I found garden & poultry dust with permethrin so I cleaned everything out of two coops (1 main coop and 1 smaller grow out) dusted the interior especially the roosting bars and nesting boxes put down new bedding (I use Koop Clean) the coop was then shut up and I gathered the hens into the run and one by one caught them and dusted them! Did it over a pan of wood ash and after I dusted I added a little ash. I actually didn't see much evidence of lice just on the on hen. I will check her tomorrow and use the VCO on her if I need to, ran out of time and we had a pop up thunderstorm so I had to act fast! Hoping this works! I have more ash that I will sift through tomorrow and add to the run & dusting areas!