PORTLAND, Ore.— The U.S. Department of Agriculture today issued a final deregulation decision approving Monsanto and Scotts’ genetically engineered (GE) bentgrass, even as the highly invasive creeping grass continues to spread unchecked beyond its Oregon and Idaho test plots.

Decades-old outdoor experiments have proven the bentgrass impossible to control since it escaped from “controlled” plots and invaded irrigation ditches, riverbanks and the Crooked River National Grassland, crowding out native plants and the wildlife that depends on them. Despite more than a decade of efforts and millions of dollars spent, the U.S. Department of Agriculture, Scotts and Monsanto have failed to curb the spread of the invasive grass. Yet now the USDA has capitulated to Monsanto’s and Scotts’ request that federal regulators relinquish any authority over the GE grass, leaving local landowners and state of Oregon to wrestle with the problem.

“The USDA’s decision ignores a groundswell of united opposition from state departments of agriculture, the U.S. Fish and Wildlife Service, university professors, scientists, farmers and conservationists,” said Lori Ann Burd, director of the environmental health program at the Center for Biological Diversity. “Because this blatant bow to industry will continue to harm farmers, endangered species and the precious landscape, the USDA has left us with no choice but to explore our legal options to return the burden of controlling this weedy grass back to the shoulders of the corporate profiteers who brought it into the world.”

The GE bentgrass has already illegally contaminated at least three Oregon counties, and the ultralight grass seeds and pollen have proven impossible to eradicate. Farmers and noxious weed experts in eastern Oregon have been outspoken critics of the proposal to approve the grass. In response to widespread contamination, GE creeping bentgrass was declared a noxious weed in Malheur County in 2016. With this approval the responsibility for controlling contamination now shifts from the USDA, Scotts and Monsanto to individual farmers and landowners, left alone to grapple with the problem.