Monsanto Says Weedkiller-Resistant Kochia Found in Canada
This article is for subscribers only.
Monsanto Co., the biggest seed maker, said the bushy plant Kochia is no longer being killed by the company’s Roundup in parts of Canada, a sign that resistance to the world’s best-selling herbicide is spreading.
Kochia that resists glyphosate, the active ingredient in Roundup, was confirmed in three fields in southern Alberta, St. Louis-based Monsanto said yesterday in a statement on its website. The weed, which can thrive in drought conditions and grow 7 feet tall (2.1 meters), previously was found to be glyphosate-resistant in three U.S. states, the company said.