Woolly Weed-Eaters: Sheep are being trained to clear winegrape vineyards -- while leaving the vines alone.

摘要

ASK organic growers -- particularly those who are making the transition from conventional fruit growing -- what their chief problem is, and many will tell you of their weed woes. If only there were a truly effective, reasonably priced, organic herbicide to get rid of those pesky weeds. University of California (UC) researchers believe they may have found the solution. Only it's not an herbicide, precisely, but an herbivore.