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Herbicide Recommendations for Corn: Soil Applied Grass Herbicides

Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 10 May 2008

Pub 75: Guide to Weed Control > Corn > Herbicide Recommendations for Corn: Soil Applied Grass Herbicides

Excerpt from 2008 Chapter 9, Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Dual II Magnum
  2. Eradicane
  3. Frontier
  4. Frontier (for seed corn)
  5. Corn Herbicide Weed Control Ratings (Table 9-1) (PDF file - 214kb)
  6. Other Herbicide Recommendations for Corn
  7. Corn Leaf Stages
  8. Related Links

 

Dual II Magnum
Trade Name
Active Ingredient s-metolachlor/benoxacor
Formulation 915 g/L
Rate per hectare (active) 1.14 to 1.6 kg/ha
Rate per hectare (product) 1.25 to 1.75 L/ha
Rate per acre (product) 0.5 to 0.7 L/ac

Precautions

  • Apply PPI or PRE. Set incorporation equipment to work soil no deeper than 10 cm.
  • Improved control of yellow nutsedge is obtained when Dual II Magnum is applied PPI.
  • Optimal control of nightshade is obtained when Dual II Magnum is applied PRE.
  • Do NOT use on muck, peat, or high organic matter soils.
  • See tank-mixes for treatments to provide annual broadleaf control or follow with sequential postemergence broadleaf herbicide.
  • Can be tank-mixed with glyphosate or Gramoxone for PP burndown of emerged annual and perennial weeds, see Chapter 6 for more information.

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Eradicane
Trade Name
Active Ingredient EPTC/R25788 (EPTC+)
Formulation 800 g/L
Rate per hectare (active) 3.4 to 4.4 kg/ha
Rate per hectare (product) 4.25 to 5.5 L/ha
Rate per acre (product) 1.7 to 2.2L/ac

Precautions

  • Must be PPI.
  • Do NOT use on seed corn.

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Frontier
Trade Name
Active Ingredient dimethenamid
Formulation 900 g/L
Rate per hectare (active) 1 to 1.25 kg/ha
Rate per hectare (product) 1.1 to 1.4 L/ha
Rate per acre (product) 0.44 to 0.56 L/ac

Precautions

  • Apply PPI or PRE. Set incorporation equipment to work soil no deeper than 10 cm.
  • Improved control of yellow nutsedge is obtained when Frontier is applied PPI. Minimum PPI rate is 1.125 kg/ha.
  • Use the higher rate of Frontier for the control of nightshade and pigweed.
  • Do NOT use on muck, peat, or high organic matter soils.
  • See tank-mixes for treatments to provide annual broadleaf control or follow with sequential postemergence broadleaf herbicide.
  • Do NOT use on seed corn or popcorn.
  • Can be tank-mixed with glyphosate or Gramoxone for PP burndown of emerged annual and perennial weeds, see Chapter 6 for more information.

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Frontier (for seed corn)
Trade Name
Active Ingredient dimethenamid
Formulation 900 g/L
Rate per hectare (active) 1 to 1.125 kg/ha
Rate per hectare (product) 1.1 to 1.25 L/ha
Rate per acre (product) 0.44 to 0.5 L/ac

Precautions

  • For pre-emergence use on seed corn.
  • Use the lower rate on soils of lower organic matter and the higher rate on medium and fine textured soils.
  • Consult the seed supplier for information on the tolerance of seed corn inbred lines prior to the use of Frontier herbicide.

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Related Links

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