Agri-Analysis :: Grapevine Testing :: Seed Testing since 1981.

You are here: To better serve you, Agri-Analysis is now located in Davis within walking distance to UCD campus.
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Testing for:
Lettuce Mosaic Virus Bacterial diseases Grapevine diseases Fungal diseases Seed Health Genetic Traits GMOs

Vineyards Seeds Vegetables Fruits Field Crops Ornamentals Soils GMOs

Our New Location:
950 West Chiles Road
Davis, CA 95618


Agri-Analysis LLC is a proud member of:

The Napa Valley Grape Growers Association

The California Seed Association

The American Phytopathological Society

Grapevine Testing and Other Services

If you have budwood you want to propagate, or, if you have a production problem in your vineyard, and it is related to the presence of one of the commonly-encountered viral, fungal, or bacterial plant pathogens of Vitis spp., there is a high probability of detection given the proper sample at the right time of the year. Agri-Analysis provides assays to detect the following grapevine pathogens:

  • grapevine geminivirus aka grapevine red blotch associated virus (GRBaV)
  • Grapevine leafroll-associated virus type 1 (GLRaV-1)
  • Grapevine leafroll-associated virus type 2 (GLRaV-2)
  • Grapevine leafroll-associated virus type 3 (GLRaV-3)
  • Grapevine leafroll-associated virus type 4 & 5 (GLRaV-4&5)
  • Grapevine leafroll-associated virus type 7 (GLRaV-7)
  • Grapevine leafroll-associated virus type 9 (GLRaV-9)
  • Grapevine fleck virus (GFkV)
  • Grapevine fanleaf virus (GFLV)
  • Grapevine virus A (GVA)
  • Grapevine virus B (GVB)
  • Grapevine virus D (GVD)
  • Rupestris stem-pitting associated virus (RSPaV)
  • Grapevine rootstock stem lesion associated virus (GRSLaV, Red Globe virus)
  • Tomato ring spot virus (grapevine yellow vein disease)
  • Xylella fastidiosa (Pierce's Disease)
  • Vine Decline fungi (Esca, Petri disease):
    Phaeoacremonium spp.
    Phaeomoniella chlamydospora
  • Phytophthora spp.
  • Cylindrocarpon spp.
  • Armillaria mellea (Oak root fungus)
  • Eutypa spp.
  • Botryosphaeria spp.
  • Phomopsis viticola
  • Agrobacterium vitis (the tumorigenic strain of A.vitis)
  • Phytoplasmas

Seed Health Testing

Crucifer Seed

  • Black Rot – Xanthomonas campestris pv. campestris



  • Rice Blast – Pyricularia grisea

Tomato and Pepper

  • Bacterial Canker – Clavibacter michiganensis subsp. michiganensis
  • Bacterial Spot – Xanthomonas campestris pv. vesicatoria
  • Bacterial Speck – Pseudomonas syringae pv. tomato
  • TMV, TRSV, ToRSV, ToMV, other viruses

Soil Content of Seed Lot

  • If determination of soil content of the seed lot is needed, please submit a 100 gm sample, and include specific seed lot identification for the report.

Other Services

  • Diagnosis of bacterial, fungal and viral diseases of various other crops
  • Detection and quantification of pathogen propagules (e.g. Phytophthora, Pythium, Verticillium, Aspergillus) in soil
  • Custom Contract research projects

For our service brochure, please click here: page 1 and page 2. Click here to download a sample request form. For testing cost, please contact us or email us at or call 1.800.506.9852.