Virus problems in legumes appear to have changed from sporadic occurrences to frequencies that suggest research efforts need to be increased. The virus situation in snap bean has escalated from minor to one of significant concern in Wisconsin and other Midwestern states. Although not fully documented, aphids, including the recently discovered soybean aphid, and other virus transmitting insects appear to be more active in recent years. Many viruses found in snap bean are also present in forage legumes and soybean. Besides seed transmission, forage legumes are viewed as a significant source of virus inoculum from which insects are moving viruses to snap bean and soybean.