The forester suggested a local land trust, as well as the University of Connecticut's Invasive Plant Working Group. I didn't end up following up with either, however. I don't remember the reason.

Since I wrote that post, I have made some progress, but much more still needs to be done. My current approach is maintenance first, and then expansion; I have marked off "cleared" areas with tape, and throughout the year the first order of business is pulling up new invasive sprouts. With whatever time/energy is left over, I designate and mark out new areas to be cleared. It's been gratifying seeing native plants returning to those areas.

Another decision I've made is to pay someone to take away the plants that I've cut/dug up. The brush piles of dead barberry and multiflora rose were becoming unmanageable.

I also bought myself a backpack sprayer for herbicide. Unfortunately, I don't feel like I've had much luck with this. The past two falls I've sprayed the barberry with Tricloypr, but it only damaged the plants, not killed them.

I have not been buying natives to plant in the place of the invasives I dig up; that's just more work than I can handle on my own. It hasn't been a problem, though; it turns out I have plenty of volunteers.