Round up is all I sprayed.
Drainage is good.
There were no other weeds in plot.
It looked awesome for a little while, I also thought of someone may have sprayed it, dont think so though.
On some of the plants it did look like something like a bug was eating on it.
we did have a 2 week spell with no rain after it was 8" tall or so, would that kill it???
Seemed like the parts in the sun died first, then the other half that sees more shade died, we did have several 100 degree days in that time frame..
The pic in the avatar is a bighead carp-92#