In the Laboratory for Molecular Characterization at the Institute for Adriatic Crops and Karst Reclamation we have  introduced a protocol for the detection of grapevine viruses  so we have successfully detected all 5 viruses included in the EU directive.  European Commission directive 2005/43/EC considers infectious degeneration [Grapevine fanleaf virus(GFLV), Arabis mosaic virus (ArMV)],  leafroll [Grapevine leafroll associated virus 1 (GLRaV-1), Grapevine leafroll associated virus 3 (GLRaV-3)], fleck [Grapevine fleck virus  (GFkV) only for rootstocks] and their causal viruses, as harmful diseases  whose  presence  must  be monitored and if found,  excluded  from  nursery stocks upon implementation of national certification schemes. Plenty of viruses in our autochtonous Croatian grapevine cultivars!