Belgrade sorrounding (Višnjica, Grocka, Umčari)

Inspection in the field showed mass presence of vector Scaphoideus titanus on many localities east from Belgrade (Visnjica, Grocka, Ritopek, Pudarce, Umcari). Percent of phytoplasmatic plants ranged in average from 10 to 20%, while on locality Umcari it was 70%. There is a high number of private small extensive vineyards in wider surrounding of Belgrade, which slightly complicates thorough survey.

Locality: village Umcari (GPS; N 44^o 34.963; EO 20^o 44′ 863; elev: 141 m.): vineyard down the road, 15 years old, extensive nursery, practically abandoned. Around 600 vines of different cultivars. Phytoplasmatic symptoms are present on over 70%  vines and S. titanus with numerous populations. In 3 out of 7 samples analysed in October 2004, Stolbur phytoplasma was the only one detected.

Locality: village Pudarce near Grocka (GPS; N44^o 36′ 055; EO 20^o 43′ 550; elev: 244 m.): vineyard intensively nursed, with 90 vines of different cultivars; 16 years old, with plants added during last 10 years as replacement for devastated vines. All planting material originates from Velika Drenova region. In total, 20% of plants expressed typical symptoms of phytoplasma disease, with additional 12.2% of plants with whole vines showing symptoms. Numerous populations of S. titanus were present.