Flight activity of aphids in Serbia: investigation by water traps placed in sugar beet fields

Plant viruses, and aphids as their vectors, are limiting factors in sugar beet production. Viral plant diseases currently impossible to treat but knowing the flight patterns of can help reducing number potential virus vectors. Monitoring aphid activities fields was done using yellow water traps from April end November. During two years investigation, a total 5514 specimens 75 different taxa were collected. The highest individuals recorded at May/beginning June all localities. This is period when develops intensively, so risk infection highest. most numerous species Aphis fabae Scopoli, spiraecola Patch., Phyllaphis fagi (L.), Myzus persicae (Sulzer), Rhopalosiphum padi Sitobion avenae (Fabr.), Acyrthosiphon pisum (Haris) Therioaphis trifolii (Monell). important vectors A. fabae, M. persicae. that feeds on causes significant damage both by feeding its vector activity. abundant autumn, present throughout whole flight-monitoring period. Among caught aphids, twelve alien Europe