Now that I googled around a bit, I wonder just how much would make it into an egg. @aart piqued my curiosity with her statement about it mostly staying on the skin and not entering the blood (since my understanding was that it DID enter the blood).
Check this out....
"The amount of fipronil...
I was talking to the person from Europe who was struggling to find any sort of product that would help them with their issue.
As for effectiveness on roost mites, if the roost mite bites the chicken it would work just the same as any other treatment of the bird. The mechanism of action of the...
Did not read the 40 pages, so sorry if this was mentioned. Do you have access to fipronil? Usually sold as a flea and tick treatment for dogs/cats. That will work on lice and mites on the birds.