Table 5 Prevalence of major grape viruses on major V. vinifera cultivars in Ontario
From: Survey for major viruses in commercial Vitis vinifera wine grapes in Ontario
Viruses tested | Cabernet Franc | Cabernet Sauvignon | Pinot Noir | Merlot | Syrah | Chardonnay | Riesling | Pinot Gris | Sauvignon Blanc | Gewürz traminer |
|---|---|---|---|---|---|---|---|---|---|---|
GLRaV-3 | 49.7 | 22.2 | 33.7 | 13.9 | 86.3 | 56.1 | 53.0 | 58.8 | 31.6 | 68.8 |
GLRaV-2 | 5.2 | 25.0 | 2.2 | 0.0 | 0.0 | 7.6 | 4.0 | 0.0 | 10.5 | 0.0 |
GLRaV-1 | 1.3 | 0.0 | 2.2 | 0.0 | 0.0 | 3.0 | 4.0 | 0.0 | 5.3 | 6.3 |
GRBV | 25.8 | 22.2 | 7.6 | 5.6 | 64.7 | 21.2 | 2.0 | 20.6 | 26.3 | 0.0 |
GPGV | 35.5 | 5.6 | 8.7 | 16.7 | 35.3 | 15.2 | 13.0 | 14.7 | 47.4 | 6.3 |
GVA | 1.9 | 2.8 | 3.3 | 0.0 | 0.0 | 16.7 | 15.0 | 0.0 | 5.3 | 18.8 |
GVB | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 4.5 | 8.0 | 0.0 | 5.3 | 0.0 |
GRSPaV | 89.8 | 72.2 | 87.0 | 97.2 | 100.0 | 95.5 | 68.0 | 94.1 | 100.0 | 81.3 |
GFkV | 19.4 | 2.8 | 60.9 | 27.8 | 0.0 | 18.2 | 11.0 | 26.5 | 26.3 | 0.0 |