New potential cases of Palmer amaranth are being investigated North Dakota. NDSU Extension Weed Scientist Joe Ikley looked at two different fields in the last two weeks, one in Benson County and the other in Nelson County. “I walked fields and found plants that looked like Palmer amaranth. Samples have been collected and sent to the lab to confirm if it’s Palmer,” says Ikley. “We want to confirm before we put an action plan in place because it’s a noxious weed.”