Issues related to herbicide-resistant weeds are not new to Wisconsin, considering triazineresistant lambsquarters date back to the 1970s. Through this time, Wisconsin growers have frequently adapted to the problems created by the resistant weeds by switching to herbicides with different modes of action. These growers have continued to successfully manage weeds once the problem was identified and herbicide-resistant weeds have not led to the failure of farming.

Now, there is new discussion about the risk of glyphosate resistance. It is logical to determine the degree of this risk and whether management practices should be used to delay resistance or to manage the problem when it occurs. Because this issue may affect many sectors of Wisconsin’s agriculture, University of Wisconsin Extension decided to host a focus group to determine the level of concern about resistance among these sectors and determine what additional information may be needed by our agricultural industry. This focus group meeting was called the Glyphosate Resistance Roundtable. Two representatives from each of the following sectors were invited to the Roundtable: dairy producers, corn growers, soybean growers, vegetable growers, independent consultants, pesticide dealers, extension agents, and university weed scientists.