Aproach® Prima Onmira™ active

  • Fungicide


  • 3
  • 11

Stop the clock on crop disease

Disease moves fast to destroy crop yields. You need a fungicide that works just as fast. Aproach® Prima fungicide has two modes of action that are proven to work against the most resistant diseases, offering both preventative and curative properties. Don't wait until it's too late; protect your plants now.

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Works Fast

Aproach® Prima fungicide provides uptake in plants that is nearly twice as fast as competitors, thanks to the active ingredient picoxystrobin. Its varying movement properties quickly surround and penetrate each leaf and stem, providing systemic protection. Aproach Prima is rainfast within one hour and residual for up to three weeks.

Preventative and Curative

Aproach® Prima fungicide provides two modes of action: It is both preventative and curative. This allows for a greater application window. Aproach Prima is tough against fungicide-resistant diseases such as frogeye leaf spot, thanks to its second active ingredient: cyproconazole.

Better Bottom Line

Aproach® Prima fungicide is shown to improve crop quality and increase yield, meaning a greater return on investment. It’s registered by the U.S. Environmental Protection Agency for use in multiple crops, meaning one simple choice for growers with many crops to protect.

    Aproach Prima – Stop the Clock on Crop Disease

    Watch video

    The impact of fungal disease on crop yields can be significant. As humidity increases during the summer months, so does the development of fungal diseases. The longer you wait to take action, the more disease will spread and your crop will take the hit. Applying  Aproach Prima fungicide can put a stop to disease progression and stop the clock on your yield loss.


    Read what farmers and retailers have to say about Aproach Prima.

      Corn stalks

    Bushel Gain

    “We see a benefit in using Aproach Prima when it comes to standability and overall plant health and bushel gain even when disease is not present.”

    - Michael Delaney, Pioneer Sales Representative, Delaney Ag Service, Cascade, IA

      Unidentifiable People in field

    Good Economic Option

    “A lot of our growers use TruChoice, so Aproach Prima is a good option to use that. It’s a good choice economically.”

    - Troy Shickley, Shickley Air Service, Hastings, NE

      Corn ear

    Keeps Plants Healthy

    “The season is long here, so that’s one reason I like a fungicide like Aproach Prima on my corn, because it keeps the plants healthy through cool, late seasons.”

    - Tom Drummy, Farmer, Ryan IA

    Hear More From Retailer Jeremy Leininger

    Controlled diseases

    This product delivers effective disease control against the following:

    • Anthracnose
    • Brown Spot
    • Downy Mildew
    • Eyespot
    • Frogeye Leaf Spot
    • Gray Leaf Spot
    • North Corn Leaf Spot
    • Northern Corn Leaf Blight
    • Pod and Stem Blight
    • Powdery Mildew
    • Rust
    • Southern Rust
    • Stripe Rust
    • Tar Spot
    • Target Spot
    • Yellow Leaf Blight

    Refer to the Product Label for complete product efficacy information.

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    State Registrations

    • Registered
    • Unregistered

    Technical Specifications

    • Active Ingredient

      Picoxystrobin; cyproconazole

    • Fungicide Group

      Aproach® Prima fungicide contains the active ingredients picoxystrobin and cyproconazole, which are Group 11 and Group 3 fungicides, respectively, based on the mode of action classification system of the Fungicide Resistance Action Committee of Croplife International. 

    • Approved Use

      Aproach Prima is a broad-spectrum fungicide for control of foliar plant diseases and has preventive, curative and systemic activity. 

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    Tell me more

    State registrations for Aproach are pending. Contact your local Corteva sales representative for details and availability. Aproach Prima may not be registered for sale or use in all states. Resicore and SureStart II are not registered for sale or use in all states. Resicore and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always refer to the product labels for complete details and directions for use. Fontelis is not labeled for use on peanuts in California. Always read and follow label directions.