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Jan. 21, 2022
By Ryan McGeeneyU of A System Division of Agriculture
LITTLE ROCK — Growers in 11 counties in western Arkansas are among those in more than
200 counties nationwide who will find themselves without the use of two popular herbicides
for the 2022 growing season.
On Jan. 11, the U.S. Environmental Protection Agency granted a seven-year registration
renewal to Enlist One and Enlist Duo, both of which are labeled for over-the-top use
in Enlist corn, cotton and soybean.
The renewal, however, was among the first to incorporate a standard known as the Endangered
Species Act Protection Policy, which takes into account potential impacts on endangered
species in a given area.
The affected Arkansas counties include Crawford, Franklin, Johnson, Little River,
Logan, Montgomery, Polk, Scott, Sebastian, Sevier and Yell counties.
According to the U.S. Department of Agriculture’s 2017 Census of Agriculture, these
counties combined produce about 47,000 acres of soybean and about 15,000 acres of
Tommy Butts, extension weed scientist for the University of Arkansas System Division
of Agriculture, said that while the Enlist products are prohibited in the specified
areas, the underlying active ingredient, a chemical compound known as 2,4-D, is not.
“Those products are used over-the-top in Enlist cotton and soybean, along with some
Enlist corn, in Arkansas,” Butts said. “Typically, when the EPA approves or revokes
labels, they go off the marketed product — Enlist, in this case — not the actual active
ingredient. So growers in those counties will have 2,4-D products available to them
for other uses such as pastures, turfgrass and homeowner use.
“However,” he added, “No other 2,4-D products are available for over-the-top use in
As other pesticides labels come up for renewal, however, they may be subject to the
more stringent standards.
“I can’t tell you what’s going to be banned where, but I can tell you that I am very
nervous moving forward,” Butts said. “I would expect that we’re going to have to deal
with these prohibitions for multiple pesticides as they come up for registration.”
Butts said his advice to growers who now find themselves without the use of their
preferred herbicide is the same as that he offers to any other grower, which can be
summed up with the acronym SPORTS: Start clean, pre-emergence herbicides, overlap
residuals, required integrated weed management tactics, timely, selection of multiple,
effective modes-of-action herbicides.
“Start the season with a clean field,” Butts said. “Use pre-emergent herbicides, use
overlapping applications of residual herbicides, use required integrated weed management
tactics such as narrow row spacing, be timely with your scouting and application and
be selective with your herbicides — don’t just rely on broad-spectrum herbicides and
hope for the best.”
Addidtional comment was being sought from the EPA.
To learn about extension programs in Arkansas, contact your local Cooperative Extension
Service agent or visit www.uaex.uada.edu. Follow us on Twitter and Instagram at @AR_Extension. To learn more about Division
of Agriculture research, visit the Arkansas Agricultural Experiment Station website: https://aaes.uark.edu. Follow on Twitter at @ArkAgResearch. To learn more about the Division of Agriculture,
visit https://uada.edu/. Follow us on Twitter at @AgInArk.
About the Division of Agriculture
The University of Arkansas System Division of Agriculture’s mission is to strengthen
agriculture, communities, and families by connecting trusted research to the adoption
of best practices. Through the Agricultural Experiment Station and the Cooperative
Extension Service, the Division of Agriculture conducts research and extension work
within the nation’s historic land grant education system.
The Division of Agriculture is one of 20 entities within the University of Arkansas
System. It has offices in all 75 counties in Arkansas and faculty on five system campuses.
The University of Arkansas System Division of Agriculture offers all its Extension
and Research programs to all eligible persons without regard to race, color, sex,
gender identity, sexual orientation, national origin, religion, age, disability, marital
or veteran status, genetic information, or any other legally protected status, and
is an Affirmative Action/Equal Opportunity Employer.
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Media contact:Ryan McGeeneyCommunications ServicesUniversity of Arkansas System Division of AgricultureCooperative Extension Service(501) email@example.com