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Table 3 Prevalence of major grape viruses in V. vinifera wine grapes in Ontario

From: Survey for major viruses in commercial Vitis vinifera wine grapes in Ontario

Viruses detected

Total no. of vine samples tested

No. of positive samples

Percentage of positive samples (%)

GRSPaV

563

473

84.0

GLRaV-3

657

315

47.9

GFkV

657

143

21.8

GPGV

657

142

21.6

GRBV

657

120

18.3

GVA

657

41

6.2

GAMaV

563

34

6.0

GRVFV

563

33

5.9

GLRaV-2

657

29

4.4

GVB

657

20

3.0

GLRaV-1

657

14

2.1

GSyV-1

563

9

1.6

ToRSV

563

9

1.6

ArMV

563

1

0.2

  1. The full names of viruses that are included in this survey are provided in the abbreviations