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

In This Section

Topics

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

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 Grasses

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 Broadleaf Weeds
- Perennial Weeds
- Table 9-1 (PDF file - 214kb)
Other Herbicide Recommendations for Corn
Corn Leaf Stages
Related Links

**Soil Applied Grass Herbicides**
Trade Name	Barn-yard Grass	Smooth Crab- grass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Witch Grass	Proso Millet
Dual II Magnum (E) (sd,sw,fd)*	9*	9*	9*	8^a*	8*	9*	9*	9*	4
Eradicane (E) (sw,fd)	9*	9*	9*	8*	8	9*	9*	9*	7
Frontier (E) (sd,sw,fd)	9*	9*	9*	8^a*	8*	9*	9*	9*	4
Prowl (E) (fd)	9*	9*	9*	9*	8*	8*	8*	?	5

? - Insufficient information available to make a rating.
* - Indicates the weed is listed on the product label for control or suppresssion.
^a - Use the high rate of herbicide 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

| Top of Page |

**Soil Applied Broadleaf Herbicides**
Trade Name	Barn-yard Grass	Smooth Crab- grass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Lorox (G)* (sw,sd)**	7*	7*	7*	7*	7*	7*	7*	7*	2
atrazine** (E) (sd,sw,fd)	2	2	2	2	2	2	2	2	2
Banvel II, Oracle (G) (fd)	0	0	0	0	0	0	0	0	0
Callisto (E) (sd,sw,fd)	2	0	3	0	2	2	2	2	2
Marksman (G) (fd)	2	2	2	2	2	2	2	2	2
Princep Nine-T, Simadex, Simazine 480 (E) (sd,sw,fd)	9*	8*	8*	7	9*	9*	9*	9*	2

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

| Top of Page |

**Soil Applied Grass and Broadleaf Herbicides**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Battalion¹(G)* (fd)	9	8*	8	9*	8	8*	8	9	7
Converge Pro¹(G) (fd)	9*	9*	9*	9*	9	9*	9*	9*	8*
Primextra II Magnum (E) (sd,sw,fd)	9*	9*	9*	8*	8*	9*	9*	9*	2

* - 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
¹ - Indicates herbicides sold as a co-pack under this trade name.

| Top of Page |

**Soil Applied Tank-Mixes**
Trade Name	Barn-yard Grass	Smooth Crab-grass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Dual II Magnum + Banvel II or Oracle (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Dual II Magnum + Callisto + atrazine** (E) (sd,sw,fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Dual II Magnum + Converge Pro¹ (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	6
Dual II Magnum + Lorox + atrazine** (E) (sw)	9*	9*	9*	8*	8*	9*	9*	9*	2
Dual II Magnum + Marksman (E) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Eradicane + atrazine**(E) (sw,fd)	9*	9*	9*	8*	8*	9*	9*	9*	7
Eradicane + Sencor (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	7
Frontier + atrazine**(E) (sw,fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Frontier + Banvel II, Oracle (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Frontier + Marksman (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Lorox + atrazine**(E) (fd)	7*	7*	7*	7*	7*	7*	7*	7*	2
Primextra II Magnum + Banvel II, Oracle (G) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Primextra II Magnum + Callisto + atrazine** (E) (sd,sw,fd)	9*	9*	9*	8*	8*	9*	9*	9*	4
Primextra II Magnum + Lorox (E) (fd)	9*	9*	9*	8*	8*	9*	9*	9*	2
Prowl + atrazine**(E) (fd)	9*	9*	9*	9*	8*	8*	8*	?	5
Prowl + Banvel II, Oracle (E) (fd)	9*	9*	9*	9*	8*	8*	8*	?	5
Prowl + Marksman (E) (fd)	9*	9*	9*	9*	8*	8*	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

| Top of Page |

**Postemergence Grass Herbicides**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Dual II Magnum (E)* (sd,sw,fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Frontier (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Accent (E³) (sd,sw³,fd)	9*	0	7/8	9*	9*	9*	8*	9*	9*
Ultim (G) (fd)	9*	0	7/8	9*	9*	9*	7*	9*	9*

