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


Pub 75: Guide to Weed Control > Corn > Herbicide Recommendations for Corn: Postemergence Tank-Mixes (For Control of Grass and Broadleaf Weeds)

Excerpt from 2010-11 Chapter 9, Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Accent + Banvel II + non-ionic surfactant
  2. Accent + Callisto + Aatrex Liquid + non-ionic surfactant
  3. Accent Total1, Accent + Distinct + non-ionic surfactant + liquid urea ammonium nitrate (UAN)
  4. Accent + Marksman + non-ionic surfactant
  5. Accent + Pardner or Koril, Brotex + non-ionic surfactant
  6. Accent One-Pass1, Accent+ Peakplus1 (Peak + Banvel II) + non-ionic surfactant
  7. Accent + Shotgun + non-ionic surfactant
  8. Impact + Frontier Max + atrazine + Merge + liquid urea ammonium nitrate (UAN)
  9. Option 1.2.3. Option 2.25 OD + Define DF + atrazine + liquid urea ammonium nitrate (UAN)
  10. Option 2.25 OD + Aatrex 480 + liquid urea ammonium nitrate
  11. Option 2.25 OD + Banvel II + liquid urea ammonium nitrate
  12. Option 2.25 OD + Callisto + Aatrex Liquid + liquid urea ammonium nitrate
  13. Option 2.25 OD + Distinct + liquid urea ammonium nitrate
  14. Option 2.25 OD + Marksman + liquid urea ammonium nitrate
  15. Option 2.25 OD + Pardner or Koril + Aatrex 480 + liquid urea ammonium nitrate
  16. Option 2.25 OD + Peakplus1 (Peak + Banvell II) + liquid urea ammonium nitrate
  17. Prowl 400 + Accent + Banvel II or Oracle + non-ionic surfactant
  18. Prowl 400 + Shotgun
  19. Ultim + Banvel II or Oracle + non-ionic surfactant
  20. Ultim + Callisto + Aatrex Liquid + non-ionic surfactant
  21. Ultim Total1, (Ultim + Distinct) + non-ionic surfactant + liquid urea ammonium nitrate
  22. Ultim + Marksman + non-ionic surfactant
  23. Ultim + Pardner or Koril, Brtotex + non-ionic surfactant
  24. Ultim + Pardner or Koril, Brtotex + Atrazine 480 + non-ionic surfactant
  25. Ultim + PeakPlus1 (Peak + Banvel II) + non-ionic surfactant
  26. Ultim + Shotgun + non-ionic surfactant
  27. Corn Herbicide Weed Control Ratings (Table 9-1) (PDF file - 84 kb)
  28. Corn Leaf Stages
  29. Why is Early Season Weed control so Important in Corn?
  30. Related Links
Accent + Banvel II + non-ionic surfactant
Trade Name Accent + Banvel II + non-ionic surfactant
Active Ingredient
nicosulfuron
+ dicamba
+ non-ionic surfactant
Formulation
75 DF
480 g/L
 
Rate per hectare (active)
25 g/ha
0.288 kg/ha
0.2% v/v
Rate per hectare (product)
33 g/ha
0.6 L/ha
2 L/1000 L
Rate per acre (product)
13 g/ac
0.24 L/ac
2 L/1000 L

Precautions

  • See precautions for Accent and Banvel II or Oracle.
  • Do NOT apply to corn beyond the 6-leaf stage.
Accent + Callisto + Aatrex Liquid + non-ionic surfactant
Trade Name Accent + Callisto + Aatrex Liquid + non-ionic surfactant
Active Ingredient
nicosulfuron
+ mesotrione
+ atrazine
+ non-ionic surfactant
Formulation
75 DF
480 g/L
480 g/L
 
Rate per hectare (active)
25 g/ha
0.1 kg/ha
0.28 kg/ha
0.2% v/v
Rate per hectare (product)
33 g/ha
0.21 kg/ha
0.58 L/ha
2 L/1000 L
Rate per acre (product)
13 g/ac
0.085 kg/ac
0.235 L/ac
2 L/1000 L

