Table 9-1. Corn Herbicide Weed Control Ratings: Annual Broadleaf Weeds

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Table 9-1. Corn Herbicide Weed Control Ratings: Annual Broadleaf Weeds

Author:	OMAFRA Staff
Creation Date:	25 November 2002
Last Reviewed:	10 May 2008

Pub 75: Guide to Weed Control > Corn > Table 9-1. Corn Herbicide Weed Control Ratings: Annual Broadleaf Weeds

Excerpt from 2008 Chapter 9, Publication 75, Guide to Weed Control, Order this publication

Soil Applied Grass Herbicides
Soil Applied Broadleaf Herbicides
Soil Applied Grass and Broadleaf Herbicides
Soil Applied Tank-Mixes
Postemergence Grass Herbicides
Postemergence Broadleaf Herbicides
Postemergence Grass and Broadleaf Herbicides
Postemergence Grass and Broadleaf Herbicides (herbicide tolerant hybrids only)
Postemergent Tank-Mixes
Postemergent Tank-Mixes (herbicide tolerant hybrids only)
Directed Postemergence
Directed Postemergence (herbicide tolerant hybrids only)
Other recommendations in Table 9-1: Corn (Field and Sweet) Herbicide Weed Control Ratings
- Annual Grasses
- Perennial Weeds
- Table 9-1 (PDF file - 214kb)
Other Herbicide Recommendations for Corn
Corn Leaf Stages
Related Links

**Soil Applied Grass Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Dual II Magnum (E) (sd,sw,fd)*	2	2	2	?	2	7 More...
Eradicane (E) (sw,fd)	2	4	8*	?	7	8* More...
Frontier (E) (sd,sw,fd)	2	2	2	?	2	7 More...
Prowl (E) (fd)	?	?	?	?	6	9* More...

**Soil Applied Grass Herbicides (con't)**
Trade Name	Mustards	Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Dual II Magnum (E) (sd,sw,fd)*	2	8/9^c*	7/8*	4	3	3
Eradicane (E) (sw,fd)	2	8	7*	7	?	4
Frontier (E) (sd,sw,fd)	2	8/9^c*	7/8*	4	3	3
Prowl (E) (fd)	0	8	8*	2	?	6

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
^c - Use PRE timing for optimum control.
**Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn

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**Soil Applied Broadleaf Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Lorox (G)** (sw,sd)*	9*	5	?	?	9*	9* More...
atrazine** (E) (sd,sw,fd)	9*	7	9*	?	9*	9* More...
Banvel II, Oracle (G) (fd)	8*	7	8*	?	9*	9* More...
Callisto (E) (sd,sw,fd)	6	6	?	?	7	9* More...
Marksman (G) (fd)	9*	7	9*	?	9*	9* More...
Princep Nine-T, Simadex, Simazine 480 (E) (sd,sw,fd)	9*	7	9	?	9*	9* More...

**Soil Applied Broadleaf Herbicides (con't)**
Trade Name	Mustards	Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Lorox (G)** (sw,sd)*	9*	8	9*	8*	?	5*
atrazine** (E) (sd,sw,fd)	9	9	9*	9*	6	5
Banvel II, Oracle (G) (fd)	6*	9	9*	9*	7	8*
Callisto (E) (sd,sw,fd)	9*	9	9*	7*	6	9*
Marksman (G) (fd)	9*	9	9*	9*	7	8*
Princep Nine-T, Simadex, Simazine 480 (E) (sd,sw,fd)	9	9	9	8*	?	5

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
** - Various formulations available, see Table 1, Herbicides Used in Ontario.
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Soil Applied Grass and Broadleaf Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Battalion¹(G)* (fd)	9	?	8	?	8*	9* More...
Converge Pro¹(G)* (fd)	8*	6	?	8	9*	9* More...
Primextra II Magnum (E) (sd,sw,fd)	9*	7	9	?	9*	9* More...

