CHICAGO — After the EPA announced it plans to withdraw its approval of Dow Chemical Co.’s Enlist Duo herbicide, the company says it expects safety concerns about the 2,4-D and glyphosate herbicide to be resolved in time for use in the U.S. in 2016, according to Reuters.
Dow Chemical Co. expects environmental safety concerns about its new herbicide Enlist Duo to be resolved, the company said Wednesday, after the government asked a federal appellate court to pull regulatory approvals while the chemical's safety is re-examined.
The EPA approved Enlist Duo for sale and use in several U.S. states over a year ago. But the agency has since found its assessment of the product's two active ingredients was incomplete, according to EPA's court documents, filed late Tuesday with the U.S. Court of Appeals for the Ninth Circuit in California.
Enlist Duo is a new combination herbicide aimed at combating weeds that have become resistant to glyphosate -- a widely-used herbicide in the United States and the active ingredient of Monsanto Co's Roundup product.
Enlist Duo combines glyphosate with another herbicide, 2,4-D, and is meant for use on corn and soybeans that have been genetically altered to tolerate it.
The EPA wants to study the product further after it found that the company's Dow AgroSciences unit claimed the two active ingredients work better together, according to court documents. EPA said its study assumed the components did not have such "synergistic effects."
"The information suggests that EPA's analysis may have understated the phytotoxicity of the product," the EPA said in the court filing.
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