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply from the 3 to 8 leaf stage of corn.
  • Apply in 100 - 200 L/ha of water..
  • See precautions for Accent and Callisto + atrazine.
Accent Total1, Accent + Distinct + non-ionic surfactant + liquid urea ammonium nitrate (UAN)
Trade Name Accent Total1, Accent + Distinct + non-ionic surfactant + liquid urea ammonium nitrate
Active Ingredient
nicosulfuron
+ diflufenzopyr/ dicamba
+ non-ionic surfactant
+ liquid urea ammonium nitrate
Formulation
75 DF
70 WG
 
 
Rate per hectare (active)
25 g/ha
0.2 kg/ha
0.2% v/v
5 L/ha
Rate per hectare (product)
33 g/ha
0.285 kg/ha
2.5 L/1000 L
5 L/ha
Rate per acre (product)
13 g/ac
0.155 kg/ac
2.5 L/1000 L
2 L/ac

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply to active growth stage of seedling broadleaf weeds (less than 5 cm tall).
  • Apply to annual grasses in the 1-6 leaf stage and to quackgrass in the 3-6 leaf stage (10 to 20 cm).
  • Apply when corn is in the 2-8 leaf stage.
  • Accent Total is co-pack of Accent and Distinct
  • See precautions for Accent, and Distinct.
Accent + Marksman + non-ionic surfactant
Trade Name Accent + Marksman + non-ionic surfactant
Active Ingredient
nicosulfuron plus
+ dicamba/atrazine
+ non-ionic surfactant
Formulation
75 DF
393 g/L
 
Rate per hectare (active)
25 g/ha
1 kg/ha
0.2% v/v
Rate per hectare (product)
33 g/ha
2.5 L/ha
2 L/1000 L
Rate per acre (product)
13 g/ac
1 L/ac
2 L/1000 L

Precautions

  • See precautions for Accent and Marksman.
  • Do NOT apply to corn beyond the 6-leaf stage.
Accent + Pardner or Koril, Brotex + non-ionic surfactant
Trade Name Accent + Pardner or Koril, Brotex + non-ionic surfactant
Active Ingredient
nicosulfuron
+ bromoxynil
or bromoxynil
+ non-ionic surfactant
Formulation
75 DF
280 g/L
235 g/L
  
Rate per hectare (active)
25 g/ha
0.28 kg/ha
0.28 kg/ha
0.2% v/v
Rate per hectare (product)
33 g/ha
1 L/ha
1.2 L/ha
2 L/1000 L
Rate per acre (product)
13 g/ac
0.4 L/ac
0.5 L/ac
2 L/1000 L

Precautions

  • Use only when the corn is between the 4 and 8-leaf stage.
  • See precautions for Accent, and Pardner.
Accent One-Pass1, Accent + Peakplus1 (Peak+ Banvel II) + non-ionic surfactant
Trade Name Accent + Peakplus1
(Peak + Banvel II)		 + non-ionic surfactant
Active Ingredient
nicosulfuron
+ prosulfuron + dicamba
+ non-ionic surfactant
Formulation
75 DF
75 WG + 480 g/L
 
Rate per hectare (active)
25 g/ha
10 g/ha + 0.14 kg/ha
0.2% v/v
Rate per hectare (product)
33 g/ha
13.3 g/ha + 0.3 L/ha
2 L/1000 L
Rate per acre (product)
13.3 g/ac
5.3 g/ac + 0.12 L/ac
2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply when the corn is in the 2-7 leaf stage.
  • Do NOT apply to corn treated with organophosphorus insecticides.
  • Accent 1-Pass1 is a co-pack of Accent and Peakplus1.
  • To control eastern black nightshade at the cotyledon to 6 leaf stage, add atrazine (480 g/L) at a rate of 1.04 L/ha (0.42 L/ac).
Accent + Shotgun + non-ionic surfactant
Trade Name Accent + Shotgun + non-ionic surfactant
Active Ingredient
nicosulfuron
+ atrazine/2,4-D
+ non-ionic surfactant
Formulation
75 DF
390 g/L (2.3:1)
 
Rate per hectare (active)
25 g/ha
0.94 to 1.4 kg/ha
0.2% v/v 
Rate per hectare (product)
33 g/ha
2.4 to 3.6 L/ha
2 L/1000 L
Rate per acre (product)
13 g/ac
0.96 to 1.44 L/ac
2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply as an overall spray from 1-4 leaf stage of corn or 1-6 leaf stage of grasses.
  • See precautions for Accent, and Shotgun,
Impact + Frontier Max + atrazine + Merge + liquid urea ammonium nitrate (UAN)
Trade Name Impact + Frontier Max + atrazine + Merge + liquid urea ammonium nitrate
Active Ingredient
topramezone
+ dimethenamid
+ atrazine
  
Formulation
336 g/L
720 g/L
480 g/L*
    
Rate per hectare (active)
0.0125 kg/ha
1.0 kg/ha
0.5 kg/ha
    
Rate per hectare (product)
37 mL/ha
756 mL/ha
1.04 L/ha
5L/1000 L
12.5 L/1000 L
Rate per acre (product)
15 mL/ac
302 mL/ac
0.42 L/ac
5 L/1000 L
12.5 L/1000 L

*See Table 4-1, Herbicides Used in Ontario, for formulations available. See label for specific uses and rates.

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply POST up to 4 leaf grassy weeds and up to 8 leaf broadleaf weeds.
  • Apply between the spike and 3 leaf stage of corn
  • The addition of FRONTIER MAX provides residual grassy weed control.
  • If using FRONTIER (900 g/L) apply at a rate of 0.45 L/ac

    Option 1.2.3. Option 2.25 OD + Define DF + atrazine + liquid urea ammonium nitrate (UAN)
    Trade Name
    +plus liquid urea ammonium nitrate (UAN)
    Active Ingredient
    foramsulfuron
    flufenacet
    + atrazine
    + UAN
    Formulation
    22.5 g/L
    60%
    480 g/L*
      
    Rate per hectare (active)
    15 g/ha
    450 g/ha
    840 g/ha
    2.5 L/ha
    Rate per hectare (product)
    0.67 L/ha
    750 g/ha
    1.75 L/ha
    2.5 L/ha
    Rate per acre (product)
    0.27 L/ac
    304 g/ac
    0.71 L/ac
    1.0 L/ac

*See Table 4-1, Herbicides Used in Ontario, for formulations available. See label for specific uses and rates.

Precautions

  • Apply at the 1- to 3-leaf stage of corn.
  • Atrazine and UAN (28%) are required tank-mix partners and are to be purchased separately.
  • Will not provide control of un-emerged triazine resistant lamb's-quarters.
Option 2.25 OD + Aatrex 480 + liquid urea ammonium nitrate (UAN)
Trade Name Option 2.25 OD + Aatrex 480 + liquid urea ammonium nitrate
Active Ingredient
foramsulfuron
+ atrazine
+ liquid urea ammonium nitrate
Formulation
22.5 g/L
480 g/L
28%
Rate per hectare (active)
35 g/ha
0.84 to 1.12 kg/ha
2.5 L/ha
Rate per hectare (product)
1.56 L/ha
1.75 to 2.33 L/ha
2.5 L/ha
Rate per acre (product)
0.63 L/ac
0.7 to 0.93 L/ac
1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 8-leaf stage of corn.
      Option 2.25 OD + Banvel II + liquid urea ammonium nitrate UAN)
      Trade Name Option 2.25 OD + Banvel II + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + dicamba
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      480 g/L
      28%
      Rate per hectare (active)
      35 g/ha
      0.144 kg/ha
      2.5 L/ac
      Rate per hectare (product)
      1.56 L/ha
      0.3 L/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      0.12 L/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 8-leaf stage of corn.
      Option 2.25 OD + Callisto + Aatrex Liquid + liquid urea ammonium nitrate (UAN)
      Trade Name Option 2.25 OD + Callisto + Aatrex Liquid + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + mesotrione
      + atrazine
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      480 g/L
      480 g/L
      28%
      Rate per hectare (active)
      35 g/ha
      0.1 kg/ha
      0.28 kg/ha
      2.5 L/ha 
      Rate per hectare (product)
      1.56 L/ha
      0.21 kg/ha
      0.58 L/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      0.085 kg/ac
      0.235 L/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 8-leaf stage of corn.
  • Apply in 175 L/ha (70 L/ac) of water.
      Option 2.25 OD + Distinct + liquid urea ammonium nitrate (UAN)
      Trade Name Option 2.25 OD + Distinct + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + diflufenzopyr/ dicamba
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      70 WG
      28%
      Rate per hectare (active)
      35 g/ha
      0.2 kg/ha
      2.5 L/ha
      Rate per hectare (product)
      1.56 L/ha
      0.285 kg/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      0.115 kg/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 6-leaf stage of corn..
      Option 2.25 OD + Marksman + liquid urea ammonium nitrate (NAN)
      Trade Name Option 2.25 OD + Marksman + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + dicamba/atrazine
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      393 g/L
      28%
      Rate per hectare (active)
      35 g/ha
      1 kg/ha
      2.5 L/ha
      Rate per hectare (product)
      1.56 L/ha
      2.5 L/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      1 L/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 5-leaf stage of corn.
      Option 2.25 OD + Pardner or Koril + Aatrex 480 + liquid urea ammonium nitrate (UAN)
      Trade Name Option 2.25 OD + Pardner or + Koril + Aatrex 480 + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + bromoxynil
      or + bromoxynil
      + atrazine
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      280 g/L
      235 g/L
      480 g/L
      28%
      Rate per hectare (active)
      35 g/ha
      0.14 kg/ha
      0.14 kg/ha
      0.5 kg/ha
      2.5 L/ha
      Rate per hectare (product)
      1.56 L/ha
      0.5 L/ha
      0.6 L/ha
      1.04 L/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      0.2 L/ac
      0.24 L/ac
      0.42 L/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 8-leaf stage of corn.
      Option 2.25 OD + Peakplus1 + liquid urea ammonium nitrate
      Trade Name Option 2.25 OD + Peakplus1
      (Peak + Banvel II)      		 + liquid urea ammonium nitrate
      Active Ingredient
      foramsulfuron
      + prosulfuron + dicamba
      + liquid urea ammonium nitrate
      Formulation
      22.5 g/L
      75 WG + 480 g/L
      28%
      Rate per hectare (active)
      35 g/ha
      10 g/ha + 0.14 kg/ha
      2.5 L/ha 
      Rate per hectare (product)
      1.56 L/ha
      13.3 g/ha + 0.3 L/ha
      2.5 L/ha
      Rate per acre (product)
      0.63 L/ac
      5.3 g/ac + 0.12 L/ac
      1 L/ac

Precautions

  • Do NOT use on seed or sweet corn.
  • Apply up to the 7-leaf stage of corn.

1 - Indicates product sold as co-pack.

      Prowl 400 + Accent + Banvel II or Oracle + non-ionic surfactant
      Trade Name Prowl 400 + Accent + Banvel II or Oracle + non-ionic surfactant
      Active Ingredient
      pendimethalin
      + nicosulfuron
      + dicamba
      + non-ionic surfactant
      Formulation
      400 g/L
      75 DF
      480 g/L
       
      Rate per hectare (active)
      1 kg/ha
      12.5 g/ha
      300 g/ha
      0.2% v/v
      Rate per hectare (product)
      2.5 L/ha
      16.7 g/ha
      0.625 L/ha
      2 L/1000 L
      Rate per acre (product)
      1 L/ac
      6.7 g/ac
      0.25 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply early postemergence from the spike to 3-leaf stage of corn.
  • See precautions for Prowl, Accent, and Banvel II or Oracle.
      Prowl 400 + Shotgun
      Trade Name Prowl 400 + Shotgun
      Active Ingredient
      pendimethalin
      + 2,4-d/atrazine
      Formulation
      400 g/L
      390 g/L
      Rate per hectare (active)
      1.68 kg/ha
      0.936 - 1.404 kg/ha
      Rate per hectare (product)
      4.2 L/ha
      2.4 - 3.59 L/ha
      Rate per acre (product)
      1.68 L/ac
      0.96 - 1.44 L/ac

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply at the spike to 3 leaf stage of corn.
  • Annual grasses should be no bigger than the 1-2 leaf stage.
  • Apply to medium and fine textured soils with more than 3% organic matter.
  • See precautions for Prowl alone POST, and Shotgun along POST.
      Ultim + Banvel II or Oracle + non-ionic surfactant
      Trade Name Ultim + Banvel II or Oracle + non-ionic surfactant
      Active Ingredient
      nicosulfuron/rimsulfuron
      + dicamba
      + non-ionic surfactant
      Formulation
      75 DF
      480 g/L
       
      Rate per hectare (active)
      25 g/ha
      0.288 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      0.6 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      0.24 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Refer to product label(s) for weeds controlled, timing of application, and use precautions. If grass and broadleaf weed growth stages Do NOT coincide, then a sequential application of Ultim and Banvel II or Oracle is required.
  • See precautions for Ultim alone, and Banvel II alone.
      Ultim + Callisto + Aatrex Liquid + non-ionic surfactant
      Trade Name Ultim + Callisto + Aatrex Liquid + non-ionic surfactant
      Active Ingredient
      nicosulfuron/ rimsulfuron
      + mesotrione
      + atrazine
      + non-ionic surfactant
      Formulation
      75 DF
      480 g/L
      480 g/L
       
      Rate per hectare (active)
      25 g/ha
      0.1 kg/ha
      0.28 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      0.21 L/ha
      0.58 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      0.085 L/ac
      0.235 L/ac
      2 L/1000 L

Precautions

  • Apply from the 3 to 6 leaf stage of corn.
  • Do NOT use on seed or sweet corn.
  • Apply in 100-200 L/ha of water.
  • See precautions for Ultim alone and Callisto plus Aatrex Liquid.
      Ultim Total1 (Ultim + Distinct) + non-ionic surfactant + liquid urea ammonium nitrate (UAN)
      Trade Name Ultim + Distinct + non-ionic surfactant + liquid urea ammonium nitrate
      Active Ingredient
      nicosulfuron/ rimsulfuron
      + diflufenzopyr/ dicamba
      + non-ionic surfactant
      + liquid urea ammonium nitrate
      Formulation
      75 DF
      70 WG
       
      28%
      Rate per hectare (active)
      25 g/ha
      0.2 kg/ha
      0.25% v/v
      12.5 L/1,000 L
      Rate per hectare (product)
      33 g/ha
      0.285 kg/ha
      2.5 L/1000 L
      12.5 L/1,000 L
      Rate per acre (product)
      13 g/ac
      0.115 kg/ac
      2.5 L/1000 L
      12.5 L/1,000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply to active growth stage of seedling broadleaf weeds (less than 5 cm tall).
  • Apply to annual grasses in the 1-6 leaf stage and to quackgrass in the 3-6 leaf stage
  • Ultim Total1 is available ONLY as a co-pack of Ultim + Distinct.
  • 1 bag of Ultim Total1 treats 10 acres.
  • See precautions for Ultim alone and Distinct alone.

1 - Indicates product sold as co-pack.

      Ultim + Marksman + non-ionic surfactant
      Trade Name Ultim + Marksman + non-ionic surfactant
      Active Ingredient
      nicosulfuron/rimsulfuron
      + dicamba/atrazine
      + non-ionic surfactant
      Formulation
      75 DF
      393 g/L
       
      Rate per hectare (active)
      25 g/ha
      1.003 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      2.5 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      1 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply up to the 5-leaf stage of corn.
  • Apply one water soluble bag/ha of Ultim . If grass and broadleaf weed growth stages do not coincide, then a sequential application of Ultim and Marksman is required.
  • See precautions for Ultim alone, and Marksman alone.
      Ultim + Pardner or Koril, Brotex + non-ionic surfactant
      Trade Name Ultim + Pardner or + Koril, Brotex + non-ionic surfactant
      Active Ingredient
      nicosulfuron/ rimsulfuron
      + bromoxynil
      or + bromoxynil
      + non-ionic surfactant
      Formulation
      75 DF (1:1)
      280 g/L
      235 g/L
       
      Rate per hectare (active)
      25 g/ha
      0.28 kg/ha
      0.28 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      1 L/ha
      1.2 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      0.4 L/ac
      0.5 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply from the 3-6 leaf stage of corn for optimum control.
  • One solupak of Ultim treats 1 ha (2.5 ac). Refer to product label(s) for weeds controlled, timing of application, and use precautions. If grass and broadleaf weed growth stages do not coincide, then a sequential application of Ultim and Pardner or Koril is required.
  • Do NOT apply Ultim to corn treated with organophosphorous insecticides.
      Ultim + Pardner or Koril, Brotex + Atrazine 480 + non-ionic surfactant
      Trade Name Ultim + Pardner or + Koril Brotex + Atrazine 480 + non-ionic surfactant
      Active Ingredient
      nicosulfuron/ rimsulfuron
      + bromoxynil
      or + bromoxynil
      + atrazine
      + non-ionic surfactant
      Formulation
      75 DF (1:1)
      280 g/L
      235 g/L
      480 g/L
       
      Rate per hectare (active)
      25 g/ha
      0.14 kg/ha
      0.14 kg/ha
      0.5 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      0.5 L/ha
      0.6 L/ha
      1.04 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      0.2 L/ac
      0.24 L/ac
      0.42 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply from the 3-6 leaf stage of field corn.
  • This treatment provides improved control of larger velvetleaf (up to 6-leaf stage) and common ragweed (up to 8-leaf stage). If grass and broadleaf weed growth stages do not coincide, then a sequential application of Ultim and Pardner or Koril plus atrazine is required.
  • Note: some hybrids have shown sensitivity to Ultim.
  • See precautions for Ultim alone, Pardner alone, and atrazine alone.
      Ultim + Peakplus1 (Peak + Banvel II) + non-ionic surfactant
      Trade Name Ultim + Peakplus1
      (Peak + Banvel II)      		 + non-ionic surfactant
      Active Ingredient
      nicosulfuron/ rimsulfuron
      + prosulfuron + dicamba
      + non-ionic surfactant
      Formulation
      75 DF
      75 WG + 480 g/L
       
      Rate per hectare (active)
      25 g/ha
      10 g/ha + 0.14 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33 g/ha
      13.3 g/ha + 0.3 L/ha
      2 L/1000 L
      Rate per acre (product)
      13 g/ac
      5.3 g/ac + 0.12 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply to corn between the 2-6 leaf stage.
  • See precautions for Ultim alone, and Peakplus alone.
  • Peakplus1 is a co-pack of Peak and Banvel II.
      Ultim + Shotgun + non-ionic surfactant
      Trade Name Ultim + Shotgun + non-ionic surfactant
      Active Ingredient
      nicosulfuron/rimsulfuron
      + atrazine/2,4-D
      + non-ionic surfactant
      Formulation
      75 DF
      390 g/L (2.3:1)
       
      Rate per hectare (active)
      25 g/ha
      0.94 to 1.4 kg/ha
      0.2% v/v
      Rate per hectare (product)
      33.7 g/ha
      2.4 to 3.6 L/ha
      2 L/1000 L
      Rate per acre (product)
      13.4 g/ac
      0.96 to 1.44 L/ac
      2 L/1000 L

Precautions

  • Do NOT use on seed corn or sweet corn.
  • Apply as an overall spray from 1-4 leaf stage of corn or 1-6 leaf stage of grasses.
  • See precautions for Ultim alone and Shotgun alone.

Related Links

 


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 30 January 2010