**Soil Applied Grass and Broadleaf Herbicides (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Battalion¹(G)* (fd)	?	8*	9*	9*	7	8
Converge Pro¹(G)* (fd)	9*	9*	9*	9*	7	9*
Primextra II Magnum (E) (sd,sw,fd)	9*	9*	9*	9*	?	7

* - Indicates the weed is listed on the product label for control or suppresssion.
¹ - Indicates herbicides sold as a co-pack under this trade name.
**Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
***Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Soil Applied Tank-Mixes**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Dual II Magnum + Banvel II or Oracle (G) (fd)	8*	8	8*	?	9*	9* More...
Dual II Magnum + Callisto + atrazine** (E) (sd,sw,fd)	9*	8	9	?	9*	9* More...
Dual II Magnum + Converge Pro¹ (G) (fd)	?	?	9*	?	9*	9* More...
Dual II Magnum + Lorox + atrazine** (E) (sw)	9*	7	9	?	9*	9* More...
Dual II Magnum + Marksman (E) (fd)	9*	8	9*	?	9*	9* More...
Eradicane + atrazine** (E) (sw,fd)	9*	7	9*	?	9*	9* More...
Eradicane + Sencor (G) (fd)	7	7	8*	?	9*	9* More...
Frontier + atrazine** (E) (sw,fd)	9*	7	9*	?	9*	9* More...
Frontier + Banvel II, Oracle (G) (fd)	8*	8	8*	?	9*	9* More...
Frontier + Marksman (G) (fd)	9*	8	9*	?	9*	9* More...
Lorox + atrazine** (E) (fd)	9*	7	9*	?	9*	9* More...
Primextra II Magnum + Banvel II, Oracle (G) (fd)	9*	8	9*	?	9*	9* More...
Primextra II Magnum + Callisto + atrazine** (E) (sd,sw,fd)	9*	8	9	?	9*	9* More...
Primextra II Magnum + Lorox (E) (fd)	9*	7	9	?	9*	9* More...
Prowl + atrazine** (E) (fd)	9*	7	9*	?	9*	9* More...
Prowl + Banvel II, Oracle (E) (fd)	8*	8	8*	?	9*	9* More...
Prowl + Marksman (E) (fd)	9*	8	9*	?	9*	9* More...

**Soil Applied Tank-Mixes (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Dual II Magnum + Banvel II or Oracle (G) (fd)	6*	9	9*	9*	7	8*
Dual II Magnum + Callisto + atrazine** (E) (sd,sw,fd)	9*	9*	9*	9*	7	9*
Dual II Magnum + Converge Pro¹ (G) (fd)	9*	9*	9*	9*	?	9*
Dual II Magnum + Lorox + atrazine** (E) (sw)	9*	9*	9*	9*	?	7
Dual II Magnum + Marksman (E) (fd)	9*	9	9*	9*	?	8*
Eradicane + atrazine** (E) (sw,fd)	9	9	9*	9*	6	5
Eradicane + Sencor (G) (fd)	9*	8	9*	8*	?	8*
Frontier + atrazine** (E) (sw,fd)	9	9	9*	9*	6	5
Frontier + Banvel II, Oracle (G) (fd)	6*	9	9*	9*	7	8*
Frontier + Marksman (G) (fd)	9*	9	9*	9*	?	8*
Lorox + atrazine** (E) (fd)	9*	9	9*	9*	?	5*
Primextra II Magnum + Banvel II, Oracle (G) (fd)	9*	9	9*	9*	7	8*
Primextra II Magnum + Callisto + atrazine**(E)(sd,sw,fd)	9*	9*	9*	9*	7	9*
Primextra II Magnum + Lorox (E) (fd)	9*	9*	9*	9*	?	7
Prowl + atrazine** (E) (fd)	9	9	9*	9*	6	6
Prowl + Banvel II, Oracle (E) (fd)	6*	9	9*	9*	7	8*
Prowl + Marksman (E) (fd)	9*	9	9*	9*	7	8*

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
** - Various formulations available, see Table 1, Herbicides Used in Ontario.
^a - Use the high rate of herbicide for optimum control.
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Postemergence Grass Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Dual II Magnum (E)* (sd,sw,fd)	0	0	0	0	0	7 More...
Frontier (E) (fd)	0	0	0	0	0	0 More...
Accent (E³) (sd,sw³,fd)	0	0	0	0	0	0 More...
Ultim (G) (fd)	?	?	?	?	5	5 More...

