Last month the CSR Team, in conjunction with the Utah Fish and Wildlife and Utah State University, completed a Russian Knapweed (Rhaponticum repens) herbicide treatment project just outside of Moab, Utah. The site was known as the Entrada Ranch and is being ‘leased’ to Utah State University and is now known as Rio Mesa. The University is using the site as a study plot.
The Knapweed infestation is extremely thick in this area. CSR treated 45 acres of this highly invasive weed and will be returning this month to seed native grasses across 42 of those acres.
Fall is usually the most effective time to treat perennial noxious weeds with herbicide. As the weather gets colder, invasive weeds begin to move growth production to the root zone, preparing for over-wintering. This treatment is generally a more successful, long-term control method because plant sugar and growth hormone movement is directed to the roots and will translocate the herbicide to this area.