So as much as i hate to say it my chicken house is infested. I bought Permectrin ll concentrate. I am going to remove all the birds from the barn and put them in wire cages till i get it cleaned and sprayed. I want to spray it from ceiling to floor. Then i want to treat each bird before it goes back in the barn. I bought the powder permectrin to treat the birds with. I will not put any litter in the barn as i want to re-clean and spray in a week and retreat the birds. This is my first infestation with lice or mites so any help or advice will help. I will also add the barns are on skids and sit about 8 inches off the ground. should i fire up the tractor and move the barns and treat the ground under them.