The Clean Plant Center Northwest holds and maintains a foundation collection of virus-tested, G1-level Pome and Stone Fruit accessions at Washington State University’s Irrigated Agriculture Research and Extension Center in Prosser, WA. These accessions are maintained in insect-proof screen houses to prevent reinfection and are regularly tested to ensure cleanliness. Accessions held in the foundation collection are available for sale and distribution to growers and nurseries across the United States.
Availability – Updated 10.24.2023
All available accessions have undergone a series of diagnostic assays to ensure that they are free of economically important viruses and virus-like organisms. Please click on the following link for the list of Tree Fruit accessions.
Please note that this list contains only accessions that have reached full release status and are presently available; accessions in progress, or accessions that have been removed, are not shown.
Ordering and Distribution
The CPCNW has three defined Pome and Stone fruit sale/distribution periods throughout the year. These are:
Dormant Budwood: Requests taken November 1st to January 31st
Requests must be submitted by January 31st. Orders will be shipped starting the first week of February. A CPCNW Sales Agreement must accompany all Request Forms, and Proprietary Material Distribution Agreement must accompany any requests for proprietary material.
Shoot Tip: Requests taken April 1st – April 30th.
Requests must be submitted by April 30th. Customers are limited to five (5) shoot tips per variety, depending on availability. Shoot tips will be shipping in May (depending on weather) and will only be shipped domestically. A CPCNW Sales Agreement must accompany all Request Forms, and Proprietary Material Distribution Agreement must accompany any requests for proprietary material.
Green Budwood: Requests taken June 1st to August 31st
Requests must be submitted by August 31. Orders will be shipped starting the first week of September and will only be shipped domestically. A CPCNW Sales Agreement must accompany all Request Forms, and Proprietary Material Distribution Agreement must accompany any requests for proprietary material.
Fee Schedule and Payment (All prices in USD)
Fee Schedule: CPCNW has updated its fee schedule for product pricing and processing as of January 1, 2024. Current fee schedule.
Payment: Once the shipment is prepared, an invoice will be sent to the customer. This may be paid either by credit card via our secure payment link or by sending a check for the invoiced amount made out to CPCNW/WSU to 24106 N Bunn Rd, Prosser, WA 99350. Orders will not be shipped until payment has been received.
International Shipments
We have made every effort over the decades to ensure access to our collection for the international community. Recently, there have been dramatic changes in the management of phytosanitary requirements for exports to most countries around the world. The time, effort, and cost involved in ensuring that every shipment complies with the receiving countries’ phytosanitary regime are becoming increasingly prohibitive.
As a result, the CPCNW will only guarantee distribution to the U.S. and Canada and countries whose phytosanitary requirements can be met in-house by the CPCNW. Requests to ship propagative material to counties that require additional testing and/or declarations for pests and diseases not tested for by CPCNW will be declined.
Also, to ensure sufficient time to research and confirm the phytosanitary requirements, the CPCNW requests that the customer send their import permit and additional declarations, in English, to the CPCNW no less than three (3) months before the end of the sale request period. Import permits and additional declarations sent less than three (3) months before the end of the sale request period will only be accepted at the CPCNW Director’s discretion.