soybean close up

Commenza™ herbicide provides three active ingredients and residual activity for soil applied cross-spectrum broadleaf and grass control in soybeans. Multi-mode of action technology ensures robust performance against resistant and hard to control weeds.


Benefits

Crop Protection Podcast: Commenza Herbicide

File format not supported. Unable to play audio. Please refresh your browser and try again.

Crops

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


Registrations

Now registered in the following provinces:

  • Registered
  • Unregistered

Weeds Controlled

 
Foxtail, GreenOld Witchgrass
Barnyard GrassFoxtail, YellowPanicum, Fall
Canada Fleabane1Horsetail, Field2Pigweed, Prostrate
Carpetweed (pre-emergence only)Jimsonweed (pre-emergence only)Pigweed, Redroot 1,4
Carrot, Wild2Johnson Grass (seedling)Ragweed, Common 1,2,3
CheatgrassLady's-thumb (suppression if pre-plant
incorporated application)
Shepherd's-purse
Chickweed, CommonLamb's-quarters, Common4 Smartweed, Green
Cocklebur3Mallow, Prickly (pre-emergence only)Thistle, Russian
Corn SpurryMustard, WildVelvetleaf
Crabgrass, HairyMustard, WormseedWild Potato Vine
Crabgrass, SmoothNightshade, AmericanYellow Woodsorrel (pre-emergence only)
Dandelion (seedling)Nightshade, Eastern Black 
Foxtail, GiantNutsedge, Yellow (PPI only) 
   
1Populations 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.
2Suppression
3If weed pressure in soybeans is heavy, tank mix with another product that provides a different mode of action
4Include triazline-tolerant biotypes

Technical Specifications

  • Application Method

    Apply Commenza in conventional, conservation tillage or no-till soybean production systems.

    Soybeans: Do not apply to areas where the soil pH is greater than 7.8 and organic matter is less than 2% (both apply) as this may result in decreased crop tolerance.

    Soybean Application Methods: Surface pre-plant, pre-emergence, pre-plant incorporated

    Rainfast: 2 hours

  • Rates
    • 35 g/ac + 225 g/ac +525 ml/ac

    Acres Treated: 20 acres/case

    Water Volume: 10-20 US gal/ac

  • Packaging

    Case:

    • Broadstrike RC: 715 g bottle
    • Metribuzin Mx 75 DF: 4.5 kg jug
    • S-Metolachlor 960: 10.5 L jug
  • Crop Rotation
    • 4 months: winter wheat
    • 10 months: spring wheat, spring barley, oats, soybeans, common beans (dry, snap), lima beans, processing peas, field corn and seed corn
    • Following an application of Commenza in a dry year, the risk of injury to rotational crops may increase in light-textured soils containing less than 2% organic matter due to a higher bioavailability of herbicide residues for plant uptake.
  • Tank Mixes

    Registered: Glyphosate

    Supported: Enlist Duo herbicide (Only for use for use in Enlist E3 soybeans), Enlist 1 herbicide (Only for use in Enlist E3 soybeans)

  • Additional Information

    The pre-harvest interval for Commenza is 90 days.

  • Mixing Instructions
    1. Fill the sprayer tank with ½ to ¾ of the required amount of water
    2. Continue agitation throughout the mixing and spraying procedure
    3. Add the required amount of Broadstrike™ RC and allow time or product to fully disperse. Add the required amount of Metribuzin Mx
    4. If required for a burndown, add liquids or Suspension concentrates such as Enlist 1 or Enlist Duo
    5. Add the required amount of S-metolachlor 960
    6. If required for a burndown, add glyphosate and continue agitation
    7. Complete filling the sprayer tank


East Field Guide

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