Quick and Dirty Mosquito Trap

Update: I have contacted our Chinese speaking DIY:happy operative Shana from iRocks for a more accurate translation. Turns out I was way off, so check out the updated and translated instructions.

How to build a Mosquito trap.

Materials Needed:

2000ml (2 liter) bottle
50 gram (brown?) sugar
1 gram yeast
Thermometer
Measure cup
Knife
Black paper

 52 151675034 9652A8B384-1
1. Cut the top of the bottle as shown

2. Put 200ml hot water in the bottle, stir with 50gram brown sugar. Put the sugar water in cold water to cool it down til 40C (temperature).

They use a bigger container with cold water - put the small cup that they use to make sugar water in that container and that stick is a thermometer because they want the sugar water to cool down to 40C (temperature).

3. After cooling down, put the sugar water in the bottle then add the yeast.
No need to mix the yeast with the sugar water. When yeast ferments, it creates carbon dioxide.

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4. When you cut the bottle, dont throw the top part away because that'd be needed for step 4 - you see they put the top upside down to fit into the bottle.

Carbon dioxide will be released from where we drink the bottle so make sure to seal the edge.

5. Put black paper around the bottle since mosquitos like dark places and carbon dioxide. This mosquito trap will then start working.
Mosquitos fly around the corner, so the best place to place the trap is at some dark corner.

TIPS: Put the trap in some dark and humid place for 2 weeks, you'll see the effect. You'll have to replace the sugar water + yeast solution every 2 weeks.

Here's a link to the original Flickr photos.

Update: The idea is apparently from a school class in Taiwan. They invented the trap through trial and error. Here is a link to the class's website.

Many commenters have noted that this DIY mosquito trap doesn't work in all areas (or on all species of Mosquitos). Check out Mega-Catch mosquito traps for a commercial solution with a wider effectiveness.

I tried the sugar and yeast

I tried the sugar and yeast and it did seem to have a pleasant scent. In fact my son was attracted to it and climbed into the bottle and got stuck. Stung by a bunch of bugs too. So I tried the soap. While it didn’t attract as many mosquitoes, at least when my sun crawled in, he was able to slick himself up and crawl back out.
I vote for the soap!

Use a little bit of soap

Use a little bit of soap instead of the brown sugar and yeast. Put a little bit of decaying vegetation in it as well. The sugar will attract ants which secrete chemicals that the mosquitoes do not like.

Try this website.

Try this website. mymosquitodeleter.com. This is simple product that works. You will be amazed by the removal of the mosquito population in your yard. This really works and it's cheap when you add up all the money you spend on repellants and products to kill them. This product deletes the population by breaking the reproduction cycle. Simple!!! I love it. I can actually use my yard again.

sir ... if i do the trap for

sir ... if i do the trap for bottle 600ml, any problem or not? because i try, but no mosquito in trap...can u comment

sir.. can't i try to put

sir.. can't i try to put this trap only 1 week?

To the person worried about

To the person worried about CO2, stop breathing, you and everyone else breaths out CO2. CO2 is heavier than air, so using the trap inside or outside should work fine, if you have kids, make it a home science project, record and monitor the results, and return here to list them. In theory a candle would work to create CO2 if you do not have yeast, but you have to find a way to prevent the plastic bottle from melting. You could also fashion a tube from a beer or wine fermenter, and route it into your 2l bottle, that would be a good excuse to make some home brew. Also mosquitos are very sensitive to the 'smell of CO2, they are attracted to very small concentrations.

send me a reply to this email

send me a reply to this email

I book marked this article

I book marked this article almost 2 years ago, but I'm only finally going to try it now because I've moved into a mosquito infested insect hive. :(

Thanks!

The only thing that I have

The only thing that I have found to kill out roaches is a product called combat gel. I got it at wal-mart for about 10.00 dollars a tube, followed the instructions. Within a few day the roaches was gone. It has been two years and I haven't seen a roach since then. This stuff really works well. It only took about 24 hours and there was hardly any roaches and at the end of a week, never seen another!

i don't have yeast but i

i don't have yeast but i just got home and there are SWARMS of mosquitoes! do i have to use yeast or is there another substitute?!

are mosquitoes too stupid to

are mosquitoes too stupid to get in this trap

This is a trap for indoor

This is a trap for indoor use only. It does not generate nearly enough CO2 to compete with the broad areas of an outdoor trap.

how this trap will kill

how this trap will kill mosquitoes and is there any title for this work. (the title must dont have the word "trap").

did this work well? and does

did this work well? and does it give off co2? problem in my sons room with mosquitos but i was worried about co2.