**Postemergence Grass Herbicides (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Dual II Magnum (E)* (sd,sw,fd)	0	8*	8	0	0	0
Frontier (E) (fd)	0	8*	8	0	0	0
Accent (E³) (sd,sw³,fd)	0	0	9	0	0	0
Ultim (G) (fd)	7	2	9*	?	?	5

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
³ - Use only on selected varieties - see precautions for tolerant varieties on label.
**Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
***Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Postemergence Broadleaf Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
2,4-D (G) (fd)*	4*	8*	2	?	4*	9* More...
2,4-DB (Caliber, Cobutox, Embutox)**(G) (fd)	4	8	0	?	0	7* More...
atrazine** + oil (G) (sd,sw,fd)	9*	7	9	?	9*	9* More...
Banvel II, Oracle (G) (fd)	9*	9	9*	9*	9*	9* More...
Basagran Forté (E) (sd,sw,fd)	7	9*	9*	5	9*	7* More...
Buctril M, Badge, Mextrol (G) (fd)	9*	9*	?	?	9*	9* More...
Callisto + atrazine (E) (fd)	8	8	?	?	9	9 More...
Distinct (E) (fd)	9	9	9	9	9*	9* More...
Impact + atrazine** (E) (fd)	8	9	?	9	9*	9* More...
Koril (E) (sw,fd)	9*	8*	?	?	9*	9* More...
Laddok (E) (sd,sw,fd)	9*	9*	9*	?	9*	9* More...
Marksman (E) (fd)	9*	9	9*	9	9*	9* More...
MCPA** (G) (fd)	2	7*	7	?	0	9* More...
Pardner (E) (sw,sd,fd)	9*	8*	?	?	9*	9* More...
Peakplus¹ (E) (fd)	?	9*	?	?	9*	9* More...
Shotgun (E) (fd)	9*	7	?	?	9*	9* More...
Summit (G) (fd)	?	?	?	?	?	9* More...
Tropotox Plus, Clovitox Plus, Topside (G) (fd)	8	8	0	?	0	7* More...

**Postemergence Broadleaf Herbicides (con't)**
Trade Name	Mustards	Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
2,4-D (G) (fd)*	9*	7	9*	8*	?	9
2,4-DB (Caliber, Cobutox, Embutox)**(G) (fd)	8*	7	9*	8*	?	8
atrazine** + oil (G) (sd,sw,fd)	9*	9	9*	9*	?	7
Banvel II, Oracle (G) (fd)	6*	9	9*	9*	9*	9*
Basagran Forté (E) (sd,sw,fd)	9*	7	8*	8*	8	9*
Buctril M, Badge, Mextrol (G) (fd)	9*	9*	8*	9*	?	9*
Callisto + atrazine (E) (fd)	9	9*	9*	8*	8	9*
Distinct (E) (fd)	6	9	9*	9*	9	9*
Impact + atrazine** (E) (fd)	9*	9*	9*	9*	9	7*
Koril (E) (sw,fd)	8*	9*	8*	9*	?	9*
Laddok (E) (sd,sw,fd)	9*	9*	9*	9*	?	9*
Marksman (E) (fd)	9*	9	9*	9*	9	9*
MCPA** (G) (fd)	9*	?	7*	9*	?	7
Pardner (E) (sw,sd,fd)	8*	9*	8*	9*	?	9*
Peakplus¹ (E) (fd)	9*	?	9*	9*	9	9*
Shotgun (E) (fd)	9*	9	9*	9*	?	9
Summit (G) (fd)	9	?	9*	9*	9	9*
Tropotox Plus, Clovitox Plus, Topside (G) (fd)	8*	7	9*	9*	?	9

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
** - Various formulations available, see Table 1, Herbicides Used in Ontario.
¹ - Indicates herbicides sold as a co-pack under this trade name.
**Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
***Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Postemergence Grass and Broadleaf Herbicides**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Battalion¹(G)* (fd)	9	?	8	?	8*	9* More...
Primextra II Magnum (E) (sd,sw,fd)	9*	7	9*	?	9*	9* More...

**Postemergence Grass and Broadleaf Herbicides (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Battalion¹(G)* (fd)	8*	8*	9*	9*	7	8*
Primextra II Magnum (E) (sd,sw,fd)	9*	9*	9*	9*	?	7

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
**Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
***Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Postemergence Grass and Broadleaf Herbicides (herbicide tolerant hybrids only)**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Liberty 200 SN⁴ (E⁴)*(fd⁴)**	8*	9*	?	7	8/9*	9* More...
glyphosate**⁵ (E⁵) (fd⁵)	8*	9*	8	8	8*	9* More...

