Canola - Winter and Spring Planted: Postemergence Grass and Broadleaf Herbicides (for use with herbicides tolerant varieties only)

Pub 75: Guide to Weed Control > Other Field Crops > Canola - Winter and Spring Planted: Postemergence Grass and Broadleaf Herbicides (for use with herbicides tolerant varieties only)

Excerpt from 2010-2011 Publication 75, Guide to Weed Control, Order this publication

**Glyphosate**
Trade Name	glyphosate	or glyphosate	or glyphosate	or glyphosate	or glyphosate
Active Ingredient	glyphosate	or glyphosate	or glyphosate	or glyphosate	or glyphosate
Formulation	360 g/L	450 g/L	480 g/L	500 g/L	540 g/L
Rate per hectare (active)	0.297 to 0.45 kg/ha	0.297 to 0.45 kg/ha	0.297 to 0.45 kg/ha	0.297 to 0.45 kg/ha	0.297 to 0.45 kg/ha
Rate per hectare (product)	0.825 - 1.875 L/ha	0.67 - 1.5 L/ha	0.6 - 1.4 L/ha	0.6 - 1.35 L/ha	0.24 - 0.54 L/ac
Rate per acre (product)	0.33 - 0.75 L/ac	0.27 - 0.6 L/ac	0.24 - 0.56 L/ac	0.24 - 0.54 L/ac	0.22 - 0.51 L/ac

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

For use only with pedigreed (certified) canola seed designated as "Roundup Ready" Canola.
Apply up to the 6 leaf stage of the canola. A second application may be made for later flushes emerging after the initial application and for improved results on perennial weeds.

The higher rate should be used when weeds are larger, when weed pressure is high and for perennial weeds.

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

Liberty 200SN can be applied from the cotyledon to the early bolting stage of canola.
For use only with canola seed designated as "Liberty Link" Canola.
Ammonium sulphate can be applied at 6 L/ha (2.4 L/ac) (liquid) or 3.3 kg/ha (1.3 kg/ac) (dry) for improved control of specific weeds.
Do NOT add oil or any other surfactants.

**Pursuit + non-ionic surfactant + liquid fertilizer**
Trade Name	Pursuit	+ non-ionic surfactant	+ 10-34-0, 28-0-0, or 32-0-0
Active Ingredient	imazethapyr	+ non-ionic surfactant	+ liquid fertilzer
Formulation	240 g/L
Rate per hectare (active)	0.075 kg/ha	0.25% v/v	2 L/ha
Rate per hectare (product)	0.312 L/ha	2.5 L/1,000 L	2 L/ha
Rate per acre (product)	0.125 L/ac	2.5 L/1,000 L	0.8 L/ac

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

For use on imazethapyr tolerant canola only.
Apply early postemergence when the crop has at least one fully expanded leaf and before the weeds reach the 2 true leaf stage.
PURSUIT will provide residual weed control from soil activity.
Some rotational cropping restrictions apply, see Table 4-4. Herbicide Crop Rotation and Soil pH Restrictions, page 61.

**Glyphosate + Lontrel 360**
Trade Name	glyphosate	or glyphosate	or glyphosate	or glyphosate	or glyphosate	+ Lontrel 360
Active Ingredient	glyphosate	or glyphosate	or glyphosate	or glyphosate	or glyphosate	+ clopyralid
Formulation	360 g/L	450 g/L	480 g/L	500 g/L	540 g/L	360 g/L
Rate per hectare (active)	0.45 kg/ha	0.45 kg/ha	0.45 kg/ha	0.45 kg/ha	0.45 kg/ha	0.10 kg/ha
Rate per hectare (product)	1.25 L/ha	1 L/ha	0.94 L/ha	0.9 L/ha	0.83 L/ha	0.28 L/ha
Rate per acre (product)	0.5 L/ac	0.4 L/ac	0.38 L/ac	0.36 L/ac	0.33 L/ac	0.11 L/ac

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

For use only with certified canola seed designated as "Roundup Ready" Canola.
Provides season long top growth control of Canada thistle and control of wild buckwheat.
Apply when canola is in the 2-6 leaf stage.
Apply in 100 L/ha (40 L/ac) of water.
For more information on weed control and rates, refer to the LONTREL and appropriate glyphosate product labels.

Crops