Discover 4 Smells that Attract Mosquitoes

Mosquito
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Written by Sandy Porter

Updated: August 7, 2023

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While many of us might seek to attract butterflies, bees, or pollinating beetles, we don’t want to attract mosquitoes. Unfortunately, some scents that lure helpful insects may also attract flying pests. This summer and fall, eliminating the smells that attract mosquitos in your backyard or on your body can improve your chances of winning the insect battle. Check out the list below and possibly protect your health.

Beware–these four smells may invite mosquitoes into your midst!

Common Types of Mosquitoes

Eastern Tree Hole Mosquito, or Aedes triseriatus, or Ochlerotatus triseriatus

More than 200 species of mosquitoes exist in the world, with 12 known to carry diseases. So, what smells attract mosquitoes? And can you avoid them?

©CDC/James Gathany/CC0 1.0 – Original / License

Whether you’re aware of the differences or not, several species of mosquitoes make their home in the United States. According to the CDC, some of the 200-plus mosquito species are mere nuisances, while others are dangerous, thanks to the diseases, parasites, and infections they carry.

12 species or types of mosquitoes are known to carry germs that spread these diseases, while the rest are annoying, rather than dangerous. These conditions may include:

  • Malaria
  • West Nile
  • Zika
  • Chikungunya
  • Dengue

So, protecting yourself against these annoying insects may prove the healthiest thing you do all year.

Most Attractive Smells to Mosquitoes

Mosquito, Dengue Fever - Fever, Malaria, Malaria Parasite, Anopheles Mosquito

©iStock.com/panom

Female mosquitoes hunt human blood. The nasty little insects use odor to find and choose their prey. The scents may vary from species to species, which results in some folks being bitten regularly while others aren’t. It comes down to geography, your personal aromas (natural or otherwise), and the species of mosquitoes in your area at the time.

Carbon Dioxide

Radiology Doctor working diagnose treatment virtual Human Lungs and long Covid 19 on modern interface screen.Healthcare and medicine,Innovation and Medical technology Concept.

One of the main smells that attract mosquitoes to humans is something we can’t help but create. As we exhale, CO2, or carbon dioxide, expels. Mosquitoes love this gas.

©greenbutterfly/Shutterstock.com

Unfortunately, one smell that attracts mosquitoes is something you can’t help but produce: carbon dioxide. This “air” that you exhale every second or so as you breathe pushes out a signal to mosquitoes and draws them in. Any mossie within a 100-foot radius is bound to come your way, as they use the sensors around their mouths to detect this gas.

Every human and animal releases CO2, meaning any living animal could attract these flying pests looking for a snack.

You can’t stop breathing, obviously, so you’ll likely want to find some natural insect deterrents to help. Folks who are pregnant, overweight, or frequently exercise produce more carbon dioxide, so beware!

Blood Type

blood type chart

ABO blood group vector. Types of blood (A, B, AB and O) chart. Red blood cell, antibodies in plasma and antigens. RH- and RH+.

©iStock.com/Rujirat Boonyong

Some studies have shown that mosquitoes actually have a blood type preference. These little vampires of the insect kingdom prefer the scents of those with Type O, which, of course, is the most common blood type in the world. If you’ve got Type A flowing through your veins, though, you’re in luck. They hate your blood.

Folks with Type O blood would best be served with some bug spray; light-colored, long sleeves; and pants when they hit the outdoors.

Fragrances

Rosa 'Beverly' (Korpauvio). A pink hybrid tea rose bred by Kordes Roses. Also known as 'Perfume Passion' in Australia.

Floral perfumes, colognes, lotions, and body sprays are some of the smells that attract mosquitoes to humans.

©Gary Matuschka/Shutterstock.com

Many colognes and perfumes, body sprays, and scented soaps and lotions attract mosquitoes. Many floral smells attract mosquitos, but some flowers they hate, so you don’t have to give up wearing these aromas outdoors. Just skip the roses and gardenias and pick lavender instead.

Fragrance Tip to Keep Mosquitoes at Bay

neem oil spray

Neem oil spray is easy to make and can also be bought commercially from a number of retailers.

©Wild As Light/Shutterstock.com

Many of your favorite floral fragrances may attract these pesky insects, but several essential oils keep them at bay. Create your own fragrance for outdoor use from:

  • Lavender
  • Citronella
  • Lemon
  • Eucalyptus
  • Cinnamon
  • Thyme
  • Greek catmint
  • Tea tree
  • Neem oil
  • Soybean oil
  • Geraniol
  • Peppermint

Skin Bacteria and Human Sweat

Man with hyperhidrosis sweating very badly under armpit in blue shirt because of hot weather. Travelling in asia thailand with backpacker. The man is pulling at his shirt, as if to fan himself with it. The shirt is visibly wet with sweat. The man is tanned. He is standing in a field. All that is visible is his chin and torso.

©RealPeopleStudio/Shutterstock.com

According to research, those dabs of “Miss Dior” behind the ear aren’t the only things pulling mosquitoes toward your tender flesh. These bugs also love the smell of the tiny microorganisms and bacteria that live in the trillions on your precious outer layer. These bacteria serve an important function, helping to protect you from the bad ones that would love to take over and make you sick.

Your skin bacteria thrive off the sweat of your skin, which is partially what gives you the smell mosquitoes love. This sweat-feeding blanket gives each person their own unique odor. (That’s why some colognes smell amazing on your partner and terrible on your brother.)

Additionally, each human’s unique, distinctive biome attracts these pests to us. And that means one person’s natural aroma may draw more mosquitoes than another. Apparently, the more diverse your biome, though, the less attractive you are to these flying pests. Scientists have yet to figure out how to control this and cultivate the higher numbers, so, you’re best off spraying on some lavender oil in the meantime.

Ways to Avoid Mosquitoes

Lavender essential oil

Apply some diluted lavender oil, citronella spray, or peppermint essential oil to your skin. Mosquitoes hate these aromas.

©iStock.com/Olivka888

Apart from skipping the above-listed scents, other things can help you keep mosquitoes away. You may opt for either fully natural solutions like essential oils or go with devices or chemicals.

  • Mosquitoes hate certain essential oils, including lavender, citronella, lemon, and cinnamon. Spray these on with a carrier oil mixed with water for a light, non-toxic insect repellent. Be sure to keep away from your pets, though, as many of these oils can cause health issues for them.
  • If possible, avoid products with DEET, as this compound is known to cause health issues. Other commercially available insect repellents prove effective and safer.
  • Light a citronella candle. As you gather around the campfire, picnic table, or firepit, this scent will help keep the mossies away.
  • Use fans and keep the air moving. Mosquitoes find it hard to land during “high” winds.
  • Dispose of any standing water. Mosquitoes breed in stagnant pools, laying their eggs here to hatch.
  • Stay indoors at dusk and dawn. These are the times mosquitoes are most active.

Plant lavender, peppermint, and lemon balm plants around the yard where you like to hang out. Since mossies hate these, they’ll be less prone to crashing your outdoor parties.


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About the Author

Sandy Porter is a writer at A-Z Animals primarily covering house garden plants, mammals, reptiles, and birds. Sandy has been writing professionally since 2017, has a Bachelor’s degree and is currently seeking her Masters. She has had lifelong experience with home gardens, cats, dogs, horses, lizards, frogs, and turtles and has written about these plants and animals professionally since 2017. She spent many years volunteering with horses and looks forward to extending that volunteer work into equine therapy in the near future. Sandy lives in Chicago, where she enjoys spotting wildlife such as foxes, rabbits, owls, hawks, and skunks on her patio and micro-garden.

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