Phobos® FC
Elevated Disease Protection
Phobos® FC is a high-performance fungicide that, when used in foliar applications, delivers uniform leaf coverage through even active ingredient distribution, helping growers achieve consistent disease control and protect yield potential. It dries stronger, resisting rain wash-off to maintain coverage through tough, unpredictable weather and reduce the need for re-sprays.
Active Ingredient Content
Prothioconazole - 3 lb /gal
Group - 3 Fungicide
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Delivers even leaf coverage to provide reliable, broad-spectrum disease control in high-pressure environments
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Maximizes protected leaf area to improve performance in high-pressure conditions
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Dries stronger on the leaf surface to resist rain wash-off and hold up in unpredictable weather
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Protects yield potential through critical crop growth stages
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Mixes easily with liquid fertilizers, micronutrients, and other crop inputs for efficient, single-pass applications and less downtime
*See label for specific uses, crop registrations, and groups. Not all products are registered in all states.
Watch Phobos® FC in Action
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play_circleFoliar Excellence
Discover the nanotechnology behind Phobos FC's powerful application advantages. -
play_circleSugarbeet grower uses Vive fungicides
Sugarbeet grower Lee Gudajtes uses AZteroid® FC 3.3, AZterknot®, and Phobos® FC fungicides. He has seen a significant improvement in disease protection and sugar content.
- Product Portfolio Brochure Download PDF
- Phobos® FC Sell Sheet Download PDF
- Phobos® FC Corn Sell Sheet Download PDF
- Phobos® FC Peanut Sell Sheet Download PDF
- Phobos® FC Sugarbeet Sell Sheet Download PDF
- Corn Solution Guide Download PDF
- Peanut Solution Guide Download PDF
- Sugarbeet Fungicide Portfolio Download PDF
- Sugarbeet Solution Guide Download PDF
Additional Articles to Learn More
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Phobos® FC Case Study: Optimizing Fungicide Performance & Application
November 7, 2025
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Laying the Groundwork: The Power of In-Furrow Disease and Pest Protection in Corn
April 22, 2025 - Corn growers know better than anyone: success starts underground. From the moment a...
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Cercospora Leaf Spot and It's Impact on Sugarbeets
February 23, 2024 - Cercospora leaf spot, caused by the fungus Cercospora beticola, is one of the...
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Strategies for Combatting Rhizoctonia in Sugarbeets
February 9, 2024 - Sugarbeet production faces numerous challenges, with diseases posing a...
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Red, White, and Blueberries
July 3, 2023
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Combat Peanut Diseases
By: George Huckabay, Southern Agronomist May 25, 2023
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Precision Chemistry Enhances Foliar leaf coverage
Foliar spray applications are often wasted or don't reach their full potential when they are applied...
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The first 40 days
March 6, 2023
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How sweet it is… to increase your sugar content!
February 27, 2023 By: David Reif How sweet would it be to walk away this season with a higher sugar...
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Rust and Wheat Don't Mix: AZterknot Does
January 12, 2023 By Victoria Marsh, Western Technical Sales Agronomist
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2022 Vive Field Trial Review
December 21, 2022 By: David Reif
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Get “Superpowered” Potato Plant Health
By: David Reif; Northern Technical Sales Agronomist
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