Updated On

January 24, 2024

Why You Can Trust Us

Today’s Homeowner exists to help you maintain or improve your home safely and effectively. We uphold strict editorial standards and carefully vet the advice and resources referenced in our articles. Click below to learn more about our review process and how we earn money.

Learn More

    Update: The Spartan Mosquito company is now subject to a class-action lawsuit against them, saying these devices do not work at all. As you’ll see in my review, I find many issues with these devices and you could make one from household items for around $1 or less, so needless to say, I think you should stay away from this waste of money.

    The Spartan Mosquito Eradicator is nothing new in the world of mosquito attractants – the basic premise of creating carbon dioxide as an attractant has been studied for decades. That doesn’t mean that the Spartan Mosquito Eradicator is worth your money, though!

    Prefer to just be recommended something that actually works? The Thermacell Patio Shield is similarly priced and will keep mosquitoes away from your outdoor living areas.

    In this article, I let you in on everything you need to know about the Spartan Mosquito Eradicator — from how it works to how you can build your own device at home. Read on to learn all about the Spartan Mosquito Eradicator.

    One-time visit
    This one-time treatment includes an inspection, diagnosis, treatment, and follow-up (if needed), costing $150 to $350.
    GET ESTIMATES
    Monthly service
    Averaging $125 to $300 for an initial visit, this service includes inspections and treatments, costing between $50 to $75
    GET ESTIMATES
    Annual service
    A recurring service that provides regular inspections and treatments once a year, costing between $125 to $500.
    GET ESTIMATES
    Get Free Pest Control Estimates
    Connect with local pest control professionals near you.

    Spartan Mosquito Eradicator Overview

    The Spartan Mosquito Eradicator uses yeast to create carbon dioxide — the same process that is going on when you add yeast to a bread dough so it will “rise”.

    Why carbon dioxide? Because that’s what mosquitoes are attracted to. With every breath, humans exhale carbon dioxide, and that’s how mosquitoes find us to bite us. Mosquito repellents often mask this scent to keep mosquitoes away.

    With a simple formula of sugar, salt, yeast, and water, the Spartan Mosquito Eradicator releases a stream of carbon dioxide for hours — attracting mosquitoes and some other biting insects.

    In the above photo, you can see the contents of the tube. Sugar, salt, and the few little tan bits are the yeast.

    What Is It?

    The Spartan Mosquito Eradicator is a large, 11″ tube with a hook that is used to hang the device from a tree or bush on your property. Once you fill the tube with water, the yeast begins eating the sugar, growing, and dividing – releasing large amounts of carbon dioxide in the process.

    The cap of the Spartan Mosquito Eradicator has a series of small holes, allowing mosquitoes to venture inside and eat the mixture which is fatal for mosquitoes. Though the ingredients for the Spartan Mosquito Eradicator are not listed on its website, on the box the ingredients are listed as “yeast, salt, and sugar” – so it seems completely safe to use around family, friends, and pets.

    What Does the Spartan Mosquito Eradicator Do?

    This device functions on a very simple basis. Yeast is a living organism (a fungus) that loves to eat sugar and reproduce. In doing this, the yeast releases lots of carbon dioxide. The Spartan Mosquito Eradicator is a small plastic tube designed to keep the yeast happy – producing carbon dioxide for as long as possible.

    The device is loaded with water and hangs from a short tree branch or tall bush – about 6 feet off the ground. The device should not be placed in the sun, as the yeast will get too hot and die. Likewise, the device should be placed as far as possible from the area you want to actively enjoy because it will be actively attracting mosquitoes.

    Accessibility may be an issue, as not all homeowners have a proper place to hang the Spartan in the area plagued by mosquitos.

    The Spartan Mosquito Eradicator is NOT a trapping device in the sense that mosquitoes are supposed to get stuck in the tube. The company owner says the mosquitoes enter the tube, eat from the mixture inside the tube, then fly off and die within 2 weeks. So this is more of a mosquito bait/poison, rather than a trap.

    How Does the Spartan Mosquito Eradicator Claim To Work?

    It has long been known that one of the signals mosquitoes use to find and bite humans is the attraction to carbon dioxide. As we breathe, we continually breathe out carbon dioxide. Mosquitoes smell the carbon dioxide and follow the scent back to an unsuspecting victim just trying to enjoy the outdoors.

    A look inside the tube before water is added. I would estimate there’s only about 1/4 cup of raw materials inside.

    These tubes essentially try to trick mosquitoes by supplying many sources of carbon dioxide around your property. If well planned and maintained, the tubes should draw mosquitoes to the traps, have them eat some of the material inside, and then die off. This is supposed to keep them on the perimeter of your property and not your back patio – allowing you to enjoy the summer without mosquito bites.

    If placed in the early spring, the idea is that many of the emerging mosquitoes will be killed off after feeding from the tube before reproducing – thereby reducing the total population of mosquitoes throughout the warmer months. Claims on the device’s website (spartanmosquito.com) suggest that the device works for 90 days, but is most effective in the first 15 days.

    Based on the biology of yeast – it is unlikely that the yeast is actively producing carbon dioxide this whole time. However, if the initial population of mosquitoes is heavily reduced in the first 15 days, it may help to limit the local population.

    After being mixed with water, the sugar and salt mostly dissolves but the yeast remains visible

    The theory behind the Spartan Mosquito Eradicator is fundamentally sound and valid, but how effective it is will depend on the size of each population of mosquitoes, effective placement of the tubes, and setting the tubes very early in the mosquito season. 

    Does the Spartan Mosquito Eradicator Actually Work?

    The Spartan Mosquito Eradicator can work but it is not ideal for every situation.

    To understand the limitations, it’s best to take a look at what we know about carbon dioxide as a mosquito attractant:

    The Evidence

    Carbon dioxide has been shown to be as effective as other attractants in several studies – but it’s effects are more powerful with another attractant, such as octenol. While carbon dioxide is not as effective against biting midges, it is the most effective attractant for mosquitoes.

    That being said, the Spartan Mosquito Eradicator is not designed to be as effective as other active traps such as the Mosquito Magnet.

    For instance, research has shown that carbon dioxide works better when the flow is “pulsed.” In other words, mosquitoes are not only looking for carbon dioxide but they are looking for the pattern of carbon dioxide that is released as we breathe. Since the Spartan Mosquito Eradicator releases relatively stable amounts of carbon dioxide over time, it may not be as effective in attracting mosquitoes.

    Furthermore, a steady stream of carbon dioxide alone is not enough to overpower the evolutionary methods that mosquitoes use to hunt for victims. Carbon dioxide is important, but large groups of people or stinky animals can easily overpower a simple carbon dioxide trap.

    For instance, researchers found that a hamster in a slightly dirty cage was a better attractant than a carbon dioxide trap!

    While this is no justification to put a hamster outside in a trap for mosquitoes to feed on – it does show the limitation of carbon dioxide by itself. If you plan on having a party or spending lots of time outside where you will be sweating, you might be a more appealing attractant than simple carbon dioxide traps.

    Will This Product Harm Bees or Other Insects?

    The ingredients listed on the tube only contain three ingredients (yeast, salt, and sugar) – all of which are completely safe for bees, butterflies, and hummingbirds.

    In fact, few other animals or insects will likely show interest in the tubes because they are not attracted to the carbon dioxide it is giving off. Research has shown that without a light source, only mosquitoes are attracted to carbon dioxide traps.

    Plus, these household ingredients are safe to eat, so they should pose no risk to your health or your family’s well being.

    Is the Spartan Mosquito Eradicator Worth the Money?

    For most people, I would say these devices are not worth the money and some may consider them a “rip off” because of how cheap they would be to make yourself.

    For $30, you get 2 plastic tubes with caps, some sugar, salt, and a bit of yeast. Only 1.4 ounces per unit! So roughly 1.2 ounces of sugar, .2 ounces of salt, and a pinch of yeast. This is probably 5 cents worth of raw material if you’re buying in bulk.

    I’m a fan of paying for convenience, but charging $30 for two of these tubes that cost so little to make is too much for me to stomach.

