Peppers growing in the sun.

News and Updates

News and Updates

New race of lettuce downy mildew in the US

(July 1st, 2025) - A new race of Bremia lactucae, Bl: 10US, has been identified and denominated in the Western US. Read the article and learn more about IBEB here. See the official press release here.

 

pepper leaf

Hey pepper fans!

(April 2025) - Reference material for Pepper CMV now available. Check out the white paper.
  • (January 2025) - Reference material for bacterial speck of tomato now available.
  • (August 2024) - Reference material for Pepper Tobamoviruses now available! See the white paper here. Access to seed and isolates here.
East West logo

East-West Seeds joins the CPPSI team

(July 2024) - We are excited to have the pathology experts at EWS's global team join CPPSI and contribute to our mission to standardize plant pathogen strain or race identification and variety resistance determination.
  • (July 1st, 2024) - Denomination of a new lettuce downy mildew race in Europe, Bl: 41EU. Read more here.
  • (May 13th, 2024) - A new race of spinach downy mildew was named, Pe: 20. See more in the Plantum press release.
  • (May 1st, 2024) - Differential seed for the Tomato ToMV Reference Material is replenished!
    • Find Early Pak 7, Mobaci, Moperou, Momor and Geneva differential seed here via USDA-GRIN.
  • (March 4th, 2024) - Differential seed for the Pepper Bacterial Leaf Spot Reference Materials is 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. 

Meetings and Conferences

Bayer seed health

CPPSI presents for the Bayer Seed Health seminar series in Woodland, CA

Kelley presented on the current CPPSI efforts and mission to the Bayer Seed Health team (September 23rd, 2024). Thought-provoking discussions were held on both seed health and plant disease, areas for collaboration and support, as well as a tour of the top notch Bayer facilities in Woodland, CA. 

 

shreenshot of presentation

CPPSI presents for East-West Seed's 9th Crop Protection Conference and Workshop, “Elevating Collaborative Research and Innovation Towards Sustainable Pest Management” 

CPPSI Director, Kelley Clark, presented virtually (July 2nd, 2024) on the benefits of collaborative research in harmonization of disease resistance terminology and the current efforts on the CPPSI working group to provide resources in this area. 

 

geneva333

CPPSI attends the International Seed Federation's Disease Resistance Terminology Expert Group meeting in Geneva, Switzerland

A successful meeting was held in Geneva, Switzerland to discuss disease resistance terminology and outreach as well as meet many of CPPSI’s European colleagues in-person. CPPSI is happy to be a part of this group.

Link to the work of the ISF-DRT Expert Group.

https://worldseed.org/our-work/disease-resistance/overview/