The U.S. Environmental Protection Agency has granted new registrations and labels for Corteva Agriscience’s Enlist One and Enlist Duo herbicides.
The products are registered for seven years but will not be available to growers in a limited number of Minnesota counties. In Minnesota, Enlist Duo will be prohibited for use in Clay, Marshall, Polk, Redwood, Renville and Stearns due to federally listed endangered species. Please note: Enlist One will still be labeled for use in those counties.
EPA is also adding several new requirements to the label to protect these federally listed species and habitats, as well as limit off-target movement and protect pollinators.
These additional restrictions include:
- No applications permitted when rainfall is expected within 48 hours, or when soils are fully saturated
- No irrigation that could produce runoff within 48 hours of application
- Users must select from a list of runoff reduction measures to reduce 2,4-D and glyphosate concentrations in runoff
- Only approved tank mixes, nozzles and spray pressures are permitted here and here
- A downwind 30-foot infield buffer is required to protect sensitive areas
The new measures aimed at protecting pollinators are:
- No applications permitted after soybean and cotton crops are in bloom and might attract pollinators, such as honeybees
- A new requirement for Corteva to provide mandatory education and training materials “emphasize the importance of pollinators and pollinator habitat for species including, but not exclusive to, monarch butterflies
Enlist Duo and Enlist One are herbicides used for post-emergence control of broadleaf weeds in cotton, soybean and corn crops, including those that have developed resistance to multiple herbicides.
The active ingredient, 2,4-D, which is in both Enlist One and Enlist Duo, provides control of broadleaf weeds, including glyphosate-resistant weeds like Palmer amaranth. The active ingredient, glyphosate, which is only in Enlist Duo, provides control of grass weeds and other broadleaf weeds.
Resources
https://www.regulations.gov/document/EPA-HQ-OPP-2021-0957-0007
