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United States Department of Agriculture

Agricultural Research Service

Cooperator's Page
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The purpose of this page is to provide some useful information for our cooperators. If there is any additional information you would like to see here, please let us know. As always, we thank all our cooperators!

Topics covered on this page (click to visit the section of interest):


Other items on the CDL website that may be of interest:

Cereal Rust Survey Listserv List

The Cereal-Rust-Survey listserv list - this list is for the exchange of timely observations from cooperators and CDL staff on the current cereal rust situation throughout the U.S.  Additionally, members will receive messages with links to each Cereal Rust Bulletin as they become available.

We would encourage anyone who has information on the cereal rust situation in the U.S. or an interest in this type of information, to subscribe to the Listserv list for the latest information available.

Rust Updates

For the latest reports on the current cereal rust situation in the U.S., please visit our Cereal Rust Situation Reports page.

Cereal Rust Bulletins

The Cereal Disease Lab (CDL) publishes the Cereal Rust Bulletins biweekly from April through early August.

Germplasm Evaluation

Germplasm evaluations performed by the CDL staff are available on this site. For agronomic and disease observations visit the Hard Winter Wheat Regional Nursery Program (NRPN, RGON and SRPN) website


Guides for Identifying Rust Diseases of Wheat and Barley and Identification and managment of stem rust

Rust identification guide developed by by the multi-state extension and research committees for small grain diseases, NCERA-184 & WERA-97.  (en espanol, en francais)

Guide for identification and management of stem rust on wheat and barley developed by by the multi-state extension and research committees for small grain diseases, NCERA-184 & WERA-97.

Rust Sampling and Reporting

Please review the rust sampling and reporting guide recommendations for making cereal rust collections and reporting observations. Use the following table to determine where to send your cereal rust samples for race identification.


Send to:

Stem rusts (including aecia on barberry)

Wheat leaf rust

Oat crown rust (including aecia on buckthorn)

Barley leaf rust

USDA-ARS, Cereal Disease Laboratory
University of Minnesota
1551 Lindig Street
St. Paul, MN 55108

Stripe rust (barley and wheat)

Dr. Xianming Chen
361 Johnson Hall
Washington State University
Pullman, WA 99164-6430


Rust Collection Forms

We encourage cooperators to include our newly created rust collection form (standard pdf or fillable pdf) with each rust sample sent to the Cereal Disease Laboratory.  We will no longer provide the card stock type collection forms used in the past. 

Please review the rust sampling and reporting guide prior to sending samples.  As always your assistance is greatly appreciated!

Rust race analysis training videos

Matt Rouse describes how-to collect rust, isolate a single pustule of rust, increase rust, properly store spores, inoculate differentials, phenotype reactions, and race nomenclature as practiced by the Cereal Disease Laboratory in Saint Paul, Minnesota.


Cooperators often ask us where we obtain some of our more unusual supplies. This supplies list may be of help.

Last Modified: 8/31/2016
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