Herbicide Recommendations for Corn: Glyphosate Tolerant ("Roundup Ready") Corn - "One-Pass" Postemergence Tank-mixes with Residual Control for Use in Glyphosate Tolerant Corn Only
Excerpt from 2010-11 Chapter 9, Publication 75, Guide to Weed Control, Order this publication
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Table
of Contents| Trade Name | ||
|---|---|---|
| Active Ingredient |
rimsulfuron
|
+ glyphosate
|
| Formulation |
25 DF
|
540 g/L
|
| Rate per hectare (active) |
12.5 g/ha
|
0.9 g/ha
|
| Rate per hectare (product) |
50 g/ha
|
1.67 L/ha
|
| Rate per acre (product) |
20 g/ac
|
0.67 L/ac
|
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
-
Apply spike to the 6-leaf stage corn.
-
Use on corn with corn heat units (CHU) greater than 2500.
-
Water Volume: 140-190 L/ha
- Provides residual control of fall panicum, green foxtail, lamb's-quarters and pigweed spp.
| Trade Name | glyphosate | + Atrazine 480 |
|---|---|---|
| Active Ingredient |
glyphosate
|
+ atrazine
|
| Formulation |
360 g/L
|
480 g/L
|
| Rate per hectare (active) |
0.9 kg/ha
|
0.75 to 1.0 kg/ha
|
| Rate per hectare (product) |
See Table
9-7
|
1.56 to 2.1 L/ha
|
| Rate per acre (product) |
See Table
9-7
|
0.63 to 0.85 L/ac
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
- Apply up to and including the 5-leaf stage of corn.
- Atrazine will provide the residual control of broadleaf weeds.
- Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners For Use on Glyphosate Tolerant "Roundup Ready" Corn for a list of glyphosate products that can be tank-mixed with atrazine.
| Trade Name |
+ Callisto
|
+ non-ionic surfactant
|
||
|---|---|---|---|---|
| Active Ingredient |
glyphosate
|
+ mesotrione
|
+ atrazine
|
+ non-ionic surfactant
|
| Formulation |
360 g/L
|
480 g/L
|
480 g/L
|
|
| Rate per hectare (active) |
0.9 kg/ha
|
0.1 kg/ha
|
0.28 kg/ha
|
0.2 %v/v
|
| Rate per hectare (product) |
See Table
9-7
|
0.21 L/ha
|
0.58 L/ha
|
2 L/1,000 L
|
| Rate per acre (product) |
See Table
9-7
|
0.085 L/ac
|
0.235 L/ac
|
2 L/1,000 L
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
- Apply up to and including the 8-leaf stage of corn.
- Callisto and Atrazine will provide residual broadleaf weed control.
- Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners For Use on Glyphosate Tolerant "Roundup Ready" corn, for a complete list of glyphosate products that can be tank-mixed with Callisto plus Aatrex Liquid.
| Trade Name | + Impact |
+ dimethenamid
|
+ Atrazine
|
|
|---|---|---|---|---|
| Active Ingredient |
glyphosate*
|
topramezone
|
+ dimethenamid
|
+ atrazine*
|
| Formulation |
360 g/L
|
336 g/L
|
401 g/L
|
|
| Rate per hectare (active) |
0.9 kg/ha
|
0.0125 kg/ha
|
1.0 kg/ha
|
0.5 kg/ha
|
| Rate per hectare (product) |
See Table
9-7
|
37 mL/ha
|
1.04 L/ha
|
|
| Rate per acre (product) |
See Table
9-7
|
15 mL/ac
|
0.42 L/ac
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
- Apply up to and including the 7-leaf stage of corn.
- Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners For Use on Glyphosate Tolerant "Roundup Ready" Corn, for a complete list of glyphosate products that can be tank-mixed with Impact plus atrazine.
| Trade Name |
+
Marksman
|
or Propero
|
|
|---|---|---|---|
| Active Ingredient |
glyphosate
|
+ dicamba/atrazine
|
or dicamba/atrazine
|
| Formulation |
360 g/L
|
393 g/L
|
393 g/L
|
| Rate per hectare (active) |
0.9 kg/ha
|
1 - 1.5 kg/ha
|
1 - 1.5 kg/ha
|
| Rate per hectare (product) |
See Table
9-7
|
2.5 - 3.7 L/ha
|
2.5 - 3.7 L/ha
|
| Rate per acre (product) |
See Table
9-7
|
1 - 1.5 L/ac
|
1 - 1.5 L/ac
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as "Roundup Ready" Corn.
- Apply up to and including the 5-leaf stage of corn.
- Marksman will provide residual control of broadleaf weeds.
- See precautions for Banvel II or Oracle applied Post.
- Refer to Table 9-7, Glyphosate Product Rates andTank-Mix Partners For Use on Glyphosate Tolerant "Roundup Ready" Corn, for a list of glyphosate products that can be tank-mixed with dicamba/atrazine.
| Trade Name | ||
|---|---|---|
| Active Ingredient |
glyphosate
|
+ s-metolachlor/benoxacor/atrazine
|
| Formulation |
360 g/L
|
720 g/L (1:0.8)
|
| Rate per hectare (active) |
0.9 kg/ha
|
1.8 kg/ha
|
| Rate per hectare (product) |
See Table
9-7
|
2.5 L/ha
|
| Rate per acre (product) |
See Table
9-7
|
1.0 L/ac
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
- Apply up to and including the 6-leaf stage of corn.
- Primextra II Magnum will provide residual grass and broadleaf weed control.
- For tank-mixtures of Primextra II Magnum plus any of the glyphosate products, to ensure optimum compatibility: Add Primextra II Magnum to the tank first, then add Agral 90, Agsurf or Companion at 2.5 L/1,000 L. continue agitation and then add glyphosate.
- Refer to Table 9-7, Glyphosate Product Rates andTank-Mix Partners For Use on Glyphosate Tolerant "Roundup Ready" Corn, for a complete list of glyphosate products that can be tank-mixed with Primextra II Magnum..
| Trade Name |
+ non-ionic surfactant
|
||
|---|---|---|---|
| Active Ingredient |
glyphosate/metolachlor/mesotrione
|
+ atrazine
|
+ non-ionic surfactant
|
| Formulation |
525 g/L
|
480 g/L
|
|
| Rate per hectare (active) |
2,205 g/ha
|
0.28 kg/ha
|
0.2% v/v
|
| Rate per hectare (product) |
4.2 L/ha
|
0.58 L/ha
|
2 L/1,000 L
|
| Rate per acre (product) |
1.7 L/ac
|
0.235 L/ac
|
2 L/1,000 L
|
* Numberous products exist. Refer to Table 9-7, Glyphosate Product Rates and Tank-Mix Partners for Use on Glyphosaate Tolerant "Roundup Ready" Corn.
Precautions
- Use ONLY with pedigreed (certified) corn seed designated as glyphosate tolerant or "Roundup Ready" Corn.
- Apply up to and including the 6-leaf stage of corn.
- The addition of atrazine improves control of wild buckwheat, cocklebur, lady's-thumb, common and giant ragweed.
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| Author: | OMAFRA Staff |
|---|---|
| Creation Date: | 25 November 2002 |
| Last Reviewed: | 30 January, 2010 |