The soybean aphid (Aphis glycines Matsumura) is not the only disease-transmitting pest that has made an impact on Wisconsin soybean in recent growing seasons. In southern Wisconsin, it is accompanied by another common and significant pest — the bean leaf beetle, Cerotoma trifurcata (Forster). The bean leaf beetle (BLB) has increased in abundance in the upper Midwest in recent years, likely due in part to the increased acreage of soybean. But a new concern is the beetle=s ability to vector bean pod mottle virus (BPMV). In several Midwest states, this beetle-virus system has caused significant yield losses and reductions in seed quality for several years. We are just beginning to see this virus in Wisconsin.