(NAFB.com) – Farmers are turning to post-emergent herbicides, but concerns about certain weeds, such as waterhemp, last until harvest. Waterhemp continues to be a major weed problem for soybeans in North Dakota, with confirmed resistance to glyphosate, group 2 herbicides, and group 14 herbicides in many counties. When we find waterhemp, it’s going to be almost guaranteed it’s glyphosate-resistant and resistant to our group 2 herbicides, said Joe Ikley, weed specialist at North Dakota State University at field days last summer. Some counties have been confirmed as having group 14 resistance to waterhemp. Ikely said the primary region for where waterhemp resides is from Fargo to Jamestown and the southeast corner of the state. That is where we kind of live and breathe waterhemp, unfortunately, from a weed control perspective. However, Ikley has heard from the northern tier of counties and up into Manitoba over the last two years.
