Flies cannot resist the aroma produced by fermentation. In fact, the product used is based on fermented apples, so flies cannot keep their distance from the vinegar.
For better effectiveness, you can heat the apple cider vinegar as the heat releases the vinegar’s scent.
You’ll need a glass and a funnel-shaped rolled piece of paper, 12 cl of apple cider vinegar, a few drops of dish soap, and you can decide whether or not to add a piece of ripe fruit.
After heating the apple cider vinegar, pour it into the glass and add the drops of dish soap. The latter reduces the surface tension of the vinegar.
Then place the funnel in the glass, with a hole at the bottom to let the flies in. Once they’re inside, they can’t get out and will drown.
If they don’t drown, you can place the glass in the freezer for 20 minutes.
The Fruit Trap consists of the following ingredients: plastic wrap, a glass, ripe fruits, a toothpick, and soapy water.
Put the fruit pieces in the glass and seal it with the plastic wrap pierced with a toothpick.
Place it at strategic points in the house so the flies enter through the holes and can’t get out. Finally, immerse the glass full of flies in a container of hot soapy water for 10 minutes.