    Build Your Own Mosquito Trap

    Considering that a 4-pack of Spartan Mosquito Eradicators costs nearly $60 from most retailers – you may want to experiment with creating your own yeast-based mosquito traps.

    The idea is simple: mix the right amount of yeast, salt, sugar, and water to create the perfect environment for yeast to grow and produce carbon dioxide. You will see this in the slurry you create as small bubbles rising to the surface.

    By creating a funnel into the bottle or jar you are using for the yeast, you make it easy for mosquitoes to get in, but hard for them to get back out. This gives you an added benefit over the Spartan Mosquito Eradicator in that it will actually trap the mosquitoes inside and not allow them to leave.

    The traps will look similar to the one on the right, but with more mixture.

    Researchers have perfected a recipe for yeast-based CO2 traps. Here’s a list of ingredients:

    • 50 g white sugar
    • 10 g baker’s yeast
    • 1.5 liter of distilled water (though tap water should work)
    • Pinch (or two) of salt

    Here are the steps to creating this trap:

    1. First, find a bunch of liter-sized plastic bottles. You will need approximately 4 bottles per acre of property that you own.
    2. Fill each bottle ⅓ to ½ full with the mixture above. Using a piece of paper, create a narrow funnel that directs mosquitoes into the bottle.
    3. The bottom opening should be only slightly larger than an average mosquito.
    4. Create a hook out of wire or use string to place the traps in the shade, near areas of high humidity and standing water where the mosquitoes are likely reproducing.

    These traps (like the Spartan Mosquito Eradicator) will work best during the first 12-15 hours. During this time, the yeast is actively growing and producing carbon dioxide. After this time, the sugar source begins to run out and the traps need to be remade. Keep refilling and refreshing these traps with fresh yeast, water, and sugar until you notice a significant reduction in the mosquito population. 

    If you’re still finding mosquitoes are an issue around your home, I suggest looking into more powerful and effective mosquito traps as well as yard sprays for mosquitoes. If that isn’t enough, consider contacting one of the best pest control companies in your area.

    8 Tips for Using DIY Mosquito Traps and Detterents

    If the trap I outlined above doesn’t do the trick for you, and you’re not ready to call in the professionals just yet, I have several tips for you below:

    1. Mosquito-Repelling Plants

    Plant mosquito-repelling herbs and flowers in your garden. Examples include citronella, lavender, rosemary, and marigolds. These plants can naturally deter mosquitoes.

    2. Citronella Candles and Torches

    Citronella candles and torches emit a mosquito-repelling scent when burned. Place them strategically in outdoor areas you want to protect. Its best to light them 10 to 15 minutes before you plan on occupying the area.

    3. Mosquito Nets and Screens

    Use mosquito nets over beds or sitting areas, especially when sitting outside for long periods of time or while camping. Install window and door screens to keep mosquitoes out of your home.

    4. Avoid Peak Mosquito Hours

    Mosquitoes are most active during dawn and dusk. If possible, limit outdoor activities during these times to reduce your exposure. Of course, this isn’t always possible, but it surely helps.

    5. Wear Protective Clothing

    When outdoors, wear long sleeves, pants, and socks to minimize skin exposure. Light-colored clothing may also be less attractive to mosquitoes.

    6. Keep Your Yard Clean

    Maintain a clean yard by mowing the lawn, trimming shrubs, and removing debris. Mosquitoes thrive in tall grass and cluttered areas. The neater your property is, the less mosquitos thrive in it.

    Remember that mosquito control methods may vary in effectiveness depending on your location and the mosquito species present. Experiment with different approaches to find the one that works best for your situation.

    Effective Alternatives for Mosquito Eradication

    While the Spartan Mosquito Eradicator claims to reduce mosquito populations, its effectiveness can vary.

    If you’re seeking more proven methods to control mosquitoes and create a mosquito-free environment, consider these alternatives:

    Professional Mosquito Control Services

    Hiring a professional pest control service can provide you with effective mosquito control. Experts use insecticides and other treatments to target mosquito breeding areas, significantly reducing mosquito populations.

