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Herbicide Recommendations for Mustard: Postemergent Grass Herbicides

Author: OMAFRA Staff
Creation Date: 25 October 2004
Last Reviewed: 20 May 2008

Pub 75: Guide to Weed Control > Other Field Crops > Herbicide Recommendations for Mustard: Postemergent 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. Poast Ultra + Assist or Merge
  2. Poast Ultra + Merge
  3. Mustard Herbicide Ratings Tables (Table 12-1) (PDF 93 kb)
  4. Other Mustard Weed Control Recommendations
  5. Related Links

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

Precautions

  • Treat the 1-6 leaf stage of annual grass.
  • For annual grasses and volunteer cereals.
  • Use the higher rate when volunteer cereals are present.
  • Use Merge for conditions or weeds requiring medium to high rates of Poast Ultra.
  • Mustard is tolerant at any stage of growth.
  • Apply using 110-200 L/ha of water (44-80 L/ac).
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Poast Ultra + Merge
Trade Name
Active Ingredient
sethoxydim
+ surfactant/solvent
Formulation
450 g/L
 
Rate per hectare (active)
0.5 kg/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

  • For quackgrass control. Thorough preplant tillage will ensure more uniform quackgrass emergence.
  • Apply using 100-200 L/ha of water (40-80 L/ac).

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Related Links

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