Does Alcohol Kill Spiders? The Truth Behind Its Effectiveness




Affiliate Disclaimer

As an affiliate, we may earn a commission from qualifying purchases. We get commissions for purchases made through links on this website from Amazon and other third parties.

Are you wondering if that bottle of rubbing alcohol can put an end to your spider problems? It turns out, alcohol affects spiders’ web-making abilities and can harm their respiratory systems.

In this post, we’ll explore the effectiveness of alcohol as a spider repellent and how it compares with other methods. Get ready to clear some cobwebs from your understanding of spiders and spirits!

Key Takeaways

  • Alcohol affects spiders\’ web – making abilities and can harm their respiratory systems, but it does not kill them outright.
  • Using rubbing alcohol as a spider repellent may temporarily scare spiders away, but its effectiveness in killing or repelling spiders is limited. It could also be harmful to other creatures and the environment.
  • When using alcohol as an insecticide, precautions such as proper dilution, ventilation, and safe storage should be taken to ensure the safety of humans, pets, and the environment. Additionally, there are safer alternatives such as natural oils that can effectively repel spiders without posing significant risks.

Understanding the Effects of Alcohol on Spiders

A spider exploring a web in a laboratory.

Does rubbing alcohol kill spiders? Find out the truth behind alcohol’s impact on spiders and their reaction to it.

Does Rubbing Alcohol Kill Spiders??

Rubbing alcohol can scare spiders away when you spray it around your home. It smells strong, and spiders don’t like that. But if a spider drinks it by accident, the alcohol is not good for them.

It’s important to know that rubbing alcohol does not make spider eggs or live spiders die right away.

If you see a spider, spraying some rubbing alcohol might help keep them out of your space. Just remember, using too much isn’t nice for the air inside your house and could be unsafe for other creatures who eat bugs or insects.

The Reaction of Spiders to Alcohol

Understanding how alcohol affects spiders, some students did an experiment. They gave spiders a drink with 40% ethanol to see what would happen. The spiders acted differently than normal because the alcohol changed their behavior.

These changes were not good for them.

Another study looked at how different drugs, including alcohol, change what spiders do. When they had these substances in their bodies, the spiders could not make webs the right way and moved in strange ways.

This shows that putting these chemicals into spider environments can cause big problems for them.

Alcohol as a Spider Repellent

A spray bottle of alcohol-water solution near a spider web and household items.

Alcohol has been considered as a potential spider repellent, with some believing that it can effectively deter spiders from entering their homes. We will explore the efficacy of alcohol-water solutions and other alternatives for repelling spiders.

Efficacy of Alcohol-Water Solutions

Mixing water with alcohol can make a handy spray to keep spiders away. It won’t kill them on the spot, but it will scare them off. This mix works like a bug repellent that you might use in your yard or on a camping trip.

Use it in places where spiders hang out or where they get into your house.

Some people fill up spray bottles with alcohol and water to fight against pests like the Spotted Lanternfly. If these bugs lay eggs, dunking them in alcohol can stop them from hatching.

Always be careful using this mix around your home and try not to breathe it in too much, as it could hurt your nose and throat.

Alternatives to Alcohol for Repelling Spiders

If you prefer not to use alcohol for repelling spiders, here are some effective alternatives:

  1. Lemon oil: Spiders dislike the scent of lemon oil, making it a natural and pleasant way to keep them away from your home.
  2. Peppermint oil: Similar to lemon oil, peppermint oil’s strong fragrance acts as a deterrent for spiders without harmful chemicals.
  3. Chestnut fruits: Placing chestnut fruits in areas where spiders commonly appear can discourage them from nesting there due to a chemical they emit that spiders dislike.
  4. Vinegar: A solution of vinegar and water can be used as a spray to create an unpleasant environment for spiders without posing harm to humans or pets.
  5. Citrus: The acidic nature and strong smell of citrus fruits act as a great deterrent for spiders, keeping them at bay from your living spaces.

Safe Use of Alcohol Around the Home

When using alcohol as an insecticide, it’s important to take precautions to ensure the safety of yourself and others in your home. Proper application techniques and understanding the potential risks involved will help you use alcohol effectively while minimizing any negative impact.

Precautions When Using Alcohol as an Insecticide

Using alcohol as an insecticide can be effective, but it’s essential to take precautions to ensure safe use around the home. Here are some important precautions to keep in mind:

  1. Always use alcohol in well – ventilated areas to avoid indoor air pollution and potential inhalation of alcohol fumes.
  2. Do not apply alcohol near open flames or sources of heat due to its flammability.
  3. Keep alcohol away from children and pets, as ingestion can lead to alcohol poisoning.
  4. Avoid using high doses of alcohol, as it can be harmful to the environment and may contribute to air pollution.
  5. Be careful when applying alcohol on plants, as high concentrations can harm beneficial insects such as ladybugs that feed on aphids.
  6. Dispose of empty alcohol containers properly to prevent environmental pollution and harm to wildlife.
  7. Consider alternatives such as natural predators or environmentally friendly insect repellents before resorting to alcohol for pest control.

