I don't know about turkeys but my goose had bird lice and I tried to go the no chemical way and bath him in dawn dish soap (which my boyfriend thought was absolutely hilarious) The lice showed back up. I had read about and found this stuff called "Garden and Poultry Dust" at Tractor supply. I think it was a thread on here that said the easiest way is to use a pair of panty hose or a knee high. It worked great! I pored some of the powder in to the toe and tied a knot above it. Then I just dust my goose like it was a make-up powdered puff or something like that. It took one application and I haven't had a bit of trouble with lice since. Hope that helps!
get some poultry dust (lice, fowl lice) find the spot that they dust themselves and add 1/2 cup of the dust mix it in the dry soil, they will dust themselves . it needs to stay dry or they won't use it, then I worm them in there water!!!!! tom!!!!!!!!!