Janet Carpenter and Leonard Gianessi
National Center for Food and Agricultural Policy

Soybean growers have adopted herbicide tolerant varieties at a rapid rate. While some potential cost savings may have driven adoption, the primary reason growers are switching to new programs is the simplicity and flexibility of a weed control program that relies on one herbicide to control a broad spectrum of weeds without crop injury or crop rotation restrictions. Roundup Ready weed control programs for soybeans fit into on-going trends towards postemergence weed control, adoption of conservation tillage practices and narrow row spacing. Roundup Ready systems have also solved some of the problems growers faced in conventional weed management systems.

Key words: Biotechnology; Roundup Ready soybeans; weed control.