Dave from Granada Hills Ca writes
I have sprayed nutsedge three times with Tenacity. The sedge is bright white and seems to grow but not as fast as before spraying 5 weeks ago. Sprouts keep popping up in an area I have been digging the root out, again they pop up white. I am going to try SedgeHammer after they pop up again, any advise?
Tenacity is labeled to control yellow nutsedge only, so it could be you are treating purple nutsedge, or kyllinga, which is in the same family and looks similar to sedges. If you have applied the Tenacity to the sedge with a surfactant and it has not died out completely and is only white after 5 weeks we would suggest to go ahead and try the Sedgehammer on any new growth. Sedge control products are supposed to be very slow killing so that it can try to move through the whole plant and roots as much as possible. Sedgehammer can take at least 3-5 weeks to kill down to the root and can be reapplied after 6 weeks if a second application is needed.
Answer last updated on: 05/07/2019
