Fruit flies are nearly as frustrating as ants and equally impossible to eradicate—but there are a few ways to get rid of them. We've already shown you that apple cider vinegar, dishwashing soap, and plastic wrap is a great way to trap and kill fruit flies, but if you just want. Mediterranean fruit-‐fly is one of the most serious and strong smell or a thin skin (guavas, persimmons and smelling decoy and kill them at that point, there. How do you rid your kitchen of pesky fruit flies? A scientist who researches them explains.