Photo Dave Jackson Leaf Margin.
Stump treatment of tree-of-heaven will keep the stump from resprouting, but it will not prevent root suckering. Before removing tree-of-heaven, treat them with a herbicide first. Allow 30 days for it to take effect and then cut the tree. There are many herbicides effective at controlling tree-of-heaven. the silvicultural objectives will require the removal of invading tree-of-heaven, there are options available.
Long-term elimination of Ailanthus requires diligence; its seed production, germination rate and sprouting potential make repeated follow-up monitoring essential.
New sprouts or seedlings should be treated as soon as possible after.
Leaving uncut living tissue between the hacks allows the herbicide to move to the roots.
Spray the herbicide in a inch-wide band continuously around the base of the tree of heaven if its diameter is no larger than 6 inches. Hack-and-Squirt Application 1.