**Postemergence Grass and Broadleaf Herbicides (herbicide tolerant hybrids only) (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Liberty 200 SN⁴ (E⁴)*(fd⁴)**	9*	9*	9*	9*	?	8/9*
glyphosate**⁵ (E⁵) (fd⁵)	9*	9*	9*	9*	7/8	9*

* - Indicates the weed is listed on the product label for control or suppresssion.
** - Various formulations available, see Table 1, Herbicides Used in Ontario.
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor
⁴ - For use on on glufosinate ammonium (Liberty Link) tolerant corn only.
⁵ - For use on Roundup Ready corn (glyphosate tolerant) only.

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**Postemergence Tank-Mixes**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Accent + Banvel II, Oracle (G)^* (fd)^**	9*	9	9*	9*	9*	9* More...
Accent + Callisto + atrazine* (E) (fd)	8	8	?	?	9	9 More...
Accent + Distinct, Accent Total¹ (E) (fd)	9	9	9	9	9*	9* More...
Accent + Marksman (E) (fd)	9*	9	9*	9	9*	9* More...
Accent + Pardner (E) (fd)	9*	8*	?	?	9*	9* More...
Accent + Peakplus¹, Accent One Pass¹(E) (fd)	?	9*	?	?	9*	9* More...
Accent + Shotgun (G) (fd)	9*	7	?	?	9*	9* More...
atrazine** + Banvel II or Oracle (G) (fd)	9*	9*	9*	9*	9*	9* More...
atrazine** + Buctril M, Badge, Logic M or Mextrol (G) (fd)	9*	9*	9	7	9*	9* More...
atrazine** + Koril (E) (sw,fd)	9*	8*	9	7	9*	9* More...
atrazine** + Pardner (E) (sd,sw,fd)	9*	8*	9	7	9*	9* More...
Banvel II or Oracle + 2,4-D**(G) (fd)	9*	9	9*	9	9*	9* More...
Banvel II or Oracle + Pardner or Koril (G) (fd)	9*	9	9*	9	9*	9* More...
Dual II Magnum + Banvel II or Oracle (G) (fd)	9*	9	9*	9	9*	9* More...
Dual II Magnum + Callisto + atrazine** (E) (fd)	9*	8	?	?	9*	9* More...
Dual II Magnum + Marksman (E) (fd)	9*	9	9*	9	9*	9* More...
Frontier + Banvel II or Oracle (G) (fd)	9*	9	9*	9	9*	9* More...
Frontier + Marksman (E) (fd)	9*	9	9*	9	9*	9* More...
Impact + Frontier + atrazine** (E) (fd)	8	9	?	9	9*	9* More...
Option 1.2.3.¹ (Option + Define) (E) (fd)	9*	?	?	?	9*	9* More...
Option + atrazine** (E) (fd)	9*	9	?	?	9*	9* More...
Option + Banvel II or Oracle (E) (fd)	9*	9	9*	9	9*	9* More...
Option + Callisto + atrazine** (E) (fd)	8	8	?	?	9	9 More..
Option + Distinct (E) (fd)	8	9	9	9	9*	9* More..
Option + Marksman (E) (fd)	9*	9	9*	9	9*	9* More...
Option + Pardner + atrazine** (E) (fd)	9*	8	?	?	9*	9* More...
Option + Peakplus¹ (E) (fd)	?	9	?	?	9*	9* More...
Primextra II Magnum + Banvel II or Oracle (E) (fd)	9*	9	9*	9	9*	9* More...
Primextra II Magnum + Callisto (E) (fd)	9*	8	?	?	9*	9* More...
Prowl + Accent + Banvel II or Oracle (G) (fd)	8*	8*	8	9*	9*	9* More...
Prowl + atrazine** (E) (fd)	9*	7	9*	?	9*	9* More...
Prowl + Banvel II or Oracle (E) (fd)	8*	8	8*	9	9*	9* More...
Prowl + Marksman (E) (fd)	9*	8	9*	9	9*	9* More...
Prowl + Shotgun (E) (fd)	9*	7	?	?	9*	9* More...
Summit + Accent (E) (fd)	?	9	?	?	?	9* More...
Ultim + Banvel II or Oracle (G) (fd)	9*	9	9*	9	9*	9* More...
Ultim + Callisto + atrazine** (G) (fd)	8	8	?	?	9	9 More...
Ultim + Distinct (Ultim Total)¹ (G) (fd)	9	9	9	9	9*	9* More...
Ultim + Marksman (G) (fd)	9*	9	9*	9	9*	9* More...
Ultim + Pardner (G) (fd)	9*	8*	?	?	9*	9* More...
Ultim + Pardner + atrazine** (G) (fd)	9*	8*	9	?	9*	9* More...
Ultim + Peakplus¹ (G) (fd)	?	9*	?	?	9*	9* More...
Ultim + Shotgun (G) (fd)	9*	7	?	?	9*	9* More...

