Dow Chemical's Enlist Weedkiller Preliminarily Approved

Dow Chemical Co., the biggest U.S. chemical maker by sales, received preliminary approval to sell a new version of its 2,4-D herbicide aimed at stopping the spread of weeds no longer killed by Monsanto Co. (MON)’s Roundup.

Enlist Duo can be sprayed on corn and soybeans that Midland, Michigan-based Dow has engineered to tolerate the weedkiller, the U.S. Environmental Protection Agency said today in a proposed decision. Public comments will be accepted for 30 days, the EPA said. Enlist Duo contains glyphosate and 2,4-D reformulated to reduce the risk of drifting onto nearby fields.

Dow is counting on Enlist herbicide and related crops to generate $1 billion in earnings as farmers look for ways to control weeds that increasingly survive glyphosate, the active ingredient in Roundup. The EPA said it would require monitoring and a remediation program to ensure weeds don’t also become resistant to 2,4-D.

“If finalized, this action will provide an additional tool to reduce the spread of glyphosate resistant weeds,” the EPA said in an Internet fact sheet on its decision.

To contact the reporter on this story: Jack Kaskey in Houston at jkaskey@bloomberg.net

To contact the editors responsible for this story: Simon Casey at scasey4@bloomberg.net Jasmina Kelemen

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