A person has allies, destroying harmful flies who are they?

Flies harm a person not only by their annoying buzzing sound, but also by the fact that on their paws, which have numerous hairs, they carry pathogenic microbes, flying from one place to another. Man fights in various ways with flies, but there are some predatory plants that can feed on these insects. They emit an aroma attractive to insects, then the victim sits on the flower, and it closes, then the process of digestion begins. Frogs and toads also feed on flies.