**Postemergence Tank-Mixes (con't)**
Trade Name	Mustards	Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Accent + Banvel II, Oracle (G)^* (fd)^**	6*	9	9*	9*	?	9*
Accent + Callisto + atrazine* (E) (fd)	9	9*	9*	8*	?	9*
Accent + Distinct, Accent Total¹ (E) (fd)	6	9	9*	9*	9	9*
Accent + Marksman (E) (fd)	9*	9	9*	9*	9	9*
Accent + Pardner (E) (fd)	8*	9*	8*	9*	?	9*
Accent + Peakplus¹,Accent One Pass¹(E) (fd)	9*	8^d	9*	9*	9	9*
Accent + Shotgun (G) (fd)	9*	9	9*	9*	?	9
atrazine** + Banvel II or Oracle (G) (fd)	9*	9	9*	9*	9	9*
atrazine** + Buctril M, Badge, Logic M or Mextrol (G) (fd)	9*	9*	9*	9*	?	9*
atrazine** + Koril (E) (sw,fd)	9*	9*	9*	9*	?	9*
atrazine** + Pardner (E) (sd,sw,fd)	9*	9*	9*	9*	?	9*
Banvel II or Oracle + 2,4-D** (G) (fd)	9*	9	9*	9*	9	9*
Banvel II or Oracle + Pardner or Koril (G) (fd)	8*	9	9*	9*	?	9*
Dual II Magnum + Banvel II or Oracle (G) (fd)	6*	9	9*	9*	9	9*
Dual II Magnum + Callisto + atrazine** (E) (fd)	9*	9*	9*	9*	8	9*
Dual II Magnum + Marksman (E) (fd)	9*	9	9*	9*	9	9*
Frontier + Banvel II or Oracle (G) (fd)	6*	9	9*	9*	9	9*
Frontier + Marksman (E) (fd)	9*	9	9*	9*	9	9*
Impact + Frontier + atrazine** (E) (fd)	9*	9*	9*	9*	9	7*
Option 1.2.3.¹(Option + Define) (E) (fd)	9*	9	9*	9*	9	7
Option + atrazine** (E) (fd)	9*	9	9*	9*	?	9*
Option + Banvel II or Oracle (E) (fd)	9*	9	9*	9*	?	9*
Option + Callisto + atrazine** (E) (fd)	9	9*	9*	9*	8	9*
Option + Distinct (E) (fd)	9*	9*	9*	9*	9	9*
Option + Marksman (E) (fd)	9*	9	9*	9*	9	9*
Option + Pardner + atrazine** (E) (fd)	9*	9*	9*	9*	?	9*
Option + Peakplus¹ (E) (fd)	9*	9	9*	9*	9	9*
Primextra II Magnum + Banvel II or Oracle (E) (fd)	9*	9	9*	9*	9	9*
Primextra II Magnum + Callisto (E) (fd)	9*	9*	9*	9*	8	9*
Prowl + Accent + Banvel II or Oracle (G) (fd)	6	9*	9*	9*	9	8*
Prowl + atrazine** (E) (fd)	9	9	9*	9*	?	6
Prowl + Banvel II or Oracle (E) (fd)	6*	9	9*	9*	9	8*
Prowl + Marksman (E) (fd)	9*	9	9*	9*	9	8*
Prowl + Shotgun (E) (fd)	9*	9	9*	9*	?	9
Summit + Accent (E) (fd)	9	7*	9*	9*	9	9*
Ultim + Banvel II or Oracle (G) (fd)	7*	9	9*	9*	9	9*
Ultim + Callisto + atrazine** (G) (fd)	9	9*	9*	8*	8	9*
Ultim + Distinct Ultim Total¹ (G)(fd)	7	9	9*	9*	9	9*
Ultim + Marksman (G) (fd)	9*	9	9*	9*	9	9*
Ultim + Pardner(G)(fd)	8*	9*	8*	9*	?	9*
Ultim + Pardner+ atrazine** (G) (fd)	9*	9*	9*	9*	?	9*
Ultim + Peakplus¹ (G) (fd)	9*	?	9*	9*	9	9*
Ultim + Shotgun (G)(fd)	9*	9	9*	9*	?	9

