What do officials at Monsanto, the sole supplier of Roundup Ready crops, have to say about this development?
Monsanto has adopted recommendations for marestail control where growers have had problems that include atrazine on conventional corn. In burndown, whether in front of corn or beans, a tankmix of Roundup and 2,4-D is suggested. For soybeans in-crop or burndown, Monsanto recommends a tankmix of Roundup plus Amplify, one of its products, which has a different mode of action.