Integrated Crop Management News

Document Type


Publication Date



Many producers may be in a position where they must unexpectedly change from a preemergence-based program for grass control in corn to a postemergence program due to the recent rains. Several products are available that provide effective control of emerged grasses in these situations. These products are based on the sulfonylurea herbicides nicosulfuron and rimsulfuron (Table 1). Nicosulfuron, the lone active ingredient in Accent, has little residual activity but has more foliar activity than rimsulfuron. Rimsulfuron has less foliar activity than nicosulfuron, but provides better residual control.

Copyright Owner

Iowa State University



File Format





The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit