Fighting a mighty weed
(PHYSorg.com Chemistry)

Weeds are pesky in any situation. Now, imagine a weed so troublesome that it has mutated to resist multiple herbicides. Palmer amaranth, a member of the pigweed family, is spreading across states and growing in strength. If farmers and weed scientists cannot find a new solution, crop yields could decline substantially, according to an article in Chemical and Engineering News (C&EN), the weekly news magazine of the American Chemical Society.