Presence of grapevine viruses in a collection of woody indicator vines

The presence of eight viruses (Arabis mosaic virus ArMV, Grapevine fanleaf virus GFLV, Grapevine fleck virus GFkV, Grapevine leafroll-associated viruses 1, 2 and 3 - GLRaV-1, -2, and -3, Grapevine virus A GVA, Grapevine virus B GVB) was tested using ELISA in a collection of woody indicator vines located at the Faculty of Agriculture Zagreb. Out of 75 tested plants (15 from each indicator - LN33, 110 Richter, Vitis riparia Gloire de Montpellier, V. rupestris St. George and Kober 5BB) six of them (one of 110R and V. rupestris, two of LN33 and Kober 5BB) were positive to ArMV, one V. rupestris to GLRaV-1 and one V. riparia to GLRaV-2. All the infected plants were cut off and their roots killed using glyphosate.