Always wear protective clothing, including breathing protection, when working with systemic herbicides.
Mimosa trees have two or three large-diameter main roots from which the rest of the root system grows. Concentrate your digging efforts around these larger roots. 2 Dig an 8- to inch deep trench. Drill holes in the top of the stump using a one-inch extra-long drill bit. Pour the bleach or vinegar into the holes. Cover the stump with a tarp to keep outside water sources from washing away.
A mimosa will fight to continue living as long as it possibly can, often sprouting seedlings from a stump or leftover root system.
Sep 21, Cut down larger trees at ground level with a chain saw when they start to flower. Do not cut them when they have produced seed pods because the seeds will scatter and produce more mimosas. Apply a systemic herbicide to the cut stump to kill the roots of the tree. It may take several applications of systemic herbicide to completely kill the tree.
Jun 03, Cutting the trees off at ground level certainly acts to get rid of mimosa trees, but the trunks will resprout. Repeated cutting of spouts or use of an herbicide is required to stop the sprouts.
Girdling is also an effective way to get rid of mimosa trees. Cut off a strip of bark all around the tree about six inches (15 cm.) above the stumpmulching.barted Reading Time: 3 mins.