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Lontrel™ XC Herbicide

The most effective in-season thistle control available – right down to the roots.


  • Thistle control. Group 4 Lontrel translocates throughout plants for complete control of Canada and sow thistle
  • Second year benefit. A 73% thistle stand reduction the year after application.
  • Flexibility. Choose the rate option that matches the size of your thistle problem and budget.
  • ​NEW​ XC formulation. A convenient, higher concentrated solution.


Weeds controlled1

  • Alsike clover
  • Canada thistle
  • Common groundsel
  • Perennial sow thistle (top growth)
  • Ragweed
  • Red clover
  • Scentless chamomile
  • Tufted vetch
  • Vetch
  • Volunteer alfalfa
  • White clover
  • Wild buckwheat


Weeds Suppressed

  • Ox-eyed daisy
  • Sheep sorrel

1 The performance of Lontrel XC is rate dependent. Control is achieved at the rate of 227 mL/ac (0.56 L/ha) or higher

Crops & Crop Rotation

  • Cereals
  • Grasses
  • Oilseeds
  • Along Fencelines
  • Non-crop land
  • Other (refer to product label)
Crop rotations

The year following application, fields can be seeded to barley, canola, flax, forage grasses, mustard, oats, rye, wheat, or can be summerfallowed.


•4 x 2.67 L case

•26 - 40 acres per jug

– Under cool or dry conditions, control may be seriously reduced

• Water volume
– Ground 40-80 L/ac (10-21 US gal/ac)
– Aerial not registered

When to Apply

Canola stage: 2 to 6 leaf
Cereal stage: 3 leaf to flag
Weed stage: Canada thistle rosette to pre-bud


4 hours

Tank Mixes and Mixing Instructions

Tank mixes

Can be tank mixed with most commonly used grass weed herbicides, including:

  • Odyssey®
  • Select®
  • Compatible with all forms of glyphosate
  • Poast® Ultra
  • VP480
  • MCPA Amine or Ester

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 any tank-mix partners that are a dry formulation
  5. Add the required amount of grassy weed tank-mix partner
  6. Add the required amount of Lontrel XC
  7. Add any required adjuvant or surfactants
  8. Complete filling the sprayer tank with water

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

Grazing & Harvest

Areas treated with Lontrel XC may be grazed immediately following treatment.