| detection and molecular characterization of egyptian isolates of grapevine viruses. | selected commercial and/or local vineyards and nurseries in three different governorates of egypt (alexandria, el-beheira and el-menofia) were surveyed for symptoms indicative of infection by grapevine viruses. leaf samples from red-fruited and white-fruited vitis vinefera were tested for grapevine leafroll associated viruses (glrav-1, glrav-2, and glrav-3), grapevine viruses a and b (gva, gvb), grapevine rupestris stem pitting virus (grspav), grapevine fanleaf virus (gflv), and grapevine fleck ... | 2014 | 24957718 |