EPA Reapproves Dicamba Weed Killer for Genetically Modified Crops

Decision raises concerns over pesticide drift and environmental impact

Published on Feb. 7, 2026

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The Environmental Protection Agency has reapproved the use of the weed killer dicamba on genetically modified soybeans and cotton, despite concerns from environmental groups about the pesticide's tendency to drift and damage nearby crops and plants.

Why it matters

Dicamba has been a controversial pesticide due to its ability to drift and harm non-target plants. This decision by the EPA to allow its continued use on two major crops will significantly expand its application, raising fears of increased environmental damage and health risks.

The details

The EPA said it imposed new restrictions on dicamba use, including limits on application rates, hot-day spraying, and buffer zones. However, critics argue these measures are insufficient to prevent the pesticide from drifting and harming nearby vegetation. Environmental groups warn dicamba exposure is linked to increased cancer risks.

  • The EPA approved the use of dicamba on genetically modified soybeans and cotton on February 7, 2026.
  • Similar efforts by the EPA to reapprove dicamba were blocked by courts in 2020 and 2024.

The players

Environmental Protection Agency (EPA)

The federal agency responsible for regulating pesticides and protecting human health and the environment.

Kelly Ryerson

An activist with the Make American Healthy Again (MAHA) movement, which has formed a political alliance with the Trump administration.

Nathan Donley

Environmental health science director at the nonprofit Center for Biological Diversity, which criticized the EPA's decision.

Bayer

A manufacturer of the dicamba weed killer, which said the federal registration will allow them to seek state approvals.

American Soybean Association

An industry group that applauded the EPA's decision, saying clear rules would help farmers prepare for the next growing season.

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What’s next

Bayer said it will launch training for applicators in the coming weeks as it seeks state approvals for the use of dicamba.

The takeaway

This decision by the EPA to reapprove dicamba despite ongoing concerns about its environmental and health impacts highlights the continued influence of the pesticide industry and the challenges in balancing agricultural needs with environmental protection.