We describe an initial assessment of plant viruses with a single-stranded DNA genome in Azerbaijan.In the years 2009 and 2010, a limited survey of cultivated and wild legumes as well as of tomato hasuncovered the presence of three different nanoviruses, two distinct faba bean necrotic yellows virusesand one faba bean necrotic stunt virus. In addition, tomato plants showing symptoms typical of tomatoyellow leaf curl virus, a geminivirus, were encountered. The results presented provide proof for theefficiency of combining serological diagnosis with the power of DNA rolling circle amplification (RCA)to rapidly obtain genetic information on viral plant pathogens with a circular DNA genome.