I would say that NOTHING at this point is overkill. After my experience with millions of mites, I've been trying everything (as you saw in my previous post). I like DT, but it didn't help once the mite population super-exploded! Will post an update soon to let everyone know what results I'm having with the newest products.So far the dusting of my chickened, isolating the new chicken for a couple of days, cleaning out the coop and spraying has worked have not seen anymore. I will Dust my chickens one more time as recommended on the poultry dust bottle and keep my fingers crossed.
I think once a month I will dust my chickens with DT and put some in the dusting box along with in the run as a prevention. Does anyone els do that or will it be over kill?