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Stripe Rust

Overview

Stripe rust, a product of Puccinia striiformis, is particularly destructive to wheat crops. Also known as yellow rust, this fungal disease can cause substantial yield losses if not promptly identified and managed. In severe cases, stripe rust can lead to up to 60% yield loss. The quality of the grain can also suffer, with lower protein content and test weight.

(Image Credit: Howard F. Schwartz, Colorado State University, Bugwood.org)

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Stripe Rust Impact on Wheat

Stripe rust impacts various parts of the wheat plant, but its most noticeable effect is on the leaves. The fungus saps the nutrients from the leaf, causing it to yellow and die prematurely. This disrupts the plant's photosynthesis process, reducing its ability to produce and fill grain, resulting in shriveled kernels and diminished yield.

The disease can also compromise the plant's overall health and vigor. Infected plants may exhibit reduced tillering and may become more susceptible to other diseases and pests.

How to Identify Stripe Rust

Stripe rust is easily distinguishable by its unique yellow-orange spore masses that manifest as elongated stripes on the wheat plant's leaves and stems. These stripes, more yellow than the reddish-brown pustules associated with leaf and stem rust, serve as the primary indicator of stripe rust.

The disease initially manifests as tiny, yellow spots on the leaves. As it progresses, these spots elongate into distinctive stripes filled with yellow-orange spores. These stripes often trace the leaf's veins, hence the name 'stripe rust'.

Geographic Reach of Stripe Rust

Stripe rust flourishes in cooler temperatures, between 50-60 degrees Fahrenheit (10-15 degrees Celsius), and in regions with consistent rainfall or dew. It is prevalent in the Pacific Northwest and the Great Plains of the United States, as well as in parts of Europe, Asia, and Africa.

(Image Credit: Darrell Wesenberg, Bugwood.org)

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Timing of Stripe Rust

Stripe rust usually surfaces in the early to mid-growing season, often following periods of cool, wet weather. However, it can also emerge later in the season if conditions are favorable. Early identification is crucial as stripe rust can spread rapidly, especially under windy conditions.

How to Manage Stripe Rust in Wheat

To manage stripe rust in wheat our agronomists recommend applying GCS Azoxyprop or GCS Azoxy at the first appearance of disease symptoms.

Always refer to the product label for specific application rates and instructions.

Disclaimer

© 2014 - 2024 Farmer's Business Network, Inc. All rights Reserved. The sprout logo, “Farmers Business Network”, “FBN”, “FBN Direct” are trademarks or registered trademarks of Farmer's Business Network, Inc. This content was written by Norm℠, reviewed and edited by Stephanie Nikolopoulos.

This content was generated with the assistance of Norm℠, FBN’s artificial intelligence (AI) Ag Advisor, based on a dataset of information containing general industry best practices and research. The AI model did not use specific external sources to generate this content. Our process involves using AI to aid human subject matter experts with the initial drafting and/or refinement of content.

The information and content provided is believed to be reliable, but its accuracy is not guaranteed. The content is provided for informational purposes only. It is not intended to be a substitute for specific agronomic, business, or professional advice, and should not be relied upon as such. Neither Farmer's Business Network Inc. nor any of its affiliates makes any representations or warranties, express or implied, as to the accuracy or completeness of the statements or any information contained in the material and any liability therefore is expressly disclaimed. If you have any questions or feedback about the content, please feel free to contact us or visit our FAQ (https://www.fbn.com/community/blog/norm-faq).

Every product that labels STRIPE RUST as a weed, pest, or disease the product can be applied against is shown below. Click any product for label and more information.
A-Zox 25SCA-Zox 50WDGAcadia™ 2 SCAcadia™ 2 SCAdastrio™Aframe™Aftershock®Aprovia® AceArius™ 250Azoxy TebAzoxyStar®Azoxystrobin SCAZterknot®AZteroid® FCAZteroid® FC 3.3Azure™ Xtra FungicideBarrierBravo Ultrex®Bravo Ultrex®Bravo Weather Stik®Bravo Weather Stik®Briskway®Buzz Ultra - DFBuzz Ultra DF™Catamaran®Cercos™ FungicideChloronil® 720Chlorothalonil 720Chlorothalonil 82.5DF SelectChlorothalonil-ZnCustodia®Dexter® SCDexter™ MaxDexter™ XCELDithane® 75DF Rainshield® Specialty FungicideDithane® F45 Rainshield® FungicideEcho® 720 Agricultural FungicideEcho® 90DF Agricultural FungicideEcho® Zn Agricultural FungicideEluvium™Endow™ GEquation™Equation™ SC FungicideEquus® 500 ZNEquus® 720 SSTEquus® 720 SSTEquus® DFEvito® 480 SCEvito® T FungicideFolicur® 3.6 FFore® 80WP Rainshield® Specialty FungicideFortix® FungicideGCS Azoxy 2SCGCS Tebustrobin SCGold Rush®Headline® fungicideHeadline® SC fungicideHeadway®Headway® GHelmstar Plus SCHeritage® FungicideHeritage® GHeritage™ ActionHeritage™ TLInitiate® 720 Flowable FungicideInitiate® ZNKoverall® FungicideKoverall® FungicideLucento™ManKocide®Manzate® Pro-Stick™ (UPI)Manzate® Pro-Stick™ T&OMazolin™Metlock® CTMiricell™Monsoon®Muscle® 3.6FNexicor™ Xemium® brand fungicideOmni® Brand Chlorothalonil 720SCOnset™ 3.6L FungicideOranil™ 6LOrius® 3.6FOverrule®Penncozeb® 75DFPeriapt™Praiz® NGPraiz™Preemptor® EQPreemptor™ SC FungicidePriaxor® Xemium® brand fungicideQuadris® FlowableRialto™ 720 FRoper® DFRoper® DF Rainshield™RustEaseSatori® FungicideTebazTebu-Crop 3.6FTebucon® 3.6F FungicideTebuStar® 3.6LTebuzol® 3.6FTepera™Tetraban®Tetraban® FungicideToledo®TopGuard® EQ FungicideTopguard® FungicideTrevo®Trevo® PackedTrivapro™ ATwinLine® FungicideUnicorn DFUnion™ Fungicide SCVabro™Veltyma® fungicideVertisan®Viathon®Vibe™Willowood Azoxy 2SCWillowood Pyrac 2ECWillowood Teb 3.6SCWillowood Tebustrobin SCZolera™ FX Fungicide