Thanks i will check that out! I put a box fan on the pen the birds like it and blows the flies away. Hate to see my electric bill at the end of the month!
I tried the vanilla trees from walmart auto section. It does not work, same amount of flies. Can you post a picture of the package so i can buy the same brand and try again? The only fly remedy that worked for me years back was cykick insecticide, but ot killed my ladybugs, praying mantis...