One of the methods to get rid of that annoying fly is to hang a bag of water outside the porch.
A very simple and common question: What do flies do when perching on us?
In fact the hateful flies are more dangerous than what people imagine, they are filthy, spreading infectious diseases.
This is the prediction of some scientists and businesses, when the fly larvae are bred, raised at the ground, can provide a quantity of food protein for fish and other animals.
Every time a fly came, they could leave footprints, feces and even vomit filled with their pathogens.
Scientists sequenced the entire home fly genome and declared their discovery will help discover new ways to treat human diseases.