Recently we have been plagued by fruit flies in our kitchen. A combination of summer and our habit of composting causes this. We wanted a way to deal with them that was cheap and didn’t use toxic chemicals so I made this trap.
As you can see it was very effective. Take a mason jar and pour a little bit of apple cider vinegar in. Take a small piece of fruit, I used banana, and put it in, make sure part of it sticks out of the vinegar. Put a drop of castile soap in to break the water tension. I used our diluted lavender soap that we keep in the shower and it didn’t seem to cause a problem. Then take a piece of aluminum foil and put it over the opening of the jar, poke a few holes in it with a skewer or fork and leave it near where the most fruit flies are. It also helps to remove any other attractant, so our bananas are in the refrigerator for now.