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Background  Passion fruit woodiness may be caused by  Cowpea aphid - borne mosaic virus  (CABMV) and is currently the major passion fruit disease in Brazil. To assess the virus-vector-host interactions, a newly introduced golden passion fruit plantation located in eastern region of São Paulo State, Brazil, was monitored.    Methods  Dissemination of CABMV was determined analyzing golden passion fruit plants monthly for 18 months by PTA-ELISA. Seasonality and aphid fauna diversity was determined by identification of the captured species using yellow sticky, yellow water-pan and green tile traps. Population composition of the aphid species was determined using the descriptive index of occurrence, dominance and general classification and overlap of species in the R program.    Results  Analyses of species grouping afforded to recognize 14 aphid species. The genus  Aphis  represented 55.42 % of the species captured. Aphid species formed two distinct clusters, one of which was characterized by the diversity of polyphagous species that presented high potential to spread CABMV.    Conclusion  The low abundance and diversity of aphid species did not interfere negatively in the CABMV epidemiology. The genus  Aphis , particularly  Aphis fabae/solanella  and  A. gossypii , was crucial in the spread of CABMV in passion fruit orchards in the eastern State of São Paulo.

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Survey of aphid population in a yellow passion fruit crop and its relationship on the spread Cowpea aphid-borne mosaic virus in a subtropical region of Brazil