A United States appeals court has upheld an injunction blocking the sale of Monsanto's Roundup Ready alfalfa seed until the US Department of Agriculture finalises research on the environmental impact of the biotech seed on nearby crops.
The Ninth Circuit Court of Appeals denied the company's request for a rehearing of its appeal and said it would accept no more petitions for rehearing in the case which began three years ago.
The permanent injunction prevents further planting until USDA completes an EIS, which is anticipated by fall 2009.
Monsanto is "disappointed" with the decision and hasn't ruled out asking the Supreme Court to review the case, according to media reports.