Cirpreme™ XC herbicide provides fail-safe control of the most persistent annual and perennial broadleaf weeds in wheat and barley, helping your crops to thrive.

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Cirpreme XC combines two powerful Group 4 active ingredients and one Group 2 to provide Multi-Mode of Action control of unrelenting weeds.  

Convenient application

Sprayer in field spraying with dark clouds in background The XC low-dose, highly concentrated formulation comes in a small, convenient pack size so it’s easy to use.

Tank mix flexibility

Flixweed in field

Apply alone, with MCPA or 2,4-D for complete broadleaf weed control. Tank mix with Simplicity™GoDRI™ to control grass weeds.

More good spray days

Narrowleaf Hawksbeard at seedling stage Arylex™ active, a unique Group 4 active, delivers excellent weed control regardless of crop or weed stage in hot, cold, damp or dry conditions.


Cirpreme XC can be used on the following crops for exceptional weed control.  


Barley (Hordeum vulgare ssp. vulgare)


Wheat, Durum (Triticum durum)

Wheat, Spring Seeded (Triticum aestivum)

Winter Wheat


Registered for use in the prairie provinces and the Peace River region of British Columbia.

  • Registered
  • Unregistered

Weeds Controlled

GRASS WEEDS CONTROLLED Hemp-nettle*1   Volunteer sunflower* 3
Barnyard Grass (1 to 5-leaf) Lamb’s-quarters 1 Wild buckwheat* 
WEEDS CONTROLLED Narrow-leaved hawk’s-beard*  Wild mustard* 1
Annual sow thistle* Plantain (top growth) 3 Wild radis
Annual sunflower* Prickly lettuce*  PERENNIAL BROADLEAF WEEDS CONTROLLED
Ball mustard*1 Redroot pigweed* 1 American dragonhead 
Burdock Round-leaved mallow*  Canada thistle 
Canada fleabane* Russian pigweed*  Henbit 
Chickweed*1 Shepherd’s purse*  Perennial sow thistle 3
Cleavers* (1-9 whorl stage) 1 Smartweed*  Scentless chamomile 
Cocklebur* Stinkweed* 1 Volunteer alfalfa 
Common ragweed*  Stork’s-bill*   WEEDS SUPPRESSED
Cow cockle* Velvetleaf   Kochia 2
Dandelion* Vetch Night-flowering catchfly
Field horsetail (top growth) 3  Volunteer canola (all types) White cockle
Flixweed* Volunteer flax  
1 Populations resistant to Group 2 herbicides exist in certain areas of Eastern Canada. Commenza alone may not control all weed biotypes resistant to Group 2 herbicides.
2 Suppression
3 If weed pressure in soybeans is heavy, tank mix with another product that provides a different mode of action
4 Include triazline-tolerant biotypes

Technical Specifications

  • Herbicide Group

    Group 2

    Group 4

  • Rates

    80 ac/case

  • Application Timing

    When to apply

    Crop stage: 3-leaf to flag leaf emergence


    Research is being conducted 

  • Formulations

    XC formulation: a convenient, higher concentration solution. 

  • Packaging

    Small, convenient pack size "1x0.8kg + 1x6.74 L"

  • Crop Rotation

    The year following application, fields can be seeded to:

    ·         Barley

    ·         Canola

    ·         Flax

    ·         Forage grasses

    ·         Oats

    ·         Mustard

    ·         Peas*

    ·         Rye (not underseeded with legumes, clover or alfalfa)

    ·         Summerfallow

    ·         Wheat

    * For pea rotation, rainfall from June 1 to August 31 in the year of application must be greater than 140 mm (5.5 inches) and annual rainfall must be greater than 175 mm (6.9 inches).

  • Mixing Instructions

    1.       Fill the spray tank with ½ to ¾ of the required amount of water.

    2.       Continue agitation throughout the mixing and spraying procedure.

    3.       Add any required water conditioners.

    4.       Add the required amount of grassy weed tank-mix partner.

    5.       Add any required adjuvant or surfactants.

    6.       Complete filling the sprayer tank with water.

    Note: Do not mix undiluted herbicides in the chem-handler

  • Grazing

    Livestock may be grazed on treated crops seven days following application.

  • Tank Mixes

    ·         MCPA

    ·         2,4-D

    ·         Simplicity GoDRI

    ·         Axial

    ·         Everest


Kevin L., Viking, AB

“Finally a product that controls narrow-leaved hawk’s-beard.”

John B., Wynard, SK

“Easy to use, effective in all the weather conditions of 2017.” 

Sean S., Magrath, AB

"Very impressed with the broadleaf control.”

Other Products

Discover our other Arylex active herbicides for unparalleled broadleaf weed control.

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For more information, download the full label 
Paradigm Herbicide Label
Lontrel XC Herbicide Label

Herbicide Paradigm étiquette principale
Herbicide Lontrel XC étiquette principale

Material Safety Data Sheet (PDF)
Paradigm Herbicide SDS
Lontrel XC Herbicide SDS

Herbicide Paradigm fiche signalétique
Herbicide Lontrel XC fiche signalétique

Product Guide(PDF)

West Field Guide

Before use and for complete product information, please read and follow label directions.