I have a mere 2 acres to manage. Along with adding in some black walnuts for historical/ecological interest, I'd like to manage for hardwoods. I understand that black locust is introduced here, albeit from not that far away (Appalachians/PA) but that it's a legume and so fixes nitrogen from the air and thus grows quickly. However- they don't seem to get that big here, and there is concern of locust borers (do we have them in New England?). I have lots of red oak, white oak, white pine (I'm taking it out slowly), red maple, some pignut, and good understory bushes (blueberries, etc.). As I take out selected trees- what should I plant back for fastest hardwood growth? White ash? Black Locust? I can provide a little natural fertilizer/compost each year to new plantings.