Consistent identification of plant pathogen strains and races is still a recognized need for the seed industry, regulatory agencies and academia. Vegetable seed companies make claims of resistance to the level of plant pathogen strains and races. Discrepancies in the naming of pathogens can undermine grower confidence in disease resistance claims affect the accuracy of plant disease diagnostics.
The Collaboration for Plant Pathogen Strain Identification (CPPSI) is a science-based initiative supported by the seed industry to standardize the identification of plant pathogen strains and races based on sets of host differentials and reference plant pathogens
CPPSI partners with global and local associations and organizations to provide the vegetable seed industry with reference materials (seeds, pathogen strains and white papers) that help to consistently identify plant pathogen races and strains.
CPPSI provides a one-stop on-line portal for ordering reference materials. For a nominal fee, CPPSI can also order, assemble and ship you the differentiating hosts, reference strains and/or white paper components of these reference materials.
Here are the latest updates in plant pathogen strains and differentiating hosts.See new research
How do we work
Through collaboration, CPPSI created guidelines and defined information about new fungal diseases.Learn more about us
CPPSI is grateful for the continued support of our sponsors and partners:
BASF • Bayer Crop Science • Enza Zaden • GEVES-MATREF • HM.CLAUSE
Rijk Zwaan • Sakata Seed America • Syngenta Seeds • World Vegetable Center
UC Davis Seed Biotechnology Center • US Department of Agriculture