Wisconsin is one of the leading producers of sweet corn for processing in the United States. However, it is becoming more difficult to produce high yielding sweet corn in Wisconsin due to limitations in broadleaf herbicides labeled for use in that crop. Weed management in sweet corn relies on preemergence (PRE) combinations of triazine and chloroacetanilide herbicides. Toxicological and environmental concerns about triazine herbicides have resulted in restrictions on these products, particularly in Wisconsin. These concerns include local restrictions of atrazine, groundwater and surface water contamination concerns with Princep, and the phase-out of Bladex. Frequent crop injury caused by 2,4-D and limitations in lambsquarters and pigweed control common with Basagran places further limitations on broadleaf weed control in sweet corn. These five herbicides are currently the only registered herbicides that can be used broadcast to control broadleaf weeds in sweet corn. In 1999, Wisconsin’s sweet corn acreage dropped below 100,000 acres for the first time in at least the last 40 years. There is little doubt that Wisconsin’s atrazine rules are the primary factor in this loss of sweet corn acreage. Sweet corn acreage in Illinois and Minnesota, where farmers can still use atrazine, is increasing!