- Rust Issues: Yellow rust and leaf rust are serious constraints to wheat production. Historically, stem rust was the major constraint.
- Ug99 Status: No Ug99 races have been detected in the USA
Wheat rust surveillance and monitoring activities in the USA are coordinated by the USDA-ARS Cereals Disease Laboratory, St Paul, Minnesota (Stem and Leaf Rust) and the USDA-ARS at Washington State University (Yellow Rust). Full details of all rust activities in the USA can be found on the respective web sites.
The Cereals Disease Lab issues regular Cereal Rust Bulletins and Rust Observation Maps. The most recent of which are copied below:
2015 Cereal Rust Bulletins:
2015 cereal rust observation maps
(Maps are updated as reports are received.)
2014 Cereal Rust Bulletins:
- Bulletin #1 (4/3/14)
- Bulletin #2 (4/16/14)
- Bulletin #3 (5/9/14)
- Bulletin #4 (5/22/14)
- Bulletin #5 (6/5/14)
- Bulletin #6 (6/19/14)
- Bulletin #7 (7/3/14)
- Bulletin #8 (7/17/14)
- Final bulletin for 2014 (8/14/14)
2014 rust observations maps
(Maps are updated as reports are received.)
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Wheat leaf rust (9/24/14)
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Wheat stem rust (8/8/14)
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Wheat stripe rust (9/24/14)
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Oat stem rust (8/22/14)
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Oat crown rust (8/22/14)
- Barley leaf rust (7/16/14)
2013 Cereal Rust Bulletins:
- Bulletin #1 (3/27/13)
- Bulletin #2 (4/11/13)
- Bulletin #3 (5/1/13)
- Bulletin #4 (5/15/13)
- Bulletin #5 (5/30/13)
- Bulletin #6 (6/13/13)
- Bulletin #7 (6/26/13)
- Bulletin #8 (7/11/13)
- Final bulletin for 2013 (8/15/13)
2013 rust observations maps
(Maps are updated as reports are received.)
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Wheat leaf rust (8/6/13)
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Wheat stem rust (8/14/13)
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Wheat stripe rust (7/23/13)
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Oat stem rust (8/6/13)
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Oat crown rust (8/6/13)
- Barley leaf rust (8/14/13)
2012 CDL Cereal Rust Bulletins:
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Bulletin #1 (3/27/12)
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Bulletin #2 (4/11/12)
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Bulletin #3 (4/25/12)
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Bulletin #4 (5/8/12)
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Bulletin #5 (5/23/12)
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Bulletin #6 (6/6/12)
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Bulletin #7 (6/27/12)
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Bulletin #8 (7/20/12)
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Bulletin #9 Final
2012 CDL rust observations maps
(Maps are updated as reports are received.)
Situation Updates: