Epidemiology of Raspberry Bushy Dwarf Virus in the Czech Republic

Extensive monitoring of the raspberry bushy dwarf virus "RBDV# in cultivated raspberry\ wild raspberry and blackberry was conducted in 0883 88[ RBDV was revealed by ELISA in 20[5) of _eld samples\ 04[6) plants in germplasm collections and in 32[7) of propa! gated plants[ Infected cultivars were Aborigen\ BalzamBrigantina\ Bulharsky Rub( n\ Canby\ Comox\ F!092Findus\ Gatineau\ Glen Moy\ Grana t\ Heritage\ Lloyd George\ M!090\ Ma ja\ Meeker\ Norfolk Giant\ NornaNS !0D!090\ Skeena\ Trent\ Veten\ Zamatos and Zeva[ The virus was detected in 5[4 and 5[6) of wild raspberry and wild blackberry plants\ respectively\ at 11[7) and 00[3) of sampled locations[ Vegetatively propagated plants seem to be the main source for virus spread in cultivated raspberry\ rather than naturally infested wild Rubus populations