What's New

Updates on Reference Materials

(March 4th, 2024) - Differential seed for the Pepper Bacterial Leaf Spot Reference Materials has been recently replenished. Order your Early Cal Wonder (ECW), ECW 10R, ECW 20R, and ECW 30R differential seed via USDA-GRIN or CPPSI Services.
- Link to USDA-GRIN - keyword search "CPPSI*" for CPPSI deposited accessions.
- For more information on the disease system, find the Pepper Bacterial Leaf Spot White Paper here.

The Emerging Viruses in Cucurbits Working Group (EVCWG) is charged with improving communication and virus knowledge across the cucurbit industry as well as developing strategies to successfully identify and mitigate virus threats to cucurbit production in the United States.
- Learn about what the EVCWG does.

ASTA Launches Pest Database for Seeds (PeDS)
- Through funding from the USDA's Market Access Program, ASTA developed a Pest Database for Seeds (PeDS), which is now live and functional for searching for pest or host and scientific or common names.

International Bremia Evaluation Board news
Widely prevalent pathogens no longer requiring an APHIS permit
Since, August 9, 2019, certain widely prevalent plant pests have been permitted by regulation (individual permits not required) for interstate movement within the United States. They are listed in a table you can reach with this link. The table is categorized by bacteria, cockroaches (feeder insect trade), fungi, insects, mites, nematodes, and viruses.
International Working Group on Peronospora news
The Plantum isolate collection is a Dutch initiative which comprises reference isolates of viruses, bacteria, fungi and nematodes. The isolates are used for testing resistances in DUS variety research. Naktuinbouw validates the isolates in biotests by inoculating sensitive varieties, and, if possible, also varieties with race-differentiating resistances. CPPSI has the same objective in the USA. Since our goal is to have worldwide standards we are in close contact with similar initiatives in other countries.