TheSeedObsesser
Deeply Rooted
You could try ducks. We had a high population of ducks in our poultry-yard for a while and it turned the area into wasteland. The soil line in the poultry yard was a good 6 inches below the rest of the yard too.
Ridgerunner said:Fence it off and raise pigs in there. Make sure the population density is pretty high so it's all turned to a wasteland for the entire season. But that only helps the area you fence off temporarily. It'll spread and re-seed from outside.
I don't have that stuff for which I'm grateful. My battle is mainly with Bermuda grass.