    Bug Zappers

    Bug zappers are devices that use light to attract insects, including mosquitoes, and then electrocute them. They can be a valuable addition to your mosquito control system, especially in the evening. That said, the zapping noise they make is a bit annoying.

    Mosquito Traps with Proven Results

    Explore mosquito traps from reputable brands like Thermacell, Flowtron, and DynaTrap. These traps often use attractants, insecticides, or UV light to lure and kill mosquitoes. Check customer reviews on Amazon to find the best product for your needs.

    Removing Standing Water

    Mosquitoes breed in stagnant water. Eliminate sources of standing water in your yard, such as birdbaths, clogged gutters, and containers. Ensure proper drainage to prevent water accumulation.

    Insecticide Treatments

    Apply mosquito-specific insecticides to your yard, especially in areas prone to mosquito infestations. Follow product instructions carefully to ensure safety and effectiveness. Alternatively, employ a professional pest control technician.

    Bug-Repellent and Products

    Use mosquito-repellent clothing and skin products when spending time outdoors. DEET, picaridin, or oil of lemon eucalyptus are active ingredients known to deter and kill mosquitoes.

    Regular Property Maintenance

    Keep your yard well-maintained by trimming shrubs and mowing the lawn. This reduces mosquito resting areas. Likewise, collecting cut grass, leaves, and loose debris around your property also helps reduce the number of places mosquitos have to nest.

    Natural Predators

    Encourage natural mosquito predators like dragonflies, bats, and certain bird species by providing suitable habitats in your yard.

    Remember that mosquito control is an ongoing process. Combining multiple methods may be the most effective approach. Before investing in any pesticides, products or services, check customer reviews with retailers like Amazon and Walmart and seek recommendations from trusted sources to avoid wasting money on ineffective solutions.

    Note: Be cautious of supposed great products or services with questionable claims or negative reviews, such as those associated with Spartan Mosquito Eradicator reviews. Conduct thorough research to make informed choices for mosquito control in your area.

    Frequently Asked Questions

    Is the Spartan Mosquito Eradicator effective?

    The effectiveness of the Spartan Mosquito Eradicator is the subject of debate. While the device claims to reduce mosquito populations, it has faced criticism, including a class-action lawsuit. Some users report positive results, but others find it ineffective. It may depend on factors like mosquito species, location, and proper placement.


    How does the Spartan Mosquito Eradicator work?

    The device uses a mixture of sugar, salt, yeast, and water to produce carbon dioxide, which attracts mosquitoes. Once mosquitoes enter the device, they consume the mixture, which is fatal for them.


    Is the Spartan Mosquito Eradicator safe for pets and humans?

    The ingredients listed on the device are yeast, salt, and sugar, which are generally considered safe. It’s not toxic to pets or humans. However, always follow usage instructions and keep it out of reach of children.


    How long does the Spartan Mosquito Eradicator last?

    The device claims to work for up to 90 days but is most effective during the first 15 days. After this period, you may need to replace or refresh the device.


    Can I use the Spartan Mosquito Eradicator indoors?

    It’s not recommended to use the Spartan Mosquito Eradicator indoors, as mosquitoes are attracted to it leading to more indoor mosquito problems.


    Editorial Contributors
    avatar for Sam Wasson

    Sam Wasson

    Staff Writer

    Sam Wasson graduated from the University of Utah with a degree in Film and Media Arts with an Emphasis in Entertainment Arts and Engineering. Sam brings over four years of content writing and media production experience to the Today’s Homeowner content team. He specializes in the pest control, landscaping, and moving categories. Sam aims to answer homeowners’ difficult questions by providing well-researched, accurate, transparent, and entertaining content to Today’s Homeowner readers.

    Learn More

    photo of Lora Novak

    Lora Novak

    Senior Editor

    Lora Novak meticulously proofreads and edits all commercial content for Today’s Homeowner to guarantee that it contains the most up-to-date information. Lora brings over 12 years of writing, editing, and digital marketing expertise. She’s worked on thousands of articles related to heating, air conditioning, ventilation, roofing, plumbing, lawn/garden, pest control, insurance, and other general homeownership topics.

    Learn More

    Find Our Top Picks for Pest Control Pros in Major Cities