1. Prepare the attractant mixture
Fill the disposable cup with water a little more than halfway. Add the soap powder and mix well. Then add the vinegar and sugar, stirring again until integrated.
2. Make the trap cover
Cut a sheet of paper into a circular shape, large enough to cover the mouth of the glass. In the center of the circle, make a large hole.
3. Give it the irresistible touch
Brush both sides of the paper with margarine and sprinkle with sugar. This sweet scent is key to attracting flies.
