There are several things I've used over time, to treat the roosts. I like the Adams flea, and tick spray. It's permethrin, so it's one of the safer things to use. Remove food, water, etc., and then spray from top to bottom, and don't forget the underside of the roost. I've also dusted my roosts with Sevin dust at times. I have a wool glove, that I use for this purpose. I rotate off between them, so the creepy crawlies don't build a resistance.
