Dow Chemical Co. fell the most in almost two months after the U.S. Environmental Protection Agency withdrew approval of the company’s Enlist Duo herbicide, citing new evidence that the chemical damages plants other than the weeds it’s meant to kill. The shares dropped as much as 4.6 percent and closed down 2.7 percent at $51.92 in New York. The EPA said in a motion filed in a federal appeals court it has new information regarding “potential synergistic effects between the two ingredients” in the herbicide. The agency said it has learned that a 30-foot (9-meter) buffer surrounding areas where the weedkiller is applied...
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