Permethrin dunk

[Swiftbug2]

Been working on treating for hen fleas. Was considering doing a permethrin dunk on my hens. Got 23 to do. What i was wondering is how much permethrin per gallon or so for a dunk. Find plenty on sprays but not much for dunking

 

[Debbie292d]

This article has the explanation and the dosage:

https://www.backyardchickens.com/ar...-fleas-dealing-with-external-parasites.74599/