Guardian™ herbicide gets your soybeans off to a clean, weed-free start with knockdown and residual activity on the toughest broadleaf weeds, including dandelion, annual sow thistle and yellow nutsedge (suppression).

Ask an Agrologist


Used for burndown in all soybeans, or in-crop on glyphosate-tolerant (GT) soybeans only, Guardian herbicide delivers one-pass, residual control of tough broadleaf weeds.

Outstanding performance on dandelions

You’ll get all the weeds that glyphosate controls, plus dandelion, yellow nutsedge (suppression), annual sow-thistle, lamb’s-quarters, prickly lettuce, ragweed, redroot pigweed, velvetleaf, volunteer adzuki beans (suppression) and wild carrot (suppression).

Guards against weed shifts

With two groups of chemistry (Group 2 and Group 9), packaged in a convenient 10-acre jug, Guardian also helps guard against weed shifts and resistance.


Below lists the crops that Guardian herbicide can be used on.



Soybean (Glycine max)


Now registered in the following provinces:

  • Registered
  • Unregistered

Technical Specifications

  • Application Method

    Aerial: Not registered for aerial application.



  • Approved Use
    Refer to the Guardian label for complete use instructions.
    Refer to the Controlled Weeds list for the full list of weeds.
  • Packaging

    Guardian is packaged in a convenient 10-acre jug.

  • Crop Rotation
    Check the label for recropping guidelines for various crops.
  • Herbicide Group

    Group 2

    Group 9