Herbicide-resistant weeds are a significant threat to soybean, cotton and corn yield potential — and the future of crop production. “Because weed resistance is naturally occurring, it’s a myth that we ...

When it comes to weed pests, glyphosate-resistant waterhemp tops the list, but resistant giant ragweed may be the challenger. “Giant ragweed certainly has my attention,” Kevin Bradley, University of ...

MSU faculty researchers, from left to right, Brian Pieralisi, Daniel Chesser and Wes Lowe analyze cotton in a field at the university’s MAFES R. R. Foil Plant Science Research Center. (Photo by David ...

Even though the first glyphosate-resistant weeds were identified in Northwest Iowa in 1998, there is more work to be done with resistance management. While herbicide resistance, especially to ...

Five effective strategies to control glyphosate-resistant ryegrass in field corn, including tillage, herbicides and other seasonal management tips.

ST. PAUL -- I saw many corn and soybean fields with prominent patches of giant or common ragweed, common waterhemp or volunteer corn during my travels in Minnesota, Wisconsin and Iowa this fall. These ...

A new map shows which herbicide-resistant weeds have been identified in each county in Eastern Washington and some counties in northeastern Oregon. “We have a resistance problem, and it’s getting ...

MOORHEAD, Minn. -- Tom Peters is often asked if he "works with weed resistance." "I say, no I do not: I work with weeds management," says Peters, a sugar beet agronomist with University of Minnesota ...

Waterhemp control is critical because the weed can cause significant yield loss and, when it is resistant to herbicides, also results in increased control costs, as much as doubling them. Quincy Law ...

INDEPENDENCE, Iowa — Simplicity and convenience have run their course when it involves effective weed management, said Mike Owen, Extension weed specialist. An integrated, diverse approach is needed ...

URBANA - In a little over seven hours, University of Illinois weed scientist Patrick Tranel got more genetic information about waterhemp than in two years time in a lab. The genetic information was ...

A biotech corn variety that withstands five herbicides is stoking the debate over whether expanded crop chemical resistance protects weed-fighting tools or renders them useless. The Bayer Cropscience ...