FDp strain FD-PEY05 was used for inoculations. It was transmitted to broad bean (Vicia faba) by S. titanus leafhoppers, collected in 2005 in FD-infected vineyards in Peyrière, South-west France (Papura et al., 2009 (link)). The FD-PEY05 genotype belongs to the map-FD2 genetic cluster, and is widely distributed in the main outbreaks of Western Europe (Arnaud et al., 2007 (link); Papura et al., 2009 (link)). The strain has been maintained since then by serial transmission on broad bean, using Euscelidius variegatus as a vector (Caudwell et al., 1972 ).
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