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corn field


Group 27


Armezon® herbicide is your ideal tank-mix partner for post-emergent weed control in glyphosate-tolerant corn.

  • Wide application window from 1 to 7 leaf stage
  • Innovative Group 27 chemistry for control of weeds resistant to Group 2, glyphosate and triazine

Labels & SDS



Applicable On


Labels & SDS

Additional Resources

Benefits of Armezon

  • Armezon herbicide is a Group 27, post-emergent herbicide that is quickly absorbed by leaves, roots, and shoots to quickly control target weeds.
  • Corn growers using Armezon tank-mixed with glyphosate get the benefits of multiple modes of action for excellent control of annual grasses and broadleaf weeds.
  • Clean up specialist in field, seed and sweet corn, offering knockdown of key weeds, with unparalleled crop safety.

Performance Trials


Weed control with Armezon® herbicide

Crop with Armezon + glyphosate

Product Info & Application Guide

Weed Management

Weed Class

List of Weeds

Broadleafs - 1 to 8 leaf (except where indicated)


Common ragweed  


Lamb’s quarters2

Redroot pigweed

Volunteer canola (all types)

Wild mustard 

Grasses - 1 to 4 leaf

Barnyard grass2

Foxtail (green, yellow)2


Armezon applied as tank mixture. See Armezon label for tank-mix partners. 


2 Suppression.

3 All types, including glyphosate-resistant biotypes. Apply when kochia is less than 10 cm.

4 Including glyphosate-tolerant biotypes.

Application Tips

Rainfastness – Limited by glyphosate formulation.

  • Follow the glyphosate manufacturer’s recommendation for rainfast guidelines.
  • Denser weed infestation requires the use of higher water volumes.

When to Apply

Crops Staging
Field, seed, sweet and glyphosate-tolerant corn 1 to 7 leaf
Flax 5 to 10 cm

How Much to Apply

One case of Armezon herbicide will treat 160 acres.


Glyphosate-tolerant corn Armezon5
15 ml/ac (37 ml/ha)
Seed, sweet corn Armezon 15 ml/ac (37 ml/ha)
Atrazine6 420 ml/ac (500 g ai/ha)
Assist® adjuvant 1.25% v/v (12.5 L per 1000 L spray solution)
28% UAN6 1.25% v/v (12.5 L per 1000 L spray solution)
Field corn Armezon 15 ml/ac (37 ml/ha)
Atrazine6 420 ml/ac (500 g ai/ha)
Merge® adjuvant6 0.5% v/v (5 L per 1000 L spray solution)
Flax Armezon7,8 15 ml/ac (37 ml/ha)  
Merge6,9 0.5% v/v (5 L per 1000 L spray solution)


Water volume

Ground application only 40 to 80 L/ac (10 to 20 gal/ac)


5 For control of secondary flushes of volunteer canola, a second application of Armezon at 15 ml/ac (37 ml/ha) may be applied, for a total of 30 ml/ac (74 ml/ha) on glyphosate-tolerant corn before the 7 leaf stage.

6 Atrazine, glyphosate, Assist, 28% UAN and Merge are sold separately.

7 Refer to Armezon label for rates and weeds controlled.

8 DO NOT apply Armezon to flax in combination with any other pesticide or injury may result.

9 In place of Merge, Assist plus UAN can be added together as tank-mix partners, each at a rate of 1.25% v/v (12.5 L per 1000 L spray solution).


Mixing Order

  1. Fill sprayer 1/2 full with clean water and agitate.
  2. Add dry tank-mix partners into the spray tank and agitate.
  3. Add Armezon herbicide and thoroughly mix.
  4. After the Armezon herbicide has visibly dispersed, add any liquid herbicide tank-mix partners.
  5. Add either Merge adjuvant to the spray tank or Assist followed by liquid fertilizer (28% UAN) if required.
  6. While agitating, fill the remainder of the tank with water up to the proper level.

Follow Crops

Follow Crops10,11


4 months after application

Winter wheat


1 year after application

  • Alfalfa
  • Canola (incl. Clearfield® canola)
  • Field corn
  • Lentils (incl. Clearfield lentils)
  • Navy beans
  • Peas
  • Potatoes
  • Soybeans
  • Spring wheat


10 Armezon is used in a tank mix; refer to tank-mix partner’s label for additional follow-crop restrictions.

11 If the higher rate of 74 ml/ha is used, fields can only be seeded to winter wheat 4 months after application and spring wheat, field corn and canola the following year.


Pre-harvest interval
45 days after application for corn harvest (silage, fodder or grain).

Tank mixes

Herbicide: Atrazine, glyphosate