Introduction: Why You Should Make a Mosquito Trap

Picture of Why You Should Make a Mosquito Trap

With the ever present fear of mosquito borne disease prevalent in the world these days, maybe it's time to get back to the simplest solutions.

Building a personal mosquito trap is easy, and should be something any community concerned within infestations of disease carrying mosquitoes.

This design is straightforward, uses multiple triggers to attract mosquitoes.


Mosquitoes are drawn to the smell of CO2, thinking it's coming from animals they can get blood from.

They're also drawn to the warmth of the trap, especially when it gets cooler in the evening.

They are also attracted to dark colors, and dark holes which they use as hiding areas during times they don't want to fly (rain, mid-day etc.)

For personal protection from biting insects, see my post on a Spice Based Natural Insect Repellent.

Step 1: Materials

Picture of Materials

Plastic Bottle (Found bottles are a good way to recycle.)

Yeast (Most yeasts should work, experiment to see which you prefer.)

Sugar (Use any natural sweetener, brown sugar, honey or even syrup if that's all you have, any sugary fruit juice could also substitute when diluted.

Water (Filtered water is best, as it has fewer ways to attack the yeast, but use what is available.)

Step 2: Extra Supplies

Picture of Extra Supplies

Pan for heating water, kettle for boiling, etc.

Cutting Tool

Construction Paper, newspaper, paper bag, cardboard box., etc.

Step 3: Cut the Bottle

Picture of Cut the Bottle

Cut the bottle around a third of the way down, giving yourself a funnel with a lip the size of the remaining bottle.

Invert the top into the base.

Step 4: Secure the Top

Picture of Secure the Top

Secure the top of the bottle to the base, ensuring a secure seal.

Step 5:

Picture of

In a pan, cup, can or other receptacle, pour some sugar.

Either boil some water, pour water in the pan and cook it over heat, or otherwise let the sugar dissolve.

Allow the mixture to cool, or you may add water to bring down the temperature to below 90 F (32 C).

Step 6: Add Water and Yeast

Picture of Add Water and Yeast

The bottle is filled with the sugar water solution.

Pour the Activated Yeast in the bottle.

The Yeast will begin to dissolve, and begin to multiply while consuming the sugar.

Step 7: Fermentation Begins

Picture of Fermentation Begins

Here is how the yeast begins to break apart and ferment.

Step 8: Cover the Bottle

Picture of Cover the Bottle

Cover the bottle with a dark piece of paper, or place it in a paper bag, or a box. You'll want to place it in something which will act as a heater, to keep the water warm.

Step 9: The Finished Trap

Picture of The Finished Trap

The trap is now complete.

That's the business end of this inexpensive piece of protection.

Now it's time to put it to good use.

Step 10: Select Your Location

Picture of Select Your Location

You should place the trap in locations of your yard that are away from congregation areas.

In fence corners, behind bushes, or behind sheds are optimal spots.

For optimal use, keep the level of the water from dropping, and replace the water and clean the trap every two weeks, or as required.

The upkeep of this device is minimal, but the effects on your health could be immeasurable.




PaulGetson (author)2016-11-27

Look what I found out.

The Zika scare was used to encourage people to douse themselves with mosquito repellent. Most people use a DEET based repellent.

September 07, 2016

by Mike Adams, the Health Ranger

Tags: #DEET, #neurotoxin, #Zikavirus

"I've just released a hard-hitting mini-documentary that explains how DEET insecticide is one part of a binary chemical weapon that targets your brain for destruction.

The other part of that chemical weapon is found in carbamate pesticides which inundate the non-organic food supply. Once you combine these two, you get hypertoxicity to brain cells via "acetylcholesterase inhibitor chemicals," leading to mass confusion, fear, memory loss and an inability to think for yourself.

