In our last couple posts you saw the rhizome injector system that we have been experimenting with. We did applications throughout the winter and early spring. The injections were through the dead hollow stems. We cut the stems at ground level and inserted the needle down into the rhizome. A few weeks ago, I noticed the shoot clumps were starting to send up aerial shoots. I was concerned that the herbicide might not be having an effect. However, glyphosate is slow-acting, so I kept reminding myself to be patient.
We are finally starting to see results. They are encouraging. Here are photos of several of the treated stems.