For broad-spectrum, rapid weed control in glyphosate-tolerant (GT) corn, leave it to the PRO. New Armezon® PRO provides rapid control of tough weeds, to keep corn clean and protect yield potential.

How it works

Armezon PRO provides fast-acting control of broadleaf weeds and grasses, with residual activity that lasts up to canopy closure. Flexible staging is included with a wide application window between the pre-emergence and 8-leaf stage in GT corn. Combining Group 27 and Group 15 chemistries, it offers multiple modes of action and is tank mixed with atrazine (for conventional corn) or atrazine and glyphosate (for GT corn).

Armezon PRO can also be applied in tank mix with Marksman® herbicide and Roundup WeatherMAX® with Transorb® 2 Technology Liquid Herbicide1 in GT corn.

1 Apply to glyphosate-tolerant corn from emergence up to 5-leaf stage.

Product page Download Tech Sheet

Application timing

Download Staging Chart

Weeds controlled2

Broadleaf weeds

  • Common chickweed3
  • Common lamb's quarters
  • Common ragweed
  • Eastern black nightshade
  • Green pigweed
  • Lady's thumb
  • Redroot pigweed
  • Velvetleaf3
  • Wild mustard


  • Barnyard grass
  • Crabgrass (large)
  • Fall panicum
  • Foxtail (green, yellow)
  • Old witchgrass

Additional weeds controlled by Marksman tankmix4, 5


  • Canada thistle
  • Field bindweed
  • Sow thistle


  • Cleavers
  • Common cokclebur
  • Common waterhemp
  • Corn spurry
  • Cow cockle
  • False ragweed
  • Giant ragweed
  • Green smartweed
  • Hare's ear mustard
  • Indian mustard
  • Russian pigweed
  • Tartary buckwheat
  • Tumble mustard
  • Volunteer adzuki beans
  • Wild buckwheat
  • Wormseed mustard

2 Weeds controlled when applied in a tank mix with atrazine.

3 Suppression only.

4 See Marksman label for details on weeds controlled. Application window limited up to 5-leaf stage in GT corn.

5 Marksman herbicide as a source of atrazine is an optional tank-mix partner*, providing an additional mode of action for enhanced control of glyphosate-resistant weeds. For a tank mix of Armezon PRO plus Marksman herbicide plus Roundup WeatherMax with Transorb 2 Technology Liquid Herbicide, see details in the Armezon PRO product page or technology sheet.

Growers' experience says it all.

  • "Armezon PRO allows us to have a different mode of action on the farm. New modes of action is very important to try and control the weeds that are there and the new weeds that are coming upon us from different areas. Based on the results we experienced with Armezon PRO, we plan on using it again next year."

    Harvey Hill
    Arnprior, ON

Hear about the benefits with Armezon PRO