How to Build a Horsefly Trap

Written by j.s. copper
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The horsefly is a particularly nasty insect. Known for biting and biting hard, horseflies tend to be attracted to humans and domesticated animals such as horses, cattle and dogs. There is no mistaking a bite from a horsefly, and just one is one too many. However, using a few household supplies, you can create an easy trap that attracts the flies and locks them in, leaving you and your animals to roam in peace.

Skill level:

Things you need

  • 2-litre soda bottle
  • 1/2 cup sugar
  • 1/2 cup syrup
  • 1/2 cup apple cider vinegar
  • Water
  • Duct tape

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  1. 1

    Cut the top quarter of the soda bottle off. Be sure to cut a straight line around the diameter of the bottle, as you are going to need the top.

  2. 2

    In the bottom portion of the plastic bottle, combine the sugar, syrup and vinegar. Add water to fill the bottom portion halfway. Use a spoon to stir the ingredients together, creating the bait.

  3. 3

    Invert the top of the bottle and lay it inside the bottom, creating a funnel into the bait. Use duct tape to seal the two pieces together.

  4. 4

    Place the trap in an area that is highly trafficked by horseflies.

Tips and warnings

  • You may need to create a couple traps if you have a particularly bad horsefly problem.
  • As the flies build up, the smell of the trap will become increasingly unpleasant. If you can stand the smell, the pungent odour will only attract more flies to the trap.

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