• Herbicide


  • 2

With residual activity and control of tough perennial broadleaf weeds, Classic™ herbicide is a popular choice for growers of identity-preserved (IP), conventional and glyphosate-tolerant (GT) soybeans.


Hard-to-control weeds

Soybeans in rows

Classic helps you manage some of the toughest weeds including nutsedge, sow-thistle and dandelions.


Soybeans in rows

Low use rate and easy to tank-mix with PRE and POST herbicides.

Application flexibility

Soybeans in rows

Classic has a wide window of application from 14 days pre-plant up to early post-emergence.



Soybean (Glycine max)

Weeds Controlled

Weeds controlled at 14.4 g/ac + Non-Ionic surfactant at 0.2% v/v

*Provides Dandelion top growth control only (4 to 6 weeks)


Additional weeds controlled when tank-mixed with glyphosate at 900 g ae/ha

  • Annual sow-thistle
  • Prickly lettuce
  • Bean, Adzuki (Vigna angularis)
  • Dandelion
  • Nutsedge, Yellow (Cyperus esculentus)
  • Pigweed, Redroot (Amaranthus retroflexus)
  • Ragweed, Common
  • Velvetleaf
  • Wild Carrot

Refer to the Product Label for complete product efficacy information.

Find labels for this product


Classic herbicide is registered for use in Eastern Canada.

  • Registered
  • Unregistered

Technical Specifications

  • Herbicide Group
    Group 2
  • Rates

    14.4 g/acre

    Water volume: 15-20 US gal/ac

  • Application Timing

    When to apply: Pre-plant to 3 trifoliate stage. Do not apply after the initiation of flowering.

    Rainfast: 2 hours 

    Pre-harvest interval: Up to 60 days before harvest

  • Packaging
    • 288 g bottle
    • 576 g bottle

    Acres treated:

    • 20 ac/288 g bottle
    • 40 ac/576 g bottle
  • Crop Rotation

    Crop rotation varies by crop and soil pH. 

  • Mixing Instructions
    1. Fill clean tank about ¼ full with fresh water.
    2. Turn on full agitation.
    3. Add the proper amount of Classic 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 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.
  • Grazing

    Do not graze or cut for hay.

  • Tank Mixes


    • Assure II
    • Glyphosate
    • Metribuzin 75 DF
    • Imazethapyr SL


    • Elevore
    • Enlist Duo™3
    • Enlist™ 13

    3Only for use in Enlist E3™ soybeans

Other Products

Classic is a key member of a diverse family of herbicides.




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

East Field Guide
View a comprehensive listing of information on Corteva Agriscience products available in Eastern Canada.