^a - Use the high rate of herbicide for optimum control.
³ - Use only on selected varieties - see precautions for tolerant varieties on label.
* - 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

| Top of Page |

**Postemergence Broadleaf Herbicides**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
2,4-D (G) (fd)*	0	0	0	0	0	0	0	0	0
2,4-DB (Caliber, Cobutox, Embutox)**(G) (fd)	0	0	0	0	0	0	0	0	0
atrazine** + oil (G) (sd,sw,fd)	4	4	4	0	4	4	4	4	4
Banvel II, Oracle (G) (fd)	0	0	0	0	0	0	0	0	0
Basagran Forté (E) (sd,sw,fd)	0	0	0	0	0	0	0	0	0
Buctril M, Badge, Logic M, or Mextrol (G) (fd)	0	0	0	0	0	0	0	0	0
Callisto + atrazine** (E) (fd)	2	0	4	0	2	2	2	2	2
Distinct (E) (fd)	?	?	?	?	?	?	?	?	?
Impact + atrazine **	7*	7*	7*	7	8	7*	7*	7	7
Koril (E) (sw,fd)	0	0	0	0	0	0	0	0	0
Laddok (E) (sd,sw,fd)	0	0	0	0	0	0	0	0	0
Marksman (E) (fd)	7	0	0	0	7	7	7	7	0
MCPA** (G) (fd)	0	0	0	0	0	0	0	0	0
Pardner (E) (sw,sd,fd)	0	0	0	0	0	0	0	0	0
Peakplus¹ (E) (fd)	0	0	0	0	0	0	0	0	0
Shotgun (E) (fd)	0	0	0	0	0	0	0	0	0
Summit (G) (fd)	?	?	?	?	?	?	?	?	?
Tropotox Plus, Clovitox Plus, Topside (G) (fd)	0	0	0	0	0	0	0	0	0

? - Insufficient information available to make a rating.
¹ - Indicates herbicides sold as a co-pack under this trade name.
** - 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

| Top of Page |

**Postemergence Grass and Broadleaf Herbicides**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Battalion¹ (G)**(fd)*	9*	8*	8*	9*	8*	8*	8*	9*	7
Primextra II Magnum (E) (sd,sw,fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2

**Postemergence Grass and Broadleaf Herbicides (herbicide tolerant hybrids only)**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Liberty 200 SN³(E³)*(fd³)**	9*	9*	9*	9*	9*	9*	8/9*	9*	9*
glyphosate**⁴ (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9

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 corn (glyphosate tolerant) only.
* - 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

