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Seed health testing services from SGS – identify seed viruses and pathogens and meet international standards.


Seed borne viruses and pathogens can cause damage or death to crops, adversely affecting yields and marketability. Our trained scientists can help you to identify which plant disease(s) are affecting your crops, allowing you to make informed decisions about domestic sales and exports. With cutting edge technology and the latest testing methods we have the equipment and experience to meet all your seed health testing needs.

Testing services

We can test for a wide variety of organisms on many species of seed:

  • Wash test (nematodes, cysts, spores)
  • Blotter test (fungi, bacteria)
  • Plate culture tests (fungi, bacteria)
  • ELISA test (viruses, bacteria)
  • PCR test (bacteria)

Test for and identify seed health issues including:

  • Downy mildew
  • Fruit blotch
  • Stem blight
  • Verticillium
  • Verticillium wilt
  • Black rot
  • Brown spot
  • Seedling blight
  • Didymella
  • Acidovorax
  • Bacterial wilt
  • Corn smut
  • Bud blight  
  • Goss’s Wilt
  • Stewart’s Wilt

When to test

Seed health testing should be done when pathogens are suspected for crop or seed damage. It should also be conducted when local, regional, national or international rules apply to seed and crop shipping.

Seed health standards and tests differ from country to country. Ensure your crops meet the destination market requirements with our testing services.

Seed Health Testing and Export Services

Our seed health testing services include testing for seed pathogens and viruses, seed treatment application verification (STAV) testing, and protein, oil and moisture (POM) analysis.

In North America we are accredited by the International Seed Testing Association (ISTA) and are ISO certified. We are also accredited by USDA’s National Seed Health System (NSHS) in the USA, and we are AQIS approved for Australia.

To assist in your exports, SGS is approved for seed sampling, visual seed inspections and laboratory testing in order to substantiate the issuance of phytosanitary certificates. We can issue both ISTA Orange and Blue Certificates, providing the added security companies require when shipping seed internationally.

To discuss how our seed testing services can help your ensure the health and quality of your seeds, contact us today.