From: Survey for major viruses in commercial Vitis vinifera wine grapes in Ontario
Viruses detected | No. of vine blocks tested | No. of positive blocks | Percentage of positive blocks (%) | No. of blocks in which all sample tested positive | Percentage of blocks in which all sample tested positivea |
---|---|---|---|---|---|
GLRaV-3 | 137 | 94 | 68.6 | 36 | 38.3 |
GLRaV-2 | 137 | 16 | 11.7 | 1 | 6.3 |
GLRaV-1 | 137 | 12 | 8.8 | 0 | 0.0 |
GRBV | 137 | 36 | 26.3 | 8 | 22.2 |
GPGV | 137 | 62 | 45.3 | 5 | 8.1 |
GRSPaV | 127 | 117 | 92.1 | 109 | 93.2 |
GVA | 137 | 20 | 14.6 | 3 | 15.0 |
GVB | 137 | 9 | 6.6 | 4 | 44.4 |
ToRSV | 127 | 1 | 0.8 | 0 | 0.0 |
ArMV | 127 | 1 | 0.8 | 0 | 0.0 |
GFkV | 137 | 60 | 43.8 | 18 | 30.0 |
GRVFV | 127 | 17 | 13.4 | 1 | 5.9 |
GAMaV | 127 | 16 | 12.6 | 0 | 0.0 |
GSyV-1 | 127 | 7 | 5.5 | 0 | 0.0 |