Does tea tree oil repel spiders? The truth behind this popular DIY spider repellent






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Tea tree oil has been hailed as a natural remedy for a plethora of ailments, ranging from acne and dandruff to insect bites and cuts. In recent years, some have also claimed that this essential oil can keep spiders at bay. With its potent antifungal, antiviral, and antibacterial properties, it is not surprising that tea tree oil has been touted as a spider repellent. However, is there any scientific evidence to support these claims, or is it just another myth? In this article, we will delve into the world of tea tree oil and its purported effects on spiders. We will examine the scientific studies that have been conducted on the topic, as well as anecdotal evidence from those who have tried using tea tree oil to keep spiders away. By the end, you should have a clearer understanding of whether tea tree oil is a viable spider repellent or just a natural remedy with no real impact on our eight-legged friends.

Understanding Spiders and Their Behavior

Spiders are fascinating creatures that can evoke both fascination and fear. There are over 40,000 known species of spiders worldwide, each with their unique characteristics. They belong to the arachnid family, which includes scorpions, ticks, and mites.

Spider Anatomy

Spiders have two main body parts: the cephalothorax (head) and abdomen. They have eight legs attached to their cephalothorax that they use for movement. Their bodies are covered in hair-like structures called setae.

Spider Diet

Most spiders feed on insects such as flies, mosquitoes, and roaches; some larger species eat small mammals like mice or lizards. Some spiders even catch other spiders in their webs to eat them!

Spider Reproduction

Mating is a dangerous game for male spiders since female spiders tend to be much larger than males; they might get eaten by the females! Once mating occurs with a receptive female spider, she lays eggs in an egg sac that she carries around until the spiderlings hatch.

Common House Spiders

The most common types of house spiders include Wolf Spiders (Lycosidae), Jumping Spiders (Salticidae), Cellar Spiders (Pholcidae), Brown Recluse (Loxosceles reclusa), Black Widow (Latrodectus mactans).

Why Do People Want To Repel Spiders?

People want to keep these creepy crawlies out of their homes for several reasons:

  1. Fear: Many people suffer from arachnophobia – an intense fear of spiders.
  2. Allergies: Some people are allergic to spider bites.
  3. Poisonous: Certain types of venomous spiders can cause severe harm if left untreated.
  4. Hygiene: Nobody wants unwanted guests roaming around in their home.

Does Tea Tree Oil Repel Spiders?

There is a common belief that tea tree oil can repel spiders. Tea tree oil, also known as melaleuca oil, is extracted from the leaves of the Australian tea tree (Melaleuca alternifolia). It has been used for centuries by indigenous Australians for its medicinal properties.

How Does Tea Tree Oil Work?

Tea Tree Oil contains terpenes, which are natural compounds that have insecticidal properties. These compounds can disrupt the nervous system of insects and spiders, causing them to be repelled or killed.

Is There Any Scientific Evidence To Support This Belief?

Currently, there is no scientific evidence to support the claim that tea tree oil repels spiders. Most studies have been conducted on other insects such as mosquitoes and flies.

However, some anecdotal evidence suggests that it may work against certain types of spiders. The key issue with using anecdotal evidence is the lack of rigor in testing and a placebo effect where people believe something works when it doesn’t.

Benefits and Drawbacks of Using Tea Tree Oil as a Spider Repellent

Tea tree oil is a popular choice for those looking for a natural spider repellent. While it may be effective in some cases, there are both benefits and drawbacks to using this essential oil as a spider repellent.

Benefits of Using Tea Tree Oil

Natural Alternative

One of the biggest benefits of using tea tree oil is that it’s an all-natural alternative to chemical pesticides. Many people prefer not to use harsh chemicals in their homes, especially if they have children or pets.


Tea tree oil has many applications beyond its use as a spider repellent. It can also be used for skincare, haircare, and aromatherapy.

Easy to Use

Using tea tree oil as a spider repellent is easy; all you need to do is add several drops of the essential oil into water or vinegar solution inside a spray bottle and then apply it onto surfaces where spiders crawl over regularly.

Drawbacks of Using Tea Tree Oil

Effectiveness Varies

While some people swear by tea tree oils’ effectiveness against spiders, there isn’t enough scientific evidence to support this claim. The efficacy varies depending on factors such as the type of spider species present in your home or workplace, how much tea tree oil you’re using per application, among other factors. Therefore its effectiveness can be inconsistent with different types of spiders species.

Toxicity Risks for Pets

Although tea tree oil is safe when used correctly and diluted appropriately with another carrier agent like water or vinegar solution but it can be toxic when ingested by pets like cats and dogs due to their unique metabolism system that cannot process certain compounds found in essential oils such as terpenes which are naturally occurring compounds found in most plants including melaleuca alternifolia (Tea Tree). If accidentally ingested by your pet ensure you contact the pet’s vet immediately.


Tea tree oil can be quite expensive compared to other natural spider repellent alternatives like peppermint oil or citrus oils. This higher cost of tea tree oil may deter some people from using it as a spider repellent in their home or workplace.

How to Use Tea Tree Oil Safely

If you decide to use tea tree oil as a spider repellent, here are some tips for using it safely:

  • Always dilute the essential oil with water or vinegar solution before use.
  • Test for allergic reactions by applying a small amount of diluted tea tree oil on your skin and wait for 24 hours before applying it all over your home.
  • Ensure you avoid direct contact with eyes when spraying around your house; this is important since undiluted essential oils can cause eye irritation and discomfort.
  • Store tea tree oil out of reach from children and pets, and always follow the manufacturer’s instructions when using this essential oil.

Scientific Studies on Tea Tree Oil and Spider Repellency

While there isn’t enough scientific evidence to support the effectiveness of tea tree oil as a spider repellent, some studies have been conducted to investigate this claim. Here are some of the key findings from these studies:

Study 1: A Study on Essential Oils and Arachnids

In a study published in the journal “Phytochemistry Reviews,” researchers explored the effects of different essential oils on arachnids, including spiders. The study found that tea tree oil had a mild repellent effect against spiders.

However, it’s important to note that this study was conducted in a laboratory setting and may not accurately reflect real-world conditions where factors like temperature and humidity can affect results.

Study 2: Tea Tree Oil as an Insecticide

Another study published in “Journal of Economic Entomology” tested tea tree oil’s efficacy against common household pests like ants, mosquitoes, roaches, among others. The study found that tea tree oil was effective at killing or repelling many insects but didn’t show any significant effect on spiders.

This finding suggests that while tea tree oils’ insecticidal properties may be useful for controlling other bugs around your home or workplace, it may not be an effective strategy for repelling spiders.

Study 3: A Comparative Analysis

A comparative analysis between peppermint oil & melaleuca alternifolia (Tea Tree) essential oils was done by researchers at Auburn University College of Veterinary Medicine; they concluded that Peppermint essential oils had better efficacy than Melaleuca Alternifolia (tea tree) against black widow spiders but both were ineffective when used alone or diluted with water significantly lowering their chances for success; however combining both peppermint & melaleuca alternifolia (tea tree) increased their efficacy by over 50%.

This finding suggests that combining natural remedies may be more effective than using a single essential oil like tea tree oil alone for spider repellency.

The Verdict

While some studies suggest that tea tree oil has mild repellent effects on spiders, there isn’t enough scientific evidence to support its effectiveness as a standalone spider control solution. It’s important to remember that the efficacy of natural remedies varies depending on factors such as the type of spider species present in your home or workplace, how much tea tree oil you’re using per application, among other factors.

If you’re struggling with persistent spider infestations in your home or workplace, consider contacting pest control experts who will help you identify the most effective solutions tailored explicitly to your unique situation without causing harm unnecessarily.

How to Effectively Use Tea Tree Oil to Keep Spiders Away

If you want to use tea tree oil as a spider repellent, here are some tips on how to use it effectively:

Choose the Right Concentration

Tea tree oil is potent and can be toxic if used in high concentrations. Therefore, it’s essential to dilute the essential oil with water or vinegar solution before application. The recommended concentration is 5-10 drops of tea tree oil per eight ounces of water or vinegar solution.

Identify Spider Hotspots

Identifying where spiders like to hang out will help you target areas where you should apply your tea tree oil spray. Common spider hotspots include corners, crevices, windowsills, door frames, and other dark and damp areas.

Clean Your Home Regularly

A clean home reduces the likelihood of attracting spiders since there will be fewer places for them to hide and build their webs. Cleaning regularly also helps remove any existing spider webs that may have formed.

