Saturday, June 2, 2012

An Ongoing Collection Of Homemade Mosquito Repellants and Traps

We're having the worst mosquito season I've seen in a while so here are a few solutions:

This one comes via Laura over at Life with Reno Rabbits and it's originally From Thrifty Fun.

Making a Mosquito Trap

mosquito trap
Because mosquitoes are attracted to the CO2 we breathe out, I started looking for ideas that used CO2 as the bait for the mosquito trap. I did think of dry ice but it does dissipate fairly quickly.
I found a cached link on Google here. It seems to be active again now. I've rewritten the instructions some and hopefully it will work as well.
Thanks to the students for their hard work on this project. I've used some of their photos for illustration.


  • 1 2 liter soda bottle
  • a sharp knife
  • black paper or black landscaping cloth
  • tape
  • candy thermometer
Take a 2 liter soda bottle. Cut off the top right below where it starts to narrow for the top, invert and place inside the lower half.
Make a simple sugar syrup.


  • 1 cup sugar
  • 1 cup water
  • 2 cups cool water
  • 1 tsp. active dry yeast


Bring 1 cup of the water to a boil.
Dissolve the sugar into the boiling water.
Once the sugar is dissolved completely, remove the pan from the heat. Stir in 2 cups cool water, stir well.
Check the temperature of the syrup to make sure it is no hotter than 90 degrees F, if hotter, let cool to 90 degrees F, add 1 tsp. active dry yeast, no need to mix. Put syrup in the bottom part of the bottle, using the cut off neck piece, leave in place.
Be sure to seal the two parts of the bottle with the tape. The fermenting yeast will release carbon dioxide. Put black paper around the bottle since mosquitoes like dark places and carbon dioxide. This mosquito trap will then start working.
TIPS: Put the trap in a 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.
mt1-226x139.jpg Making A Mosquito Trap

Here's a slideshow of 11 methods, some worked and some didn't. They explain.


Jean Spitzer said...

I'm trying out the mosquito repellant. I smell a bit like salad dressing at first, but then it evaporates.

Lowell said...

Fortunately, we have not had many mosquitoes up 'til now, but they do spray here on a regular basis. As you may know the mosquito is the Minnesota state bird and I remember how they ofter tried to carry me away while wandering about the Minnesota woods!

Paula said...

Jean, I agree, it's a bit vinegary but so far, so good.

Lowell, it was a mild winter so they're plentiful. And yes, I remember camping trips in Minnesota and worrying I might get carried off for an entree.

Jean Spitzer said...

I like it and so does my husband. It is actually good for the skin, to boot.