Hello, For me, this is not a hard decieion. I would extract now & get the mite treatment in place as soon as possible. Whatever is left of the honey flow can be the bees' winter stores. If the mite problem is handled, the hives will go into winter fat & happy, ready for a good spring buildup, far better than starting out anew with packages from which you are unlikely to get a honey surplus in the first year. If you save these hives they should start out strong next spring -- but then, I'm one of those who hates to let the bees die. . . Fred