kassward
In the Brooder
I only use the permethrin to treat the coop after a clean out, I use sevin dust or ivermectin directly on the birds, so I can't help you there. I do use the concentrate, 10 ML (cc) per quart of water and spray the coop down good especially cracks after I scraped out all the old bedding. I assume you COULD do a quick spray under the tail of each bird. But it's petroleum based and quite smelly, honestly I would hesitate to directly treat a bird with it. Grab some sevin dust or poultry dust next time you're at a hardware store or feed store, pour it in an old nylon stocking, and pop it under each wing and under the tail.