Source: Jeffrey Gunsolus, University of Minnesota Extension

If using multiple applications of glyphosate at increasingly higher rates is not improving weed control in your crops, you must stop following glyphosate failure with more glyphosate.

To maintain the usefulness of glyphosate in corn, soybean and sugar beet cropping systems in the future, it is important to reduce total reliance on glyphosate by diversifying weed management practices, putting more emphasis on spring and early-summer weed control and focusing glyphosate use in the crop where it is of greatest value to you.

Original news release