Cucumber mosaic virus (CMV) is a tripartite, positive-sense RNA plant virus in the genus Cucumovirus, family Bromoviridae. This virus is one of the most economically important viruses affecting several crop plant species and it has one of the widest host ranges among the characterized viruses. Recently, snap bean (Phaseolus vulgaris L.) and pepper (Capsicum annuum L.) crops in Wisconsin have ex...