I was wondering if chickens are ok with pyrethrum. I have a product that works great for insects and pests on other animals but I know that chickens can be sensitive to some stuff that might seem fine. It is a 1% -2% pyrethrum mix in Diatomaceous Earth powder. Have any of you used this on your birds? I am wanting to dust my birds for mites and lice and also their coop. I have plain DE but the stuff with Pyrethrum works really fast and nothing gets away from that....