The measure is aimed at exterminating a flesh-eating bug that could devastate the country’s beef industry US authorities are preparing to release billions of flies from airplanes over Mexico and southern Texas to stop the spread of a dangerous parasite, the Associated Press (AP) has reported. The move aims to protect livestock, wildlife, and household pets from a flesh-eating maggot. Unlike most flies that feed on rotting or dead tissue, the screwworm fly poses a far greater threat as it lays