Treat according to size. If the 6 week old don't have any mites give them a little spray to ward them off just on case.
I would spray momma but not babies and keep an eye for mites. A broody can be more susceptible because she is more stationary and less likely to dust bathe with little ones.
I would spray momma but not babies and keep an eye for mites. A broody can be more susceptible because she is more stationary and less likely to dust bathe with little ones.