This video explains why the mainstream media is urging everyone to spray DEET all over their skin while carbamate pesticide chemicals are carpet bombed onto civilian populations (and the food supply). It's all a deliberate act of chemical warfare against YOU, and it's being waged for a specific purpose that's explained at length in the video. (Hint: It's no coincidence a major presidential election that depends on dumbed down voters is taking place in less than 70 days...)"

mstoffers (author)2016-11-04

All you have to do is carry 1 or 2 fabric druer sheets in your pocket. THey stay away. Everybody is happy.

MarcosG29 (author)2016-10-18

this is the best

offseid (author)2016-09-30

Thanks Paul, I will try this out! :D

DavidE153 (author)2016-09-28

I have had some success with a similar trap for yellow jackets, made from instructions posted here, with red wine and dish soap as the liquid inside the trap. When put near a nest, results were reasonable. However, I wanted to try near a set of garbage cans at the orchard where I work. These cans get used cider cups, ice cream plates, half-gnawed apples and the like, and the wasps ignored the trap completely. It seems that the garbage pails were the greater draw.

I have also seen many comments on many websites both extolling the soda bottle trap and condemning it as a waste and a fraud. As an alternative, here is an article on the Smithsonian website about a trap, made from an old tire, tested by scientists with excellent results in Guatemala. The comments sections is also worth reading. I have not tried this yet, as I have no old tires around.

The DNR (author)2016-09-12

Just making sure I understand.
1. When you made the instructable you had never done this before
2. When you made the instructable you had not checked if these work
3. You don't actually have many mosquitos in your area

It seems like maybe this wasn't the best thing to make an instructable on. Even more so after the lack of results. At the very least I'd suggest a VERY large disclaimer saying that you've never done this and are just following others' instructions from several years ago on facebook. I'd also suggest that you moderate your claims, such as "uses multiple triggers to attract mosquitos." Instructables that fail to work and get publicity hurt the website.

Hello i'm a vegan and i of corse prefer to not kill even insects if possible and i have found alternatives that work better and are completely safe. I just give non poisonous spiders amnesty to immigrate into my house.They love catching mosquitos qnd never tire of it. You just vacume up the husks and wipe area below where the spider goes potty and your all done.:) It never becomes spiderland because at least once a month a jumbo wolf spider will come hunting and eat all the other spiders and anything else and then move on to the next house. Then yes thar's right there is another spider immigration. Completely free and all natural.:) Works much better than poisons and is all natural and you make some insect friends along the way.;)

I'm sorry you got bullied here. They don't see that the reason you said you're vegan was to show one of your reasons for not killing.

Thank you for your support my friend, very courageous of you.

LupusW (author)Joshua Blackstone2016-09-13

Nobody wants to know if your vegan or not, sorry but please stay focused on the main subject, getting rid of those blood suckers.

Joshua Blackstone (author)LupusW2016-09-15

Yes sir you are right but that is the whole problem,Seeing insects as the enemy will prevent you from seeing insects as the solution. I hope you have a good day sir, sorry if my answer upset you.

Spiders aren't insects, Joshua

You are completely right, i just didn't want to get to specific and off topic. Thank you for the correction tbough.:)

MandyK12 (author)LupusW2016-09-21

you know there is no reason to be nasty,Joshua was just making a comment so apologise please

LupusW (author)MandyK122016-09-22

Cant believe this is still bothering people, thats maybe the reason everything is becoming worse, we are just trying to fix things in the past, which happened a long time ago, instead we should look up ahead and do better for things who are about to come.

but if it pleases you I accept your apology and back apologise for my mean words. Of course my reaction must have a direct relation to the dead of my brother who died in 2009 by a tragic accident.

Joshua Blackstone (author)LupusW2016-09-26

I'm so sorry to hear of the tragic loss of yout brother. I wish he was still with us. Since your still naturaly upset by his loss i would like to suggest you create a face book memorial page or profile for this way he will always exist and never truly disappear, and best of all new people will get an opportunity to know what he was like and how special he was. Take care my friend.:)

MandyK12 (author)LupusW2016-09-22

so sorry for your loss

I'd rather have mosquitoes than wolf spiders in my house. Yikes!

