Mark VanGessel, Extension Weed Specialist; mjv@udel.edu
Enlist One and Enlist Duo, both containing 2,4-D choline, were approved for 2022 season. These are both labeled for application with Enlist soybeans. These were the first herbicides registered by EPA with a fuller integration of the Endangered Species Act which prevents the use in numerous counties throughout the US. However, none of the counties in DE or eastern Shore of Maryland were impacted. The application cutoff timing was changed to R1 (prebloom) to avoid applications when bees are visiting the fields. There is a required 30-foot downwind buffer to sensitive areas (refer to label for specific requirements). Applications must be made no less than 48 hours prior irrigation or rainfall. A new change is a required “Mitigation Measures” for runoff management. This is required for ALL fields treated with Enlist One and Enlist Duo. Mitigation Measures are on a credit system and the number of credits required depends on soil types. Refer to label for complete list of Runoff Mitigation Measures.