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
** - Various formulations available, see Table 1, Herbicides Used in Ontario.
^a - Use the high rate of herbicide for optimum control.
d - The addition of atrazine is required to achieve this level of control.
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Postemergence Tank-Mixes (herbicide tolerant hybrids only)**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Liberty 200 SN³ + atrazine (E³) (fd³)*	8*	9*	9	7	8/9*	9* More...
Liberty 200 SN³ + Banvel II, Oracle (G³) (fd³)	9*	9*	9	9	8/9*	9* More...
Liberty 200 SN³ + Marksman (E³) (fd³)	9*	9*	?	9	8/9*	9* More...
Liberty 200 SN³ + Prowl (E³) (fd³)	8*	9*	?	?	8/9*	9* More...
Galaxy⁴ (E⁴) (fd⁴)	8*	9*	8	8	8*	9* More...
glyphosate^4,5 + atrazine** (E⁴) (fd⁴)	9*	9*	9	8	9*	9* More...
glyphosate^4,5 + Callisto + Aatrex Liquid 480 * (E⁴) (fd⁴)	9*	9*	9	8	9*	9* More...
glyphosate^4,5 + Marksman (E⁴) (fd⁴)	9*	9*	9	8	9*	9* More...
glyphosate^4,5 + Primextra II Magnum** (E⁴) (fd⁴)	9*	9*	9	8	9*	9* More...

**Postemergence Tank-Mixes (herbicide tolerant hybrids only) (con't)**
Trade Name	Mustards	Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Liberty 200 SN³ + atrazine (E³)** (fd³)*	9*	9*	9*	9*	?	8/9*
Liberty 200 SN³ + Banvel II, Oracle (G³) (fd³)	9*	9*	9*	9*	9	9*
Liberty 200 SN³ + Marksman (E³) (fd³)	9*	9*	9*	9*	9	9*
Liberty 200 SN³ + Prowl (E³) (fd³)	9*	9*	9*	9*	?	8/9*
Galaxy⁴ (E⁴) (fd⁴)	9*	9*	9*	9*	7/8	9*
glyphosate^4,5 + atrazine** (E⁴) (fd⁴)	9*	9*	9*	9*	7/8	9*
glyphosate^4,5 + Callisto + Aatrex Liquid 480 * (E⁴) (fd⁴)	9*	9*	9*	9*	7/8	9*
glyphosate^4,5 + Marksman (E⁴) (fd⁴)	9*	9	9*	9*	7/8	9*
glyphosate^4,5 + Primextra II Magnum** (E⁴) (fd⁴)	9*	9	9*	9*	7/8	9*

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
¹ - Indicates herbicides sold as a co-pack under this trade name.
³ - For use on on glufosinate ammonium (Liberty Link) tolerant corn only.
4- For use on Roundup Ready (glyphosate tolerant) corn only - see Table 4-2
5 - Various glyphosate products are registered for use in this tank-mix - see Table 9-5
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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**Directed Postemergence**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Lorox (G)*(sw,fc)	9*	9	9*	?	9*	9* More...
Ultim (G) (fc)	?	?	?	?	5	5 More...

**Directed Postemergence (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Lorox (G)*(sw,fc)	9*	9	9*	9*	?	9*
Ultim (G) (fc)	7	2	9*	?	?	5

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**Directed Postemergence (herbicide tolerant hybrids only)**
Trade Name	Wild Buckwheat	Cocklebur	Corn Spurry	Canada Fleabane	Lady's Thumb	Lamb's-quarters
Liberty 200 SN³ (E³)* (fd³	8*	9*	?	7	8/9*	9* More...

**Directed Postemergence (herbicide tolerant hybrids only) (con't)**
Trade Name	Mustards	Annual Nightshades	Pigweeds	Common Ragweed	Giant Ragweed	Velvetleaf
Liberty 200 SN³ (E³)* (fd³)	9*	9*	9*	9*	?	8/9*

* - Indicates the weed is listed on the product label for control or suppresssion.
³ - For use on on glufosinate ammonium (Liberty Link) tolerant corn only.
**Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
***Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

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In This Section

Topics

Table 9-1. Corn Herbicide Weed Control Ratings: Annual Broadleaf Weeds

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