Glyphosate-Resistant Italian Ryegrass Management Problem In Louisiana
By Daniel Stephenson And Josh Copes
LSU AgCenter
Glyphosate-resistant Italian ryegrass has been an issue in the mid-South for the past 10 to 15 years. In Louisiana, growers have been battling this pest for five to 10 years, and the problem is spreading each year. Louisiana does not have ryegrass issues like Mississippi, but if control strategies are not implemented, Louisiana will.
Mississippi State University developed herbicide programs for glyphosate-resistant management, and the LSU AgCenter has adopted those programs for dissemination to Louisiana producers. The Mississippi program is divided into fall, winter and spring treatments for corn, cotton, soybean and rice.