I have a half-acre of woods, a mix of mostly hickory, and maple: both red and Norway. There are not many younger trees, which I attribute in part to their being smothered by the Norway maples, which I’ve decided to remove. The younger Norway maples I will have no problem removing myself, but there are two larger trees: one about 50 ft tall, the other 40 ft; both about 12-14” in diameter at the base. I am reluctant to have them felled because I am pretty sure that in doing so, they will damage quite a few other trees. Is girdling the best alternative? I wonder about using glyphosate because I’ve read that it can be transmitted via roots from one tree to a neighboring tree. I haven’t yet gotten a quote from an arborist to take down the trees but I have a feeling it might be more than I would want to spend; the location is not accessible by a bucket truck. Any advice would be appreciated.