I made the 2L bottle fly trap about 5 days ago and caught absolutely nothing! Broke out the SSS and sprayed it on the outside of coop and some boards I have up against run blocking sun from hitting the water and feed, flies took a hike. I just go out and spray it in the morning when the girls come out and it keeps them down, not gone, but down.
Contemplating putting the run in a specific spot, enclosing the bottom with wire and putting a layer of pine shavings and DE down, then layer it. Move the run and coop to a new spot, take old pine shavings and place in compost bin. Instead of just having the coop and run on the yard/grass/dirt; since the droppings will dry up better with the pine absorbing most of the moisture. Maybe this will help more. I don't know, we will try it.
We only have 5 girls and they are only 3.5 mos old. They'll be laying soon enough and I try to keep everything as clean as possible. I want to be considerate of the neighbors so we don't get any complaints. Not too sure if we are legal or outlaws as our ordinance says we are outlaws, but the stipulation says we aren't. So I go with the latter of the two.