Proper Application Techniques

To ensure the safe and effective use of alcohol as an insecticide, it’s important to follow proper application techniques. Consider the following:

  1. Dilute rubbing alcohol with water in a 1: 1 ratio for safe and effective use as a spider repellent.
  2. Use a spray bottle to apply the diluted alcohol solution along baseboards, windowsills, and other entry points for spiders.
  3. Avoid direct contact with skin or inhalation of alcohol fumes by wearing gloves and using in well-ventilated areas.
  4. Reapply the alcohol solution every few weeks to maintain its effectiveness as a spider repellent.
  5. Store any remaining alcohol solutions out of reach of children and pets in a secure location.

Debunking Myths

Clearing up common misconceptions about the effectiveness of alcohol on spiders and addressing any myths that may exist about its ability to repel or kill them.

Common Misconceptions About Alcohol and Spiders

Many people have wrong ideas about alcohol and spiders. Here are some facts to clear up the misunderstandings:

  1. Spiders are not attracted to alcoholic beverages or substances that contain alcohol. They do not seek out or consume alcohol in any form.
  2. Using alcohol as a spider repellent or insecticide is not necessarily safe or effective. It can be harmful to the environment and other animals, and its effectiveness in repelling spiders is limited.
  3. While some people believe that spraying alcohol can kill spiders on contact, this is not entirely true. Alcohol may have a temporary immobilizing effect on spiders, but it doesn’t guarantee their death.
  4. Contrary to popular belief, spiders do not intentionally crawl into people’s mouths while they sleep, nor do they pose a significant threat to humans while they rest.
  5. The idea of using alcohol – based products such as colognes, hand sanitizers, or other scented items as spider repellents is based more on myths than proven scientific evidence.
  6. While it’s important to keep spaces clean and well – maintained to discourage spiders from taking up residence, using alcohol specifically as a deterrent may not be the most effective approach.

Spiritual and Cultural Perceptions of Spiders

Many cultures and spiritual beliefs have strong feelings about spiders. In some traditions, harming a spider is seen as bringing bad luck. For instance, Thomas Aquinas believed in showing kindness to all creatures, including spiders.

This reflects the idea that animals should be treated with respect.

In other cultures, there are myths and beliefs that suggest killing a spider will bring misfortune or bad omens. Witches and Neo-Pagans are often discriminated against due to their non-conformity with dominant cultural and religious norms.

These examples show how deeply ingrained cultural and spiritual beliefs can influence people’s perceptions of spiders.

Moving on from the spiritual and cultural aspects of spiders, let’s delve into the practical effectiveness of alcohol as an insecticide or repellent.


In conclusion, alcohol does not kill spiders, and it can even be harmful to them. While isopropyl alcohol may have some effect on spider mites, there are safer and more effective alternatives for controlling spiders.

It’s important to use insecticides safely and responsibly around the home. Understanding the truth about alcohol’s impact on spiders can help us make informed choices when dealing with these pests.

If you’re curious about the spiritual and cultural perceptions of spiders, explore our in-depth discussion at the meaning of spiders prophetically.


1. Can alcohol work as a bug repellent for spiders?

Yes, alcohol can act like an insecticide and help keep spiders away. It works well when sprayed directly on them.

2. Is using alcohol better than using bug sprays to kill spiders?

Alcohol may kill spiders but isn’t always the best choice. Bug sprays are often made to target pests and might be more effective.

3. Does spraying air fresheners keep spiders out of my home?

Air fresheners aren’t meant to kill pests like spiders. They only add scents that mask odors and won’t get rid of bugs.

4. Are essential oils good for getting rid of spiders?

Some essential oils have strong smells that might repel insects, including mosquitoes and possibly spiders, without being poisonous or harmful pollutants.

5. Should I use cleaning agents with alcohol in them to disinfect areas where I see spiders?

Cleaning with agents that contain alcohol can clean surfaces but might not be the best at keeping all types of pests like bats or bugs away from those areas.

About the author

Our latest articles

  • can bearded dragons eat dragon fruit

    can bearded dragons eat dragon fruit

    Deciding what to feed your bearded dragon can feel like a puzzle sometimes. Did you know that bearded dragons can actually eat dragon fruit? This article will guide you through the benefits and things to watch out for when including dragon fruit in their diet. Let’s keep reading! Nutritional Value of Dragon Fruit for Bearded…

    Read more

  • are bearded dragons smart

    are bearded dragons smart

    Many people wonder if their bearded dragon pets are smart. Surprisingly, bearded dragons show a level of intelligence compared to other reptiles. This article will explore their cognitive abilities and how they interact with humans, providing insights into their mental capabilities. Keep reading to find out more! Understanding Bearded Dragons’ Intelligence Bearded dragons exhibit impressive…

    Read more

  • can bearded dragons eat mealworm beetles

    can bearded dragons eat mealworm beetles

    Many pet owners wonder if their bearded dragons can safely eat mealworm beetles. Here’s a fact: mealworm beetles, when gut-loaded, are a nutritious treat for these reptiles. This article will guide you on how to incorporate them into your bearded dragon’s diet responsibly and the benefits they bring. Keep reading to learn more! Can Bearded…

    Read more