It’s amazing how diatomaceous earth (DE) solved the constant lice infestation problems I was having with my small flock of chickens.
All I did was put a pound of DE in a dishpan-size container and put it in their coop. The chickens dusted in it, and the parasite problems went away soon after. I had tried rotenone powder and bathing the chickens in tea tree oil soap — both only worked temporarily.
The bag of DE was $2.95 at our feed store and lasted at least a year. The lovely thing about this method is that the chickens take care of the dusting on their own.
Rose Prairie, British Columbia