Prefix - Herbicide Product & Label Information | Syngenta US
Go to Section
The Flexibility to Control on Both Sides of Planting.

Effective when applied before or after planting, Prefix® herbicide offers the power and residual control to perform on both sides of planting.


Product Details

Prefix Herbicide

Extend residual activity against key grass and broadleaf weeds and maintain clean fields with Prefix® herbicide. Application flexibility enables Prefix to be applied either pre-emergence or early post-emergence in soybeans. It is also available as a dicamba herbicide tank-mix option.

Active Ingredients:

S-metolachlor, Sodium Salt of Fomesafen

Resistance Management:

Label Details

Use Rates
Weeds, Pests & Diseases
Special Labels
Worker Safety

    Restricted Entry Interval:

    PPE required for Applicators, Mixers or Loaders:

    PPE required for Early-Entry Workers:

    Product Benefits

    • Provides timely weed management using 2 different sites of action to manage key ALS- and glyphosate-resistant weeds
    • Delivers extended residual activity against key grass and broadleaf weeds
    • Provides excellent crop safety
    • Is available as a dicamba herbicide tank-mix option, expanding options for weed resistance management
    • Offers flexibility of pre- or early post-emergence application in soybeans

    Where to Buy

    Showing results for zip code ZIPCODE, if this is not correct click here to change.

    Syngenta News

    Top Stories From Thrive

    Thrive is your national source for agricultural news and information from Syngenta. Read articles about innovation from the lab to the field and stories about the people who are empowering farm communities across the country.

    Go To Thrive

    Agronomic News

    "Know More, Grow More" a Syngenta agronomy blog, provides the latest agronomic insights and crop management advice. Browse our blog to read the latest insights from the field.

    Go To Know More, Grow More
    CP Products