even worse than that, I was told by a farmer I know well, that in fact, sheep really like weeds that have been rounded up. Apparently it causes the sugars to all move to the leaves or somethign. I find it a little hard to beleive, but I doubt he would say it, unless he has seen sheep prefer the sprayed, to non-sprayed areas. Yes, sounds bad doesn't it. Not sure if that's an intended use of roundup. Scary, how much rounded up weeds a sheep might eat in a couple of days.