You could try contacting this business in USA and ask them if they have predatory mites for Northern fowl mites.
https://www.rinconvitova.com/predator mite.htm
I’ve never used this company as I am in Spain, but was doing some research for a different thread and found it.
Worth a try!
Good luck!
https://www.rinconvitova.com/predator mite.htm
I’ve never used this company as I am in Spain, but was doing some research for a different thread and found it.
Worth a try!
Good luck!