18 how to get rid of flies outside ideas

Old School Fly Control That Works I am not sure if it is just a problem this year but the flies have been on the apocalyptic scale around my house. I can’t seem to get rid of them no matter what I spray or how many sticky fly traps I hang up. I was at my whits end when I found this amazing old sch Old School Fly Control That Works. his method originated from Spain where they have a big fish trade. This trap works so well the big companies hate it