I've just been using neem oil. I ordered a 1 gallon sprayer which should arrive either today or tomorrow. I have 5M extract. I don't want to over-do the neem oil. Either tonight or tomorrow I'll hit them hard with the neem/extract/soap combo. It seems like an insanely hard battle to truly win. From what I understand they're pretty much impervious to most forms of treatment while in the egg stage so it has to be done often. There are so many misc. plants around my pepper plants. It's virtually impossible to get the undersides of all of the leaves of all of the plants.
If even a few of them survive on either the pepper plants or the surrounding plants they'll be back. The new growth I'm getting after pruning is abnormal. I don't even know if it's because the neem oil isn't working or if it's due to the residual toxins from the mites' saliva.
What happens come winter? Will any fall survivors come back in the spring?