Terry, I forget where you live but would suggest a couple of things that you can still do at this point.

Your bottom plate, pick up some wood preserative like thompsons and cover the bottom plate and even up the studs for a couple of feet, then get some tar paper and wrap it from the inside under the plate and outside, at least 16" on the wall. Even the tar used on concrete walls would work and probably keep the bugs out of it also, if you go the tar routs, seal it the best you can after with a vapor barrier.The spruce/fir will not last very long once the moisture gets at it.

Andy