It's called Hi-Yield Grass Killer. I got it at the feed mill, but have seen it on E-bay. Try Here...
http://cgi.ebay.com/Hi-Yield-G...
That is about what it normally sells for so if you can find it locally you can save on the shipping. DO NOT BUY THE ONE THAT is labeled KILLZ ALL by the same company. There are other brands but I have not used them.