| Top of Page |

**Postemergence Tank-Mixes**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crabgrass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Accent + Banvel II, Oracle (G)³ (fd)⁴	9*	0	7/8	9*	9*	9*	8*	9*	9*
Accent + Callisto + atrazine* (E) (fd)	9*	0	7/8	9*	9*	9*	8*	9*	9*
Accent + Distinct, Accent Total¹ (E) (fd)	9*	0	7/8	9*	9*	9*	8*	9*	9*
Accent + Marksman (E) (fd)	9*	0	7/8	9*	9*	9*	7*	9*	9*
Accent + Pardner (E) (fd)	9*	0	7/8	9*	9*	9*	8*	9*	9*
Accent + Peakplus¹, Accent One Pass¹(E) (fd)	9*	0	7/8	9*	9*	9*	8*	9*	9*
Accent + Shotgun (G) (fd)	7*	?	?	9*	?	7*	7*	?	?
atrazine** + Banvel II or Oracle (G) (fd)	4	4	4	0	4	4	4	4	4
atrazine**+ Buctril M, Badge. Logic M, or Mextrol (G) (fd)	4	4	4	0	4	4	4	4	4
atrazine**+ Koril (E) (sw,fd)	4	4	4	0	4	4	4	4	4
atrazine** + Pardner (E) (sd,sw,fd)	4	4	4	0	4	4	4	4	4
Banvel II or Oracle + 2,4-D**(G) (fd)	0	0	0	0	0	0	0	0	0
Banvel II or Oracle + Pardner or Koril (G) (fd)	0	0	0	0	0	0	0	0	0
Dual II Magnum + Banvel II or Oracle (G) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Dual II Magnum + Callisto + atrazine** (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	4
Dual II Magnum + Marksman (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Frontier + Banvel II or Oracle (G) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Frontier + Marksman (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Impact + Frontier + atrazine** (E) (fd)	9*	9*	9*	9*	8	8*	8*	9*	?
Option 1.2.3. (E) (fd)	9*	7*	7*	9*	9	9*	9*	9*	7*
Option + atrazine** (E) (fd)	9*	0	7*	9*	9	9*	7*	9*	9*
Option + Banvel II or Oracle (E) (fd)	9*	0	7*	9*	9	9*	8*	9*	9*
Option + Callisto + atrazine** (E) (fd)	9*	0	7*	9*	9	9*	8*	9*	9*
Option + Distinct (E) (fd)	9*	0	7*	9*	9	9*	8*	9*	9*
Option + Marksman (E) (fd)	9*	0	7*	9*	9	9*	7*	9*	9*
Option + Pardner + atrazine** (E) (fd)	9*	0	7*	9*	9	9*	7*	9*	9*
Option + Peakplus¹ (E) (fd)	9*	0	7*	9*	9	9*	8*	9*	9*
Primextra II Magnum + Banvel II or Oracle (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	2
Primextra II Magnum + Callisto (E) (fd)	9*	9*	9*	8^a*	8*	8*	8*	9*	4
Prowl + Accent + Banvel II or Oracle (G) (fd)	9*	9	9	9*	8	8*	8*	9*	7*
Prowl + atrazine**(E) (fd)	9*	8*	8*	9*	8*	8*	8*	7	5
Prowl + Banvel II or Oracle (E) (fd)	9*	8*	8*	9*	8*	8*	8*	?	5
Prowl + Marksman (E) (fd)	9*	8*	8*	9*	8*	8*	8*	8*	5
Prowl + Shotgun (E) (fd)	9*	8*	8*	9*	8*	8*	8*	7	5
Summit + Accent (E) (fd)	9*	0	7/8*	9*	9*	9*	8^a*	9*	9*
Ultim + Banvel II or Oracle (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Callisto + atrazine** (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Distinct Ultim Total¹ (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Marksman (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Pardner (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Pardner + atrazine** (G) (fd)	9*	0	7/8*	9*	9	9*	7*	9*	9*
Ultim + Peakplus¹ (G) (fd)	9*	0	7/8*	9*	9*	9*	7*	9*	9*
Ultim + Shotgun (^G) (fd)	8*	0	7/8*	8*	?	9*	7*	?	?

* - 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.
¹ - Indicates herbicides sold as a co-pack under this trade name.
⁴ - Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
³ - Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

| Top of Page |

**Postemergence Tank-Mixes (herbicide tolerant hybrids only)**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Liberty 200 SN³ + atrazine (E³)** (fd⁴)*	9*	9*	9*	9*	9*	9*	8/9*	9*	9*
Liberty 200 SN³ + Banvel II, Oracle (G³) (fd³)	9*	9*	9*	9*	9*	9*	8/9*	9*	9*
Liberty 200 SN³ + Marksman (E³) (fd³)	9*	9*	9*	9*	9*	9*	8/9*	9*	9*
Liberty 200 SN³ + Prowl (E³) (fd³)	9*	9*	9*	9*	9*	9*	8/9*	9*	9*
Galaxy⁴ (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9
glyphosate^4,5 + atrazine** (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9
glyphosate^4,5 + Callisto + Aatrex Liquid 480 * (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9
glyphosate^4,5 + Marksman (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9
glyphosate^4,5 + Primextra II Magnum** (E⁴) (fd⁴)	9*	9*	9*	9*	9*	9*	9*	9	9

* - 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.
³ - For use on on glufosinate ammonium (Liberty Link) tolerant corn only.
⁴ - For use on Roundup Ready corn (glyphosate tolerant) only.
***Crop Registrations: fd - field corn, sw - sweet corn, sd - seed corn
****Crop tolerance rating: E - Excellent, