Analysis of grapevine viruses
Selecting a virus testing package depends on what you are trying to achieve.
Single virus check
The single virus check is used to detect the presence of a specific virus. It is useful to determine if a problematic virus is present or has been eliminated.
Pre-grafting screen
The pre-grafting screen can be used to check rootstocks and scions for potential infection prior to top working and nursery propagation. This screen tests for the presence of grapevine leafroll-associated viruses 1 and 3 as well as grapevine virus A.
In cases where Chardonnay grapevines are involved in the grafting process, the four-virus screen is recommended, as it also tests for the presence of grapevine leafroll-associated virus 2 which is associated with graft incompatibility.
Complete virus screen
The complete virus screen looks for the most common viruses that affect grapevines. This screen is recommended for imported samples and as a general screen for rootstocks, propagation materials from source blocks and nurseries.
Complete virus screen testing includes:
- Grapevine leafroll-associated viruses (detecting six virus types: 1, 2, 3, 4, 4/6 and 4/9)
- Grapevine rupestris stem pitting-associated virus (GRSPaV)
- Grapevine virus A (GVA)
- Grapevine virus B (GVB)
- Grapevine fleck virus (GFkV)
- Grapevine Pinot Gris virus (GPGV)
Ordering virus testing
Virus testing can be ordered online using our Plant testing web form. Click the Submit samples button at the top right of the page and select ‘Plant testing’ from the wine and grapes menu. If your samples are coming from outside South Australia, your samples will need additional documentation, which will be supplied as you complete the order form.
Useful links
- Grapevine tissue sampling protocol for virus diagnostics
- AWRI grapevine leafroll-associated virus 3 fact sheet (LR3)
- AWRI grapevine red blotch virus fact sheet (GRBV)
- AWRI grapevine yellow speckle disease fact sheet
- AWRI grapevine virus A and shiraz disease article (GVA)
- Wine Australia fact sheet on grapevine leafroll virus (LR1, LR2, LR3, LR4, LR4/6, LR4/9)
Contact our Customer Service team for more information on choosing the right test, sampling, packaging, transport and biosecurity paperwork to accompany samples.
Email: customerservice@affinitylabs-admin
Tel: 08 8313 0444
Enquire
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