The Southeast Farm Press reports herbicide-resistant weeds are on the rise in NC:
Speaking at the 2016 Road Show Production Meeting at the Vernon James Research and Extension Center Jan. 28, Wes Everman, North Carolina Extension weed specialist, said herbicide-resistant common ragweed and herbicide-resistant common water hemp have been confirmed near Elizabeth City. On top of this, herbicide-resistant palmer Amaranth remains a major headache for North Carolina farmers.
Ragweed, water hemp, and palmer Amaranth pose a threat to conventional soybean crops. N.C. State researchers say they’ve identified specimens that survived the application of common herbicides.
Everman explained that the ragweed found in 2015 survived PPO inhibitors, ALS inhibitors and glyphosate applied post emergence. “In soybeans, it is a concern,” he said. “In conventional or Roundup Ready soybeans, our post emergence options are gone. You can’t spray glyphosate, ALS inhibitors or any of the PPOs. There are no options if this spreads.”
Read more here.
Meanwhile, Civil Eats reports the FDA will begin testing for glyphosate residue in foods after the World Health Organization declared the weed-killer a probable human carcinogen. Glyphosate is the active ingredient in Roundup, and the most widely used herbicide in the world.
The FDA’s move comes amid growing public concern about the safety of the herbicide, and comes after the U.S Government Accountability Office (GAO) rebuked the agency for failing to do such assessments and for not disclosing that short-coming to the public.
Private companies, academics, and consumer groups have recently launched their own testing and claim to have detected glyphosate residues in breast milk, honey, cereal, wheat flour, soy sauce, infant formula, and other substances.
Starting in fiscal year 2016, the FDA will spend $5 million to test for glyphosate residues in soybeans, corn, milk, and eggs. Read more here.