Quite simply, it works and is working well for Nimbleweed. I have no doubt it will work for Charlie but ill let you know soon. Going to try and spray my dads infestation today.
As for the Nimbleweed, its reacted exactly like the literature for Tenacity says. It has turned white and is obviously dying. Its interesting to see the difference between how this product works versus how 4d or glyphosate works. Those typically causingnshriveling and Browning. But at this point there is not much change in the physical shape of the grass. Its literally turning white. The downside is that its even more visible in my yard now but it should allow the other turf to grow in. I’m planning to slit seed around labor day so this should be interesting.