check this out...works lie a charm for me!!!! https://www.backyardchickens.com/forum/viewtopic.php?id=547632
Quote:something in the smell of sawdust ? ? Possibly, though I think they scratch through it and the poop falls under it so the flies have less fresh doo to lay eggs in.
I saw the vanilla freshener thread and bought a pack of 3 for about $2 in Walmart. My goodness, I never saw a fly in the coop again!
When ever I start to notice a slight increase in the fly numbers, mainly Ive found to be caused by excess moisture around waterers and pans. I just sprinkle a liberal dose of DE around the pen's and WA-LA no more flies.