The Best Fly Trap

I have tried many type of fly traps, some I built myself and some commercial ones,

eventually i feel that this one works the best.

ready to start?

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Prepare Your Materials and Ingredients

These are the stuff you need -

Hardware Materials:

Hot glue gun



Plastic wire

Plastic bottle

Ingredients for the blend:

1 cup of warm water

5 tablespoon of white sugar

1 teaspoon of dry yeast

Step 2: Prepare the Plastic Bottle and the Washer

Prepare the plastic bottle

1) take the plastic bottle and cut with the knife the top third.

2) makes 3 holes in equal spacing for the plastic wire.

Prepare the washer with the plastic wires

1)cut 3 pics of the plastic wire at the same length about 65cm(2.1ft).

2)tie the wires to the washer, it is going to be the trap base to tie it in equal spacing.

Step 3: Construct the Bottle With the Wires and Add the Blend

1) position the washer at the bottom of the bottle,

and pull the wire through plastic bottle holes from outside to inside of the bottle.

last verify that the washer sits in the center of the bottle bottom.

2) now it's time to prepare the blend that going to attract the flyes

fill the plastic bottle about one glass of warm water about 45Celsius or 113Fahrenheit.

add the 1 teaspoon of yeast and 5 tablespoon of white sugar, and mix it well.

Step 4: Glue the Bottle and Your Fly Trap Is Ready

Great! your trap is almost ready, we just need to glue it.

1)take the bottle small part and turning over into the bottle base.

2)use your hot glue gun to join the two bottle parts together. make sure you glue it well and don't leave open holes.

3)let it dry for 5 minutes and Congratulation!!! you just create the best fly trap.

4)find a sunny spot and hang your trap,

you''ll be surprise how many flies and mosquitoes it attracts.

Outdoor Workshop Contest

Participated in the
Outdoor Workshop Contest

Be the First to Share


    • CNC Contest

      CNC Contest
    • Teacher Contest

      Teacher Contest
    • Maps Challenge

      Maps Challenge

    8 Discussions


    3 years ago

    We have been camping all week (NE Texas) so I made this and it did not catch one fly! I do not understand it :(


    5 years ago on Introduction

    If you use some tape to put both parts together instead to glue it will be easier to clean it for the next time.

    1 reply

    5 years ago on Introduction

    Maybe you could put a hat or roof over it, to avoid the rain fill it with water.


    5 years ago on Introduction

    I was using a shot glass of tequila with a paper cone on top for awhile, it seemed to work pretty well. I bet this works a good deal better and doesn't end up being a waste of fine liquor...!


    5 years ago on Introduction

    bait mixture works for about 3-4 weeks it depend on few factors - weather, yeast and sugar type, and water level.
    the fly attracted to yeast smell and carbon dioxide it releases
    as long as the yeast are living it will keep attract the flies mite be also longer then 4 weeks.


    How long does it take for the bait mixture go bad and does it effect the efficiency? Does it smell when it goes bad?

    1 reply

    Reply 5 years ago

    In my hot shop in the summer they never really smell but go bad in about 2 weeks. I find fly's stop going in them before that time.