Guardian MAX


Your trusted friend has some new tricks.

Growers have long depended on Guardian™ herbicides to protect their soybeans from hard-to-kill weeds. Now, call for the trusted performance and superior convenience of new Guardian™ MAX. Guardian MAX soybean herbicide delivers early, residual control of hard-to-kill weeds.


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Field untreated and treated with Guardian MAX

Guardian MAX herbicide delivers early, residual control of tough weeds like dandelion, yellow nutsedge and annual sow thistle. It also provides systemic and lasting burndown for hard-to-kill perennials, such as prickly lettuce and wild carrot. Powerful, broad-spectrum activity allows you to keep a clean field during the critical weed-free period.

With two modes of action, Guardian MAX herbicide helps you manage resistance and guard against weed shifts. For identity preserved (IP) or glyphosate-tolerant (GT) soybeans, choose Guardian MAX herbicide for your first pass across the field.


Young soybeans

Guardian MAX can be applied as a burndown for any type of soybean, including IP and conventional, or in-crop on GT soybeans including Roundup Ready 2 Xtend®.


Soybean field Guardian MAX comes with a high-load K-salt glyphosate formulation and treats 30 acres per case. One Guardian MAX MEGA tote treats 600 acres.



Soybean, Glyphosate Tolerant (Glycine max)

Soybean, IP (Glycine max)


Guardian MAX is registered for use in Eastern Canada on glyphosate-tolerant soybeans including Roundup Ready 2 Xtend (burndown or in-crop), IP and conventional soybeans (burndown only).

  • Registered
  • Unregistered

Guardian MAX offers superior convenience and protection against hard-to-kill weeds.

Early and residual weed control is critical to protecting your crop’s yield potential. Guardian MAX herbicide offers dependable protection.

  • Flowering dandelion
  • Dead dandelions

Guardian MAX delivers residual early-season control of dandelion, wild carrot and other tough perennials using a powerful, high-load formulation. Its dual mode of action helps manage resistance and can be applied as a burndown for any soybean.

Technical Specifications

  • Herbicide Group

    Group 2
    Group 9

  • Application Timing

    For pre-plant burndown, or post-emergent (glyphosate-tolerant soybeans including Roundup Ready 2 Xtend varieties), apply before the initiation of flowering.

  • Formulations

    High-load K-salt glyphosate formulation.

  • Packaging

    One jug treats 15 acres, one case treats 30 acres and one tote treats 600 acres

  • Crop Rotation

    Crop rotation depends on crop and soil pH. Please refer to product label for complete use instructions.

  • Mixing Instructions
    1. Fill clean tank about ¼ full with fresh water.
    2. Turn on full agitation.
    3. Add the proper amount of Classic 25 DF herbicide to the water in the spray tank with the agitator running. Maintain full agitation until water-soluble bags are completely dissolved and product is fully dispersed. Continuous agitation is required to keep the product in suspension.
    4. After Classic 25 DF herbicide has been well mixed and is in suspension, add the tank mix partner, if applicable.
    5. Add a recommended amount of spray adjuvant (if required).
    6. Fill the remainder of the spray tank with clean water.
    7. On repeat tank loads, ensure that the amount of spray solution left in the tank from the previous load is less than 10% of the volume about to be mixed.
  • Rate of Timing

    Please refer to product label for complete use instructions

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