“I’m an optimist, but I have seen fields overrun by kochia, and last year we learned that we have Palmer amaranth and waterhemp,” says Dr. Albert Adjesiwor, University of Idaho Extension weed scientist in Kimberly.

Every day, farmers deal with variables out of their control, from weather to mechanical issues to weed pressure. In recent weeks, a new variable has affected many U.S. growers.

One or more herbicide-resistant weed specie can be found in every state in the Northeast and are present in major crop production areas across the country.