Use Essential Oils Synergistically

As stated earlier in this article many studies have shown that combining multiple natural remedies may be more effective than using a single essential oil like tea tree alone for spider repellency; therefore consider using different natural oils together like Peppermint & Tea Tree oils.

DIY Tea Tree Oil Spider Repellent Spray Recipe

Here is an easy recipe for making a DIY tea tree oil spider repellent spray:


  • 8 oz distilled water
  • 5-10 drops of pure organic tea tree essential oils
  • A spray bottle


  1. In an empty spray bottle pour distilled water.
  2. Add 5 -10 drops of pure organic Tea Tree Oil into the bottle.
  3. Tighten the cap onto your spray bottle and shake well.
  4. Spray around entry points such as doors or windowsills daily until no more spiders are seen.

Safety Precautions

When using tea tree oil, it’s essential to take the necessary safety precautions to avoid any accidents or irritations:

  • Always keep tea tree oil out of reach from children and pets.
  • Before using the spray around your house, do a patch test on a small area of your skin to check for allergic reactions.
  • Always dilute the essential oil before use. Undiluted tea tree oil can cause skin irritation or even chemical burns.
  • Store tea tree oil in a cool, dry place away from heat and sunlight; this will help preserve its potency and prevent degradation.

Alternative Natural Spider Repellents to Consider

If you’re looking for natural alternatives to tea tree oil for repelling spiders, here are some other essential oils and natural remedies you can consider:

Peppermint Oil

Peppermint oil has a strong scent that spiders find unpleasant. The menthol in peppermint oil is what makes it an effective spider repellent. It’s also non-toxic, making it safe for use around children and pets.

To use peppermint oil as a spider repellent, add several drops of the essential oil into water or vinegar solution inside a spray bottle and then apply it onto surfaces where spiders crawl over regularly.

Citrus Oils

Citrus oils like lemon, lime, orange have strong scents that spiders find unpleasant. They are also non-toxic and safe for use around children and pets. To use citrus oils as a spider repellent, follow the same steps as with peppermint oil.

Vinegar Solution

Vinegar is another natural remedy that may help repel spiders. Its acetic acid content makes vinegar smell unappealing to many pests including some arachnids like Spiders; however its effectiveness varies depending on different factors such as species of the spider present in your home or workplace among other factors.

To create your vinegar solution add equal parts of water & white vinegar into a spray bottle then apply this mixture onto surfaces where spiders crawl over regularly; reapply every few days to maintain efficacy.


Chestnuts contain saponin which makes them an effective spider repellent remedy when placed at entry points around your house or workplace such as windowsills or door frames. However this method works best against certain types of spiders but not all species respond well to chestnut treatment methods so keep this in


Is tea tree oil an effective spider repellent?

Tea tree oil is known for its potent and natural insect repellent properties, but it is not a guaranteed spider repellent. While some people claim that using tea tree oil can help keep spiders away, there is limited scientific evidence to support this. However, it is worth noting that spiders are averse to certain scents, and tea tree oil has a strong scent that may help to deter them.

How do I use tea tree oil to repel spiders?

To use tea tree oil as a spider repellent, you can mix a few drops of it with water in a spray bottle and spray it in areas where spiders are likely to enter your home. Alternatively, you can add a few drops of tea tree oil to a diffuser and allow it to diffuse throughout your home. You can also soak cotton balls in tea tree oil and place them around windows and doors to prevent spiders from entering.

Are there any downsides to using tea tree oil as a spider repellent?

While tea tree oil is generally safe to use as a natural insect repellent, some people may experience skin irritation or allergic reactions to the oil. If you have sensitive skin, it’s important to test the oil on a small area of your skin before applying it to larger areas of your body. Additionally, tea tree oil should only be used as a repellent and should not be used to kill spiders or other insects, as it can be harmful to them.

What other natural remedies can I use to keep spiders away?

There are several other natural remedies that you can use to keep spiders away from your home. These include peppermint oil, vinegar, citrus, and lavender oil. Similarly to tea tree oil, these scents are not guaranteed to repel spiders, but they may help to keep them at bay. Additionally, keeping your home clean and clutter-free can discourage spiders from entering as they prefer dark and dusty environments.

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