Victoria wolf spiders don't eat mosquitoes they eat spiders cocroaches, beatlles basicaly any kinda insect that doean't fly.. They are completely harmless to humans, even the big 50 cent sized ones are safe. They are scared of you too. Think of them as little machines just doing matinence around your house .

sarrabeth (author)2016-09-16

Female mosquitoes require standing water to lay eggs in. I saw a video about yellow fever (also transmitted by mosquitoes) several years ago and one of the ways they dealt with the problem was to put a small amount of oil into the cisterns. This was before the days of city water , and rooftop cisterns collected and stored water for individual households. Since this water was used for drinking, cooking, and everything else, it had to be a non-toxic type of oil. Cooking oil? vegetable oil? The oil layer kept the mosquito larvae from leaving the water.

I don't remember the name of the video, but it was about the search for the vector of the yellow fever.

Using some kind of bowl or bucket to the water, you wouldn't have to worry about harming pets or kids. Might be something to consider.

Thank you for that intrieging suggestion. Very interesting.

VictoriaG54 (author)sarrabeth2016-09-23

I live next to acres upon acres of DNR-owned wetlands. How would I get the oil spread over the area? ?

MartinB163 (author)2016-09-11

hi I did it a lot of time here in argentina, the bad i think i can see one or 2 mosquitoes. The mosquitoes needs: CO2, Humidity, warme temperature (to mimic the respiration of a mammal, like us). In the industry there are a lot of comercial traps, one of the best is when used octenonl. I usually have 2 types one in my garden that use gas and octenal. And anoter type in my home that use a uv light that produce heat, and cos when react with a whit surface.... but this one with yeast is not working fine

PaulGetson (author)MartinB1632016-09-11

Is it possible the yeast was killed off by high heat? That's one danger of using hot water to dissolve the sugar. Another might be chlorine and fluoride in the water, actually killing off much of the yeast and diminishing the production of CO2. Just some suggestions.

MartinB163 (author)PaulGetson2016-09-11

Hi Paul, yes hot water kill yeast and some other things. But i can grew them without any problem, this is not the problem, the problem are what the mosquitoes are looking for and they dont like this kind of co2... Im a biologist and the way to attract them is a bit more sophisticated.

PaulGetson (author)MartinB1632016-09-11

My current problem is the cold nights up here in Yukon. The mosquito season is almost over, and I still haven't brought the traps in to see how successful, or unsuccessful they were in operation. I do know some insects that were trapped, were only in there because they fell in the opening. There was also dust and debris carried there on the wind. I'll be pulling them inside very soon and will be able to tell if the yeast I used was adequate to generate CO2 and odors the mosquitoes are attracted to.

I had seen these all over social media a couple years ago, and thought I'd try it for the Makerspace contest. I still believe mosquito traps are useful in insect control, and should be encouraged and required in areas of infestation. Thanks for your advice and critique. I've always found it useful to look at problems from alternative viewpoints.

VictoriaG54 (author)PaulGetson2016-09-23

as posted earlier, I live adjacent to DNR wetlands, in Wisconsin. I've tried several of the commercial traps that run on propane tanks. Theyve cost several hundred dollars each and have only lasted one season each. Perhaps it is due to the abundance of mosquitoes here. (They often get jammed up with mosquitoes and then are unable to pull more in.) I've finally given up doing much outdoors during heavy mosquito hrs. or use sprays and other chemicals if there is a special occasion where we MUST be outdoors (outdoor parties, cookouts near our pond, etc.)

PaulGetson (author)MartinB1632016-09-11

Thanks I'll look around for better bait too and try some on the next traps I make.

MartinB163 (author)PaulGetson2016-09-12

hai Paul, the water temperature is ok and the water too ;-)

moon510 (author)MartinB1632016-09-11

great info i will forward to my friend in Maui who gets stung by mosquitos and wonders why.

