In This Section

Topics

Herbicide Recommendations for Canola (Winter and Spring Planted): Postemergence Grass Herbicides

Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 20 May 2008

Pub 75: Guide to Weed Control > Other Field Crops > Herbicide Recommendations for Canola (Spring Planted): Postemergence Grass Herbicides


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

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Assure II + Sure-Mix
  2. Excel Super
  3. Poast Ultra + Merge for annual grasses
  4. Poast Ultra + Merge for quackgrass
  5. Select + Amigo
  6. Venture L for grasses
  7. Venture L for volunteer cereals
  8. Canola Herbicide Ratings Tables (Table 12-1) (PDF 93 kb)
  9. Other Canola Weed Control Recommendations
  10. Related Links
Assure II + Sure-Mix
Trade Name Assure II + Sure-Mix
Active Ingredient
quizalofop-o-ethyl
+ oil concentrate
Formulation
96 g/L
 
Rate per hectare (active)
0.036 to 0.072 kg/ha
0.5% v/v
Rate per hectare (product)
0.375 to 0.75 L/ha
5 L/1000 L
Rate per acre (product)
0.15 to 0.3 L/ac
5 L/1000 L

Precautions

  • Apply to annual grasses and volunteer cereals in the 2-leaf to tillering stage and to quackgrass in the 2-6 leaf stage of growth.
  • Canola is tolerant at all growth stages.
  • Do NOT apply to canola within 64 days of harvest.

| Top of Page |

Excel Super
Trade Name
Active Ingredient fenoxaprop-p-ethyl
Formulation 80.5 g/L
Rate per hectare (active) 0.054 kg/ha
Rate per hectare (product) 0.67 L/ha
Rate per acre (product) 0.27 L/ac

Precautions

  • Apply to annual grasses in the 1-6 leaf stage of growth.
  • Canola is tolerant at all growth stages.
  • This treatment will not control volunteer winter wheat.

| Top of Page |

Poast Ultra + Merge for annual grasses
Trade Name
Active Ingredient
sethoxydim
+ surfactant/solvent
Formulation
450 g/L
 
Rate per hectare (active)
0.15 to 0.2 kg/ha
1 to 2 L/ha
Rate per hectare (product)
0.32 to 0.47 L/ha
1 to 2 L/ha
Rate per acre (product)
0.13 to 0.19 L/ac
0.4 to 0.8 L/ac

Precautions

  • Apply at 1-6 leaf stages of annual grasses
  • Canola is tolerant at all growth stages.

| Top of Page |

Poast Ultra + Merge for quackgrass
Trade Name
Active Ingredient
sethoxydim
+ surfactant/solvent
Formulation
450 g/L
 
Rate per hectare (active)
0.5 kg/ha
1 to 2 L/ha
Rate per hectare (product)
1.1 L/ha
1 to 2 L/ha
Rate per acre (product)
0.45 L/ac
0.4 to 0.8 L/ac

Precautions

  • Thorough preplant tillage will provide more uniform quackgrass emergence.
  • Apply to quackgrass in the 1-3 leaf stage of growth.

| Top of Page |

Select + Amigo
Trade Name Select + Amigo
Active Ingredient
clethodim
+ surfactant
Formulation
240 g/L
 
Rate per hectare (active)
0.03 to 0.045 kg/ha
0.5% v/v
Rate per hectare (product)
0.13 to 0.19 L/ha
5 L/1000 L
Rate per acre (product)
0.05 to 0.08 L/ac
5 L/1000 L

Precautions

  • Canola is tolerant at all growth stages.
  • Apply to annual grasses and volunteer cereals in the 2-6 leaf stage of growth.
  • Suppression of quackgrass when applied at the higher dose.

| Top of Page |

Venture L for quackgrass
Trade Name
Active Ingredient fluazifop-p-butyl
Formulation 125 g/L
Rate per hectare (active) 0.125 to 0.175 kg/ha
Rate per hectare (product) 1.0 to 1.4 L/ha
Rate per acre (product) 0.4 to 0.57 L/ac

Precautions

  • Apply to annual grasses in the 2-5 leaf stage of growth and 3-5 leaf stage of quackgrass.
  • Use the 1.4 L/ha (0.57 L/ac) rate for a mixed stand of annual grasses and quackgrass.
  • Do NOT apply Venture to canola later than the 5-leaf stage of crop growth.

| Top of Page |

Venture L for volunteer cereals
Trade Name Venture L
Active Ingredient fluazifop-p-butyl
Formulation 125 g/L
Rate per hectare (active) 0.100 kg/ha
Rate per hectare (product) 0.8 L/ha
Rate per acre (product) 0.32 L/ac

Precautions

  • For the control of volunteer cereals.
  • Apply at the 2-5 leaf stage of volunteer cereals.

| Top of Page |

Related Links

 

| Top of Page |

For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca