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Herbicide Recommendations for Corn: Soil Applied Tank-Mixes (For Control of Grass and Broadleaf Weeds)

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 Tank-Mixes (For Control of Grass and Broadleaf Weeds)

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 + Banvel II or Oracle
  2. Dual II Magnum + Banvel II or Oracle + Atrazine 480
  3. Dual II Magnum + Callisto + Aatrex Liquid
  4. Dual II Magnum + Converge Pro
  5. Dual II Magnum + Lorox L + atrazine
  6. Dual II Magnum + Marksman
  7. Eradicane + Atrazine 480
  8. Eradicane + Sencor 480 F or Sencor 75 DF
  9. Frontier + atrazine
  10. Frontier + Banvel II or Oracle
  11. Frontier + Marksman
  12. Lorox L + Atrazine 480
  13. Primextra II Magnum + Banvel II or Oracle
  14. Primextra II Magnum + Callisto
  15. Primextra II Magnum + Lorox L
  16. Prowl 400
  17. Prowl 400 + atrazine
  18. Prowl 400 + Banvel II or Oracle
  19. Prowl 400 + Marksman
  20. Princep Nine-T, Simadex,or Simazine 480
  21. Corn Herbicide Weed Control Ratings (Table 9-1) (PDF file - 214kb)
  22. Other Herbicide Recommendations for Corn
  23. Corn Leaf Stages
  24. Related Links

 

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

Precautions

  • Apply PRE.
  • High rates should be used on heavy grass infestations and for fall panicum. Fall panicum may not be controlled all season. Banvel II or Oracle controls velvetleaf, and triazine (atrazine, cyanazine or simazine) resistant broadleaf weeds.
  • See precautions for Banvel II or Oracle alone.
  • Do NOT apply to coarse (sand) textured soils with less than 2% organic matter.
  • Do NOT use on seed corn or sweet corn.

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Dual II Magnum + Banvel II or Oracle + Atrazine 480
Trade Name Dual II Magnum + Banvel II or Oracle + Atrazine 480
Active Ingredient
s-metolachlor/benoxacor
+ dicamba
+ atrazine
Formulation
915 g/L
480 g/L
480 g/L
Rate per hectare (active)
1.14 to 1.6 kg/ha
0.6 kg/ha
1.01 to 1.49 kg/ha
Rate per hectare (product)
1.25 to 1.75 L/ha
1.25 L/ha
2.1 to 3.1 L/ha
Rate per acre (product)
0.5 to 0.7 L/ac
0.5 L/ac
0.84 to 1.24 L/ac

Precautions

  • Apply PRE.
  • High rates should be used on heavy grass infestations and for fall panicum. Fall panicum may not be controlled all season. Banvel II or Oracle controls velvetleaf, and triazine (atrazine, cyanazine or simazine) resistant broadleaf weeds.
  • See precautions for Banvel II or Oracle alone.
  • Do NOT apply to coarse (sand) textured soils with less than 2% organic matter.
  • Do NOT use on seed corn or sweet corn.

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Dual II Magnum + Callisto + Aatrex Liquid
Trade Name Dual II Magnum + Callisto + Aatrex Liquid
Active Ingredient
s-metolachlor/ benoxacor
+ mesotrione
+ atrazine
Formulation
915 g/L
480 g/L
480 g/L
Rate per hectare (active)
1.14 to 1.60 kg/ha
0.140 kg/ha
1.0 to 1.49 L/ha
Rate per hectare (product)
1.25 to 1.75 L/ha
0.3 L/ha
2.1 to 3.1 L/ha
Rate per acre (product)
0.5 to 0.7 L/ac
0.12 L/ha
0.85 to 1.25 L/ha

Precautions

  • Apply PRE to field, seed and sweet corn.
  • Use high rates for heavy grass infestations.
  • Do NOT apply to corn treated with an organophosphorous insecticide.

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Dual II Magnum + Converge Pro1
Trade Name Dual II Magnum + Converge Pro + Converge 480
Active Ingredient
s-metolachlor/ benoxacor
+ isoxaflutole
+ atrazine
Formulation
915 g/L
480 g/L
480 g/L
Rate per hectare (active)
1.37 kg/ha
53 g/ha
0.528 kg/ha
Rate per hectare (product)
1.5 L/ha
110 mL/ha
1.1 L/ha
Rate per acre (product)
0.6 L/ac
44 mL/ac
0.45 L/ac

Precautions

  • Apply PRE only.
  • Do NOT use on seed corn, popcorn, or sweet corn.
  • Do NOT use on sands, loamy sands and/or soils with less than 2% organic matter.
  • Converge Pro must be applied with Converge 480.
  • Converge Pro1 is a co-pack of Converge Pro and Converge 480.

1 - indicates herbicide sold as a co-pack under this trade name.

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Dual II Magnum + Lorox L + atrazine
Trade Name Dual II Magnum + Lorox L atrazine*
Active Ingredient
s-metolachlor/benoxacor
+ linuron
+ atrazine
Formulation
915 g/L
480 g/L
480 g/L
Rate per hectare (active)
1.14 kg/ha
0.38 to 0.75 kg/ha
0.99 to 1.53 kg/ha
Rate per hectare (product)
1.25 L/ha
0.79 to 1.56 L/ha
2.06 to 3.19 kg/ha
Rate per acre (product)
0.5 L/ac
0.32 to 0.63 L/ac
0.825 to 1.28 kg/ac

Precautions

  • Use ONLY on sweet corn.
  • Make only ONE application per year.
  • Apply in a minimum of 150 L water/ha .
  • Do NOT harvest sweet corn within 50 days of treatment.
  • Apply by ground equipment only.

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Dual II Magnum + Marksman
Trade Name Dual II Magnum + Marksman
Active Ingredient
s-metolachlor/ benoxacor
+ dicamba/atrazine
Formulation
915 g/L
401 g/L (1:2)
Rate per hectare (active)
1.14 to 1.6 kg/ha
1.48 to 1.8 kg/ha
Rate per hectare (product)
1.25 to 1.75 L/ha
3.7 to 4.5 L/ha
Rate per acre (product)
0.5 to 0.7 L/ac
1.5 to 1.8 L/ac

Precautions

  • Apply PRE.
  • High rates should be used on heavy grass infestations and for fall panicum. Fall panicum may not be controlled all season. Banvel controls velvetleaf, and triazine (atrazine, cyanazine or simazine) resistant broadleaf weeds.
  • See precautions for Banvel II alone.
  • Do NOT apply to coarse (sand) textured soils with less than 2% organic matter.
  • Do NOT use on seed corn or sweet corn.

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Eradicane + Atrazine 480
Trade Name Eradicane + Atrazine 480
Active Ingredient
EPTC/R25788 (EPTC+)
+ atrazine
Formulation
800 g/L
480 g/L
Rate per hectare (active)
3.4 to 6.8 kg/ha
1.2 to 1.49 kg/ha
Rate per hectare (product)
4.25 to 8.5 L/ha
2.5 to 3.1 L/ha
Rate per acre (product)
1.7 to 3.4 L/ac
1 to 1.24 L/ac

Precautions

  • Apply PPI.
  • For suppression of moderate to heavy infestations of wild proso millet, use the higher rate of Eradicane with atrazine. For most effective suppression of proso millet delay treatment and planting until mid to late May. Cultivation or a directed post application of linuron may be required to control later emerging proso millet.
  • Do NOT use on seed corn.

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Eradicane + Sencor 480 F or Sencor 75 DF
Trade Name Eradicane + Sencor 480 F or + Sencor 75 DF
Active Ingredient
EPTC/R25788 (EPTC+)
+ metribuzin
or + metribuzin
Formulation
800 g/L
480 g/L
75 WG
Rate per hectare (active)
1.7 to 3.4 kg/ha
0.3 kg/ha
0.3 kg/ha
Rate per hectare (product)
2.13 to 4.25 L/ha
0.6 L/ha
0.4 kg/ha
Rate per acre (product)
0.85 to 1.7 L/ac
0.24 L/ac
0.16 kg/ac

Precautions

  • Apply PPI.
  • Note that this is a reduced rate of Sencor. This tank-mix provides improved velvetleaf control but will not control proso millet, triazine resistant weeds or cocklebur.
  • Do NOT use on seed corn or sweet corn.

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Frontier + atrazine
Trade Name Frontier

+ atrazine

Active Ingredient
dimethenamid
+ atrazine
Formulation
900 g/L
480 g/L
Rate per hectare (active)
1 to 1.25 kg/ha
1 to 1.53 kg/ha
Rate per hectare (product)
1.1 to 1.4 L/ha
2.08 to 3.19 L/ha
Rate per acre (product)
0.44 to 0.56 L/ac
0.832 to 1.28 kg/ac

Precautions

  • Apply PREPLANT, PP or PRE.
  • Use the higher rate of Frontier for heavier weed populations. Control of non-emerged triazine resistant weeds will be limited to pigweed.
  • 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 + Banvel II or Oracle
Trade Name Frontier + Banvel II or Oracle
Active Ingredient
dimethenamid
+ dicamba
Formulation
900 g/L
480 g/L
Rate per hectare (active)
1 to 1.25 kg/ha
0.6 kg/ha
Rate per hectare (product)
1.1 to 1.4 L/ha
1.25 L/ha
Rate per acre (product)
0.44 to 0.56 L/ac
0.5 L/ac

Precautions

  • Apply PREPLANT or PRE.
  • Use the higher rate of Frontier for heavier weed populations. For improved burndown control the addition of glyphosate may be required.
  • See precautions for Banvel II or Oracle applied alone.
  • Do NOT use on seed corn, popcorn or sweet corn.

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Frontier + Marksman
Trade Name Frontier + Marksman
Active Ingredient
dimethenamid
+ dicamba/atrazine
Formulation
900 g/L
401 g/L (1:2)
Rate per hectare (active)
1 to 1.25 kg/ha
1.8 kg/ha
Rate per hectare (product)
1.1 to 1.4 L/ha
4.5 L/ha
Rate per acre (product)
0.44 to 0.56 L/ac
1.8 L/ac

Precautions

  • Apply PREPLANT or PRE.
  • Use the higher rate of Frontier for heavier weed populations. For improved burndown control the addition of glyphosate may be required.
  • See precautions for Banvel II or Oracle applied alone.
  • Do NOT use on seed corn, popcorn or sweet corn.

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Lorox L + Atrazine 480
Trade Name Linuron 480 + Atrazine 480
Active Ingredient
linuron
+ atrazine
Formulation
480 g/L
480 g/L
Rate per hectare (active)
1.08 to 1.56 kg/ha
1.1 kg/ha
Rate per hectare (product)
2.25 to 3.25 L/ha
2.29 L/ha
Rate per acre (product)
0.9 to 1.3 L/ac
0.92 L/ac

Precautions

  • Apply PRE.
  • Use this tank-mix only on clay or clay loam soil to avoid injury. This tank-mix controls annual weeds including triazine resistant redroot pigweed and lamb's-quarters and is a method of reducing atrazine residues. Annual grasses will be the first weeds to escape.

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Primextra II Magnum + Banvel II or Oracle
Trade Name Primextra II Magnum + Banvel II or Oracle
Active Ingredient
s-metolachlor/benoxacor/atrazine
+ dicamba
Formulation
720 g/L (1:0.8)
480 g/L
Rate per hectare (active)
2.16 to 2.88 kg/ha
0.6 kg/ha
Rate per hectare (product)
3 to 4 L/ha
1.25 L/ha
Rate per acre (product)
1.2 to 1.6 L/ac
0.5 L/ac

Precautions

  • Apply PRE.
  • High rates should be used on heavy grass infestations and for fall panicum. Fall panicum may not be controlled all season. Banvel controls velvetleaf, and triazine (atrazine, cyanazine or simazine) resistant broadleaf weeds.
  • See precautions for Banvel II or Oracle alone.
  • Do NOT apply to coarse (sand) textured soils with less than 2% organic matter.
  • Do NOT use on seed corn or sweet corn.

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Primextra II Magnum + Callisto
Trade Name Primextra II Magnum + Callisto
Active Ingredient
s-metolachlor/benoxacor/atrazine
+ dicamba
Formulation
720 g/L (1:0.8)
480 g/L
Rate per hectare (active)
2.16 to 2.88 kg/ha
0.140 kg/ha
Rate per hectare (product)
3 to 4 L/ha
0.3 L/ha
Rate per acre (product)
1.2 to 1.6 L/ac
0.12 L/ac

Precautions

  • Apply PRE to field, seed and sweet corn.
  • Use high rates for heavy grass infestations.
  • Do NOT apply to corn treated with an organophosphorous insecticide

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Primextra II Magnum + Lorox L
Trade Name Primextra II Magnum + Lorox L
Active Ingredient
s-metolachlor/ benoxacor/atrazine
+ linuron
Formulation
915 g/L
480 g/L
Rate per hectare (active)
2.16 to 2.88 kg/ha
0.37 to 0.75 kg/ha
Rate per hectare (product)
3 to 4 L/ha
0.77 to 1.56 L/ha
Rate per acre (product)
1.2 to 1.6 L/ac
0.31 to 0.63 L/ac

Precautions

  • Apply PRE.
  • This tank-mix can be used on light textured soils with OM greater than 1.0%.
  • Linuron controls triazine resistant lamb's-quarters and redroot pigweed. Fall panicum or velvetleaf may not be controlled for the full season.
  • Do NOT use on seed corn or sweet corn.

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Prowl 400
Trade Name
Active Ingredient pendimethalin
Formulation 400 g/L
Rate per hectare (active) 1.68 kg/ha
Rate per hectare (product) 4.2 L/ha
Rate per acre (product) 1.68 L/ac

Precautions

  • Apply PRE.
  • Prowl alone will not control emerged weeds. Tank-mixing or use of a sequential herbicide program to achieve broad spectrum control is recommended. Plant corn at least 4 cm deep and ensure good seed coverage. Prowl may be applied in water or liquid fertilizer (rate of 200 L liquid fertilizer/ha (80 L liquid fertilizer/ac)). Conduct a liquid fertilizer compatibility test with any of the registered Prowl tank-mix combinations. If there is no rain within 7 days, rotary hoeing or shallow cultivation is required.
  • Do NOT use on seed corn or sweet corn.

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Prowl 400
Trade Name Prowl 400 + atrazine
Active Ingredient
pendimethalin
+ atrazine
Formulation
400 g/L
480 g/L
Rate per hectare (active)
1.68 kg/ha
1.53 kg/ha
Rate per hectare (product)
4.2 L/ha
3.19 L/ha
Rate per acre (product)
1.68 L/ac
1.28 L/ac

Precautions

  • Apply PRE.
  • See precautions for Prowl alone.
  • Do NOT use on seed corn or sweet corn.

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Prowl 400 + Banvel II or Oracle
Trade Name Prowl 400 + Banvel II or Oracle
Active Ingredient
pendimethalin
+ dicamba
Formulation
400 g/L
480 g/L
Rate per hectare (active)
1.68 kg/ha
0.6 kg/ha
Rate per hectare (product)
4.2 L/ha
1.25 L/ha
Rate per acre (product)
1.68 L/ac
0.5 L/ac

Precautions

  • Apply PRE.
  • See precautions for Prowl alone and Banvel II or Oracle alone.
  • Do NOT use on seed corn or sweet corn.

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Prowl 400 + Marksman
Trade Name Prowl 400 + Marksman
Active Ingredient
pendimethalin
+ dicamba/atrazine
Formulation
400 g/L
401 g/L (1:2)
Rate per hectare (active)
1.68 kg/ha
1.48 to 1.8 kg/ha
Rate per hectare (product)
4.2 L/ha
3.7 to 4.5 L/ha
Rate per acre (product)
1.68 L/ac
1.5 to 1.8 L/ac

Precautions

  • Apply PRE.
  • See precautions for Prowl alone and Banvel II or Oracle alone.
  • Do NOT use on seed corn or sweet corn.

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Princep Nine-T, or Simadex, or Simazine 480
Trade Name Princep Nine-T or Simadex or Simazine 480
Active Ingredient
simazine
or simazine
or simazine
Formulation
90 WG
500 g/L
480 g/L
Rate per hectare (active)
1.35 to 2.25 kg/ha
1.6 to 4 kg/ha
1.6 to 4 kg/ha
Rate per hectare (product)
1.5 to 2.5 kg/ha
3.2 to 8 L/ha
3.4 to 8.3 L/ha
Rate per acre (product)
0.6 to 1 kg/ac
1.28 to 3.2 L/ac
1.36 to 3.32 L/ac

Precautions

  • Apply PRE.
  • These products are listed separately because of their widely differing rate ranges. In both cases the low rates should be used on sandy soils while the higher rates may be used on loams and clays.
  • Full season annual weed control can be expected except for crabgrass or fall panicum where infestations have built up.
  • Caution is advised that when considering rates beyond 2.0 kg/ha (0.8 kg/ac) as soil residues may be high.

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Related Links

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