Tom Kershner, Natural Lands Trust's arborist and hazard-tree coordinator scales an ailanthus tree recently found to be on a boundary of Crow's Nest Preserve. Also called tree-of-heaven, ailanthus (Ailanthus altissima) is very invasive, and a weak-wooded species. This one was growing over a neighbor's garage and so it had to be sectioned down with rope one piece at a time.
Sometimes removing a tree improves the appearance as well as the ecosystem function of a site as much as planting one. But we are also replanting this woods edge with native shrubs: witchhazel, chokeberry, and silky dogwood.