As far as a non poisonous solution: I've started using the Fly predators from Spalding labs (I learned about it here on BYC). I think they work best if started early in the 'fly season', rather than mid summer, but it's something to investigate.I tried the vanilla trees from walmart auto section. It does not work, same amount of flies. Can you post a pict
ure 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 and all the bees . It took five years to detox my front porch area now i have a healthy thriving bee hive but flies as well. I would love a non poisonous solution to flies, thanks!
And since the Fly predators take about a month to 'ramp up' (and maybe even longer), I've hung a fly trap that emits an attractive odor to flies (eg, it stinks). They crawl in, but can't get out.
This has worked VERY well, I never see bees in it, only flies.
If you use one, be sure to hang it on the far end of the coop/run or even your yard; away from where you mainly hang out.
But these work! I'll continue to use them as long as needed.
I have the vanilla scented trees; they help slightly, but are not enough by themselves.
Other tips: stay on top of cleaning up chicken poop. Also, flies like moist, not dry soil/bedding.
The Spalding labs web site has a lot of good info as well.