MartinB163 (author)moon5102016-09-12

yvw, if you need another help just send me a pm ;-)

PaulGetson (author)moon5102016-09-11

You can find a lot of recipes for natural insect repellent, here's one I made. Experimentation with spice composition can be useful depending on the species of insects you're trying to deter from bothering you. Google is your friend. ;)

MartinB163 (author)moon5102016-09-11

octenol is one of the best attractant, and if you add heat and co2 is the best combination.

PaulGetson (author)moon5102016-09-11

He could also try making his own insect repellent.

buggutz (author)2016-09-16

Been making these for years. Wasps and flies rise off the bait towards light. Run a piece of any handy tape across the bottom side to side and stick a small bait container in the middle under the center hole. The little aluminum cup from some votive candles is perfect. For fruitflies put a small bit of fruit into the bottle and.put the closed end against a window. This one cleared my house of most fruitflies in about 6 hours...not prezakly a complicated proceedure...

CindiK1 (author)2016-09-12

Can't WAIT to Try This ^_^

MlH1 (author)2016-09-12

How many can a trap catch? How long will a trap last before it goes bad for mosquitos? Should mosquitos be tested for ZEKA, we live in Florida and frequently travel to Racife, Brasil to visit relatives. Recife was the epicenter for ZEKA in Brasil.

lackne (author)2016-09-11

I used it to catch fruit fly's with vinegar. Thank you so much, you saved our kitchen. The recent fly invasion brought me to the point where I was ready to burn it down.

PaulGetson (author)lackne2016-09-11

For fruit flies, I get a few plastic disposable drink cups (beer cups), add a half ounce of apple cider vinegar, and maybe a bit of water, a few drops of dish soap, and mix it up a bit, making a few bubbles. Then I take a sheet of plastic wrap (saran wrap or something similar) and stretch it over the lid of the cup, forming a good seal, and a taut surface. Then I poke a hole or two in the top, near the center. I place these around the kitchen, or where the flies are more visible. The flies are attracted to the vinegar smell, and can't find the hole to fly out very easily. Once they touch the vinegar at the bottom, they get trapped by the water. Even if they crawl out and up the side of the cup, they'll suffocate as they sick to the side and dry out. You could also put a bit of rotting fruit in the bottom of the cup either with the vinegar, or on its own in a bit of water. The effect should be similar.

lackne (author)PaulGetson2016-09-12

Great! Sounds even better :-)

Telliria (author)2016-09-12

I use something similar whenever I have a banana fly infestation. Just change the mix to water with a little bit of apple cider vinegar, honey and a drop of dish washing detergent. The vinegar and honey attracts the flies but due to the soap (no surface tension anymore) they will be drawn into the water and drown. Quite effective.

JimboFarns (author)2016-09-11

Looks Awesome!

I am going to try this ASAP and post the results!

I live in South Africa, (hot and dry winter) with wet summers, but I personally live by a river, so mozzies, miggies, moths and all are a nightmare!!

PaulGetson (author)2016-09-11

A Canadian classic from the National Film Board.


Nick_Zouein (author)2016-09-11

Simply this trap never worked for me.. i tried many variations but no.

Fole56 (author)2016-09-11

Somebody mentioned putting beer in the trap. I have some beer that I brewed at home which doesn't taste good because it's a bit "Yeasty". Would that work ?

PaulGetson (author)Fole562016-09-11

And I couldn't see why it wouldn't work.

PaulGetson (author)Fole562016-09-11

Try it. If it works let us know, if it doesn't, let us know.

cuyler1 (author)2016-09-11

Lived in florida all my life ,way over a decade,and if the Mosquito Patrol Division thought of a way like this they would tell everyone to do so. Due to the Zika outbreak I have actually witnessed them spraying this neighborhood once a week instead of monthly! Hey! if it works I'll send pictures but everything I've tried posted here and on YT has only killed flies.

About This Instructable




More by PaulGetson:How I Took Star Pics With My PhoneSpice Based Natural Insect RepellentMaking Fractal Art With High Voltage
Add instructable to: