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What Are No-See-Ums? And How to Get Rid of Them.


Also known as biting midges or sandflies, no-see-ums are a family of small flies that resemble gnats and mostly feed on plant nectar. If their name didn’t give it away, they’re often impossible to see, as they’re usually no more than 1–3 mm in size (about the size of the point of a pencil!). In fact, most people don’t realize they’ve encountered these bugs until they start to itch. You see, just like mosquitoes, female no-see-ums bite and drink blood, which they require to lay eggs. 

But here’s the bad news: no-see-um bites tend to be more painful, more irritating, and more numerous than mosquito bites, which is largely due to the saw-like mouth parts they use to rip into your skin. In other words, you don’t want these bugs anywhere near you, your family, lawn, or pets—and we’re here to help you make that happen. Read on for simple, family-safe strategies for getting rid of these little monsters and preventing their awful bites. 



Like with any pest, prevention is unquestionably the best form of no-see-um control, and the easiest way to avoid painful bites. Because of their similar life cycles and environmental needs, preventing no-see-ums looks a lot like basic mosquito prevention. That is to say, it’s all about reducing unnecessary moisture, breeding sites, and common hiding spots. Here are some basic guidelines to follow. 

  • Maintaining a clean, organized, and trim yard is essential. No-see-ums are attracted to spaces with clutter and dense vegetation, including brush, bushes, and tall grass. Start by removing all non-essential clutter from your yard, especially items that collect moisture like unused equipment, planters, tree stumps, etc. Then, mow and trim shrubbery weekly or more as needed.
  • If your lawn includes water features like bird baths, decorative ponds, or fountains, you’ll need to closely monitor these items during spring and summer, cleaning and repairing as necessary. Even better, seriously consider draining these features during peak no-see-um season (Mar.–Sept.).
  • To prevent breeding, repair or replace leaky or otherwise faulty drains, pipes, hoses, sprinklers, and faucets ASAP
  • Limiting sources of light just outside your home can significantly reduce no-see-um populations. For best results, keep your blinds closed at night and keep your outside lights off during spring and summer. We also suggest trading your traditional light bulbs for those that do not attract bugs, such as yellow compact fluorescent lights (CFL), sodium vapor bulbs, or halogen options. 


Nobody wants a body covered in red, swollen, itchy bumps. Thankfully, preventing no-see-um bites with Cedarcide is simple and takes just a few seconds. 

Before hiking, camping, lawn work, dog walks, and other activities that could expose you to no-see-ums, apply Cedarcide Original to you, your family, and pets. Then simply reapply every 5-7 hours or after getting wet. Not only is Cedarcide Original non-toxic and safe for your family and pets, it can be used all throughout your home to kill and repel pests like fleas, ticks, ants, mosquitoes, and mites. It’s also a very popular alternative to traditional chemical-based flea & tick products. 



With the family-safe Lawn + Garden Kit, you can get the bite-free yard you and your family deserve. Best of all, it’s super easy to use and kills and repels all sorts of biting and destructive bugs, not just no-see-ums. 

For best results, spray your entire lawn, including shrubbery and bases of trees, with PCO Choice (which is included with the Lawn + Garden Kit). Pay special attention to dense vegetation like bushes, as this is where no-see-ums tend to hide and breed. Then simply spray again in about two weeks and move on to monthly applications after that.

If you’re not currently struggling with no-see-ums and you’re just looking for prevention, you can start with monthly applications right from the beginning. If you live in a warmer region such as the South, applications should be done every month unless the temperature drops below freezing for more than a few weeks. If you live in a cooler climate, start spraying monthly in late February and then taper off in November as winter really starts to set in.

Because PCO Choice is plant-based and family-safe, no downtime is necessary. You, your family, and pets can enjoy your lawn right after application!

For additional protection, we strongly advise spreading Cedar Granules throughout your outdoor space, especially in those areas where you and your family spend the most time, like patios, balconies, BBQs, etc. (Cedar Granules are also included in the Lawn + Garden Kit).


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  1. Hi, will this kill all insects? We have a lot of lizards and frogs in our yard and don’t want to poison their food. We just want the no see ums gone. We don’t even have mosquitoes because of all the animals.

    1. Jonathan At Cedarcide

      Hi there, Andi

      No need to worry, when using our products you will not endanger your lizards and frogs, they will still thrive in your lawn. Our products are specifically designed to target bad bugs without harming pollinators like bees and butterflies 🙂

      I’m here if you need anything else or have questions.

  2. Judy Nogales

    I have been to so many different websites on noseeums almost all of them are the same about the prevention of this standing water and so on and so forth I live in a one-bedroom apartment in Phoenix Arizona I have no standing water anywhere near me or any of or any of the stuff that’s mentioned about removing or eliminating so that noseeums are not attracted 2 also they said that noseeums can’t or don’t live indoors I’m sorry but mine do I know that all that information my thing is I’ve had these bloodsuckers for three years now they’re in my clothing my head my body my dogs everywhere and anywhere that is inside of my apartment they’re even inside of my refrigerator my food my dog’s food I have asked for help on many websites and it comes back to the same thing I came across this website I know that is hard to get rid of them because of their reproduction and the way they reproduce but I would least would like some help on controlling them minimizing or whatnot and I’m hoping that you can help me on what type of spray I should use to spray the inside of my apartment for the adults but for the leava per say the ones that haven’t hatch what type of spray do I use on those hoping and praying that you can help me thank you

    1. Jonathan At Cedarcide

      Hi, Judy!

      We’re so sorry to hear about this issue. We’ll get straight to the point: this is what you want for killing and repelling them indoors as well as directly on yourself to prevent bites 🙂

      1. Belinda Rushton

        I have just moved into a flat andcan only see one or two of them, but in 3 days I’ve been bitten 3 times. I am in UK and you say you do not ship to UK. Do you have any advice for me please?

        1. Jonathan At Cedarcide

          Hi there, Belinda.

          To clarify we DO ship to the UK 🙂

          I would suggest using our All-Purpose Bug Spray for killing and repelling no-see-ums and preventing bites:

          I’m here if you need anything else. Have an awesome day.

    2. I just moved to Arizona and came upon this article while trying to find a way to get rid of these things. I’ve only been here a month and every night these things have been eating me ALIVE. They’re in my bed by the thousands. Nothing is working and none of my neighbors even have this issue. I’m miserable and want to sell my house and go back to Virginia. Who knew that Arizona could be such a h*llscape.

      1. Jonathan At Cedarcide

        I’m so sorry to hear that, no-see-ums can be awful, but our bug sprays work very well against them, killing, repelling and preventing bites. I’d go with this for your issue, it’s our extra strength bug spray:

        I’m here if you have any more questions, 800-842-1464

  3. I was out of options for treating fleas on my dogs and in the backyard. Ordered the PCO Choice and granules. Going on almost two months of no fleas! Feels good not using toxic chemicals! It’s a lifesaver.

    1. Jonathan At Cedarcide

      Thanks for the comment, Yvette!

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