Put up a screen or close the

Put up a screen or close the window.

I've had this set outside

I've had this set outside for about 1 hour and it's absolutely full of ants. Yesterday I did a spray of permithrin 10% (found at local feed store) around the house and have noticed considerably less mosquitoes. Usually a good spray every month of Cedarcide keeps them out of the yard. But, I think most of my problems are coming from neighbors not tending to their pools and bird baths.

Well, I made 2. One went on

Well, I made 2. One went on the front deck and the other went on the back deck. I caught more mosquitos in the back with both the trap and the soap dish. I can't say it's going to better our outdoor life because there are just so many this year. I can't even open the door to get inside without having to kill all the ones that snuck in!

I think the best advice I got so far was: "The only successful way to get rid of mosquitos is to kill yourself" Lmao, not an option, but the laughing I did was very therapeutic and it took my mind off the blasted itching!

Mine is working great! I'll

Mine is working great! I'll let you know how many I caught by tomorrow, and I also put out a dish with soap naxt to it just to compare, and that is working like a charm!
Just to note, I loved reading all your postings, I laughed my behind off on some and swore at 2, but not everyone in perfect I guess. As for the '#103 - me' posting, baking soda is what you want, not baking powder. Thanks a bunch to all of you.

bulletproof your

bulletproof your site...

all it takes is one idiot to file a complaint...and...well...

I have tried this and while

I have tried this and while I caught a few mosquitoes, my megacatch premier trap did a much better job. If you can afford it, try one of those.

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It does not work. Not one

It does not work. Not one single mosquito trapped in it. Is it a big con job of April 1st?

What makes the mosquito not

What makes the mosquito not from flying back out? If this bottle is opened to attract the mosquito's, how come they can't fly back out afterwards???

Also if trying to cover a backyard, will a bigger bottle with much more yeast work to cover about 1/4 - 1/2 acre of land?

Yes, this blog is high

Yes, this blog is high quility for bloggers, I think it is one of the top blogs worldwide.

Eric Hopefully you can find

Eric

Hopefully you can find the time to visit my site. I've learned so much from this blog.

Eric The pen is really

Eric

The pen is really mightier than the sword, as you have proven here.

Hi Dear Friend I am

Hi
Dear Friend
I am jad's.We are live in Iran.Mr jadi is very profetional about innovation.He wants help to learning students.Mr jadi and I need money to found a company about innovation.Please clear this blur for us.I write this letter because Mr jadi cannot understand english compeltely and he trust me.
I am looking forward to hearing from you as soon as possible
Javad Hamzeh

http://jaddi.ir/

very good please come to my

very good
please come to my weblog

For Sue: could you please

For Sue:
could you please give more details on "Lurex" (R): what exactly is it, where you can buy it and what its use is.
Thank you.
Tiger mosquitoes have invaded us too :-(
I also have quite some problems with big flies that bite my donkeys (don't know how you call them in English). Their bite is VERY harmful for humans too !
Any experience and suggestions for traps and how to attract these insects into traps ?
Thanks everybody

Would this trap kill the

Would this trap kill the mosquitoes?

Also, does thid really work?

Also, does thid really work? Cuz my research plan is due tomorrow.

How does this "machine" keep

How does this "machine" keep the mosquitoes trapped inside? I am doing a science fair project, and I need to know quickly. Does the yeast kill them or what? I'm confused.

I haven´t tested this

I haven´t tested this project yet, but I think it uses the same idea of some fish traps. The stupid mosquito comes in but doesn´t have the ability to get out by the same way, because it tries to scape through the edges of the bottle not findint the hole.

I'm going to try this gaget

I'm going to try this gaget and see how well it works. But my real problem is no-see-um bugs. Does anyone have an inexpensive solution for no-see-um's? Thanks, Zippy

This DIY mosquito trap was

This DIY mosquito trap was developed by a class in Taiwan through trial and error. Having been there, we can tell you the humidity definitely can create some nasty blood sucking buggers. This method is a lot cheaper than buying...

ear sir We would like to

ear sir
We would like to introduce very new type of mosquito trap which is applied new technologies with non-toxic and highly effective performance.
-decoying mosquitoes by 3 enticements, co2(which is generated from photocatalysis with tio2), near ultraviolet rays and heat by fluorescent lamps (mosquitoes like these)
-once the mosquitoes comes to this machine,a strong ventilator captures them into a steel net through the inhaling fan.
-captured mosquitoes can't escape from the net,where they dehydrate and die
-no need to change or refill Co2,because tio2 can produce co2 semi-permanently.
-application,outdoor and indoor
-small amount of AC power(28w)-size 250mmx300mm
-Quiet,no zapping
best regard
Mr liu
www.pestbegone.net

Nick: If you're worried

Nick: If you're worried about all the little fishes getting a yeast infections, just add a little CRANBERRY JUICE to the mixture before you toss it out: Cranberry juice is great for preventing yeast infections!

Sorry all, I just couldn't resist. :-)

Seriously, wild yeast are a natural part of life on earth; and in fact, right now there are a whole lot of yeast spores just floating in the air around you. In fact, if you left the sugar mixture out overnight without adding ANY yeast, you'd likely still get enough wild yeast landing in the mixture for it to ferment, all on its own. Adding packaged yeast just speeds up this very natural process.

Thank you Sam, and, and all (especially those brilliant kids in the Taiwan classroom!) for this very interesting and useful mosquito trap idea.

Happy hunting!

Back to the topic of

Back to the topic of building a DIY mosquito trap: I'm going to try this. It is just a variation of a traditional fruit fly trap that uses a piece of banana, apple &/or cider vinegar to lure the fruit flies. I've done that and it works.

My mosquito problem is Asian Tiger Mosquitos that feed during the daytime and lay eggs above the water line in containers, rain gutters, puddles, storm drains and tree hollows. It only takes about 1/4 cup of water for the larvae to grow into adults.

If the CO2 lure on my trap doesn't work to catch the tiger mosquitoes, as some people on here have indicated, I'll buy some LUREX (R)and add to it. That bait is about $25- $30 and is sold for the highest-rated commercial mosquito trap. It is reported to be the best for the tiger mosquitoes.

The mosquito trap machines cost $300 or more and additionally require a butane tank to generate the CO2. Butane is a fossil fuel, so burning it adds to greenhouse gas emissions. Yeast CO2 is a renewable source because it comes from plants.

Wish me luck!

CO2 is CO2 it doesn't matter

CO2 is CO2 it doesn't matter what it comes from. Oil, Coal, or burning wood, are all the same. Natural gasses porpane, natural gas, methane are all from decomposition of organics, coal, oil, and tars are from plants. All plants will release all the CO2 they have absorbed after they die. Either from burning or rotting. Coal oil etc are resevoirs of carbon energy absorbed by plants and animals. CO2 makes up less than .1% of the earth's atmosphere. H2O is 1700 times more a green house gas. Yes, water holds more energy in our atmosphere than CO2. Average H2O in atmosphere is 30%. 300 times more water in the atmosphere holding in 300x1700=510,000 times more heat! Remeber a green house gas is a gas made out of 3 or more atoms containing 2 or more elements. A sprinkler system adds more green house gass to the atmoshpere than a car or truck. Think about that. You are not going to wipe the planet out with the CO2 you create in your mosquito trap. You may keep from getting a very bad disease by killing as many mosquitos as possible. Maybe even save a life or two. Wait untill PETA people catch this thread, Mosquitos have rights too, to them.

Nick, baking yeast and

Nick, baking yeast and brewers yeast are not contagions and they won't grow and multiply unless they have a concentrated source of sugar, moisture and a temperature of around 105 degrees F (40C). They won't contaminate the environment and they don't use up aquatic O2.

Pouring yeast down a drain is recommended for a septic tank, and it won't affect a sewage treatment plant. If your drains go directly into a river without treatment then yeast is the least of your pollution problems.

Before you begin, have you

Before you begin, have you ever ask yourself what is a "yeast"? Most people here start without thinking much of how yeast will affect our surrounding eco-system. I do hope most people will kill of the yeast mixture by either boiling it or add in enough chlorin solution to kill it before dumping it into the drain. This is to prevent the yeast from growing once it reach our river. For those who dump the solution without much thoughts might regrets their action when their river are full of fishes with yeast infection and when yeast thrive, they used up Oxygen which will eventually lower the number of fishes live in our river ssytem.

Chlorine is far worse than

Chlorine is far worse than yeast. Yeast is natural and wild yeast spors are in the air already. Chlorine is a strong oxidizor, and will kill plants and natural bacteria needed in an ecosystem. Stronger wild yeast and bacteria will consume the yeast if you just dumped it into a pond. Along with any left over sugars. Neither will hurt your fish. Chlorine will kill fish. Put a gold fish in a swimming pool. it's time is measured now. The stronger the chlorine the shorter it's life. Chlorine is a poisen.

One other quick observation.

One other quick observation. Not all mosquitoes bite. In fact, most do not. Only the females will bite, and only a few species. I would expect that if they aren't biting female mosquitoes then they are probably not going to be attracted to the CO2 from the trap.

Females only bite to gain enough energy to lay eggs.

Maybe you should think about

Maybe you should think about your observations a little longer. Why would we care if the male "skeeter" is or isn't attracted to the trap since they don't feed on blood?

Someone brought up the issue

Someone brought up the issue of yellow jackets. There is a VERY easy way to kill off yellow jackets and ANY other stinging flying insects without any chemicals.
Soapy water! A little dish washing detergent in water and you can kill em by the hundreds! Put the mixture in a garden sprayer for long range attacks of wasp nests. (Use the stream setting on your sprayer). Normally, water hits flying insects (bees, hornets, wasps) and bounces off due to their waxy coating. If you put a little soap in that water, it will allow the water to stick to them. Instantly they can't fly and will fall to the ground. They usually suffocate very quickly because such insects breath through their exoskeleton. This will often work just as fast as poisions or gasoline without being dangerous or flamable. Use it around kids, in playgrounds or anywhere you are concerned about chemicals.

Also, to kill underground yellow jackets: Find the hole during the day time. (Be careful!) Then, at night, mix up 3 gallons of scalding hot soapy water and use a funnel to pour it into the hole. I always wait until at least 2 hours after dark. 11pm works great. You can repeat the treatment if necessary, some very large colonies may need double doses. Sometimes they have pockets in there that don't get flooded by the soapy water- so sometimes they need a second dose.
Best thing- NO dangerous chemicals! And I've never seen them come out after dark. Seems to be safe to approach after dark.

I hope someone figures out

I hope someone figures out how to trap mosquitos, but I have a sure fire way to trap roaches here in California. I noticed that they love ritz crackers. I decided to lay out a piece of duct tape (sticky side up) under my sink where I had seen some - then i made a very narrow sprinkling of crushed ritz down the center of my strip of duct tape. Yuck! in the morning I had a whole tape full of roaches that couldn't get away. I let my hubby dispose of them. We kept doing this till we didn't catch any more. Give it a try.... Another good use for Duct Tape. If only I could attract mosquitoes to it!

When you look at the propane

When you look at the propane powered traps that simulate 3 things, heat, CO2, and Plant chemicals. Then a vacuum to such to lil buggers into the trap when they get close enough. The best ones I have seen emulate a cow. It would seem to me that if you could devise a way to replicate the same things a propane one does you could build a very effective trap. Ideally one would make something that does not require electricity or gas to operate, and it should be able to handle outdoor elements, such as have rain or hot days. It should also be able to operate for days before needing maintenance.

mine caught many slugs, but

mine caught many slugs, but not mosquitos, in the charlotte, nc area.

One of the best

One of the best biodegradable wasp, yellowjacket killers (nest and all) is a 1 qt. squeeze bottle (a good pump, spray bottle from the hardware store is also quite useful).

Fill bottle 3/4 full with warm water, add half to a full cup of dishwashing liquid, fill bottle the rest of the way with more water (in this order there is less suds to deal with).

With the spray bottle, do not set it to jet stream, but instead to spreading spray, almost a mist. For a sqeeze bottle you will do a dowsing action. The object of the coverage is to coat the wasps and their nest with the dishwashing liquid solution. It smothers their breathing capability and kills them instantly while not harming the structure or plants around the area.

When I was a kid, we made

When I was a kid, we made traps like this sans yeast. I think we'd just leave 1-2" of cola in the bottom of the bottle, cut and invert the top of the bottle, and set it out.

I recall having mild success with them with trapping flies.

Putting some rocks or something in the bottom might not hurt either...just to weigh down the bottle from blowing away.

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