ORIGINAL: RonM
Those lab scientists are always working on something, I have heard they are working on a RR turf mix, I hope not, that would mean in a few years that somegrasses would not be affected by Roundup, then it would lose it's purpose. It doesns't do anything for a couple weeds now, like horseweed, marestail...
Ron, they change the plant genetically to make it RR. They don't change the roundup.
I'm sure there are other products that will kill RR crops.