to use beer) and share the content into two or three separate cups or small bowls
    Place the alcohol in the identified area overnight since they’re more active at night
    Check back the bowl the following morning, and you’ll find the cockroaches drowned and dead in it.
    If you suspect there are still more cockroaches in your home, you may discard the dead roaches and reuse the alcohol the second time

2 : Spraying Method

  1. Get a squirt bottle and fill it with rubbing alcohol. Ensure that the squirt bottle has the right spray and not a loose spray. This will help to ensure that when you target a cockroach, the alcohol doesn’t fly around because you need it to hit the target
  2. Search for roaches and squirt them one after the other. Hit the roach’s spiracle so that it blocks the hole and prevents it from breathing and suffocate it to death. Don’t leave the insect until it’s dead. This is important because cockroaches are strong and could still manage to survive if left alone after spraying.
  3. Search for other roaches and repeat the process
  4. Clean up the dead roaches because they might attract more roaches since cockroaches feed on dead roaches.

The spraying option could be time-consuming and stressful, especially if your home is heavily infested. Therefore, the luring and drowning method is easier and preferable.

jason barrett

Hello, I'm Jason. I have 8 years of experience in dealing with pests. I try to provide you the best information that'll help you to make the pest control process easy & affordable Thepestmanagement.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.