For treatment I”m going to add a link which will take you to another post about mites. Someone listed a bunch of great mite products on there and what they look like on the bottle.
Permethrin liquid , I use for my coop and dilute into water and spray everywhere in the coop. I make it pretty...
Yes, they can make them anemic , cause poor egg production due to stress. If you see a few mites, always assume there is a lot more unseen. They hide really well! In the coops and birds. DE doesn’t stop an infestation.