| Abstract: | Grapevine leafroll is one of the most widespread and harmful grapevine diseases. To investigate the occurrence of grapevine leafroll-associated viruses-1 and 3, the survey of vineyards has been conducted in 2015 in six regions of the Crimea. A total of 689 leaf samples with virus symptoms were collected. GLRaV-1 and GLRaV-3 were analyzed by RT-PCR with the specific primers, followed by sequencing of the PCR products. GLRaV-1 and GLRaV-3 were detected in 34 (4.9%) and 37 (5.4%) of the samples, respectively. Vineyards in Simferopol, Bakhchisarai, and Sevastopol regions were found to be free of GLRaV-1 and GLRaV-3. |
