The USDA could soon deregulate seeds that can stand up to even stronger herbicides, but critics say more genetically modified crops are not the answer. The U.S. has produced genetically engineered corn and soybeans for years, but now farmers are plagued by weeds that are resistant to popular weed killers they were designed to withstand, including Roundup. According to Dow AgroSciences, the solution is to engineer plants that can resist an even stronger herbicide: 2,4-D. The U.S. Department of Agriculture (USDA) must assess the potential environmental impact of new seed technologies in an Environmental Impact Statement (EIS). Last Friday, the organization released a draft EIS supporting the complete deregulation of seeds designed to resist 2,4-D, and is opening it up for public comment for 45 days. The Environmental Protection Agency (EPA) is also performing a review of the new herbicide-resistant crops, and is expected to release its own report in the coming months.

The Science Behind the Seeds Ed Curlett, director of public affairs for the USDA’s Animal and Plant Health Inspection Service (APHIS), noted that some reports are saying the new seeds can withstand Agent Orange. He emphasized that 2,4-D is not the same thing. “Comparing 2,4-D to Agent Orange is concerning, as 2,4-D is not Agent Orange,” Curlett said. Agent Orange, used for defoliation during the Vietnam War, was a mixture of herbicides 2,4-D and 2,4,5-T, mixed with trace amounts of kerosene or diesel fuel. It contained small amounts of dioxin, a highly toxic contaminant by-product of 2,4,5-T. In 1985, the EPA banned the use of 2,4,5-T, but the agency has approved the use of 2,4-D and considers it safe when used according to specifications, Curlett said. However, environmental groups strongly oppose the approval of 2,4-D-resistant crops, saying it will likely increase the volume of chemicals sprayed on food products and into the soil. “We expected better from the Obama Administration,” Andrew Kimbrell, executive director of the Center for Food Safety said in a statement, calling the seeds “Agent Orange crops.” “This is among the worst applications of biotechnology,” Kimbrell said. “‘Agent Orange crops’ are designed to survive a chemical assault with 2,4-D. They will increase the use of toxic pesticides in industrial agriculture while providing absolutely no benefit to consumers.” Jeff Wolt, a professor of agronomy at Iowa State University’s Biosafety Institute for Genetically Modified Agricultural Products, said that discussion on the matter is being hindered by activists who are stigmatizing the new seeds and 2,4-D, which has been used across the globe for many decades. Wolt also said that it may take some time to commercialize the products even if the USDA approves their deregulation, because other information could arise that may warrant a re-evaluation. “I would expect that the intent is to have a decision in time for the coming planting season,” he said.