best month to kill "tree of heaven"
I posted on here a month or so back about numerous "trees of heaven" I have bordering my property. During the discussion was varying ways to kill this invasive species. I recall someone stating that cutting down and painting the stump with FULL STRENGTH roundup concentrate would likely work, but needed to be done in the fall, because that's when this tree is bringing nutrients down to the roots.
Can anyone attest to that? Specifically what month during the fall?, or is it THAT important? I would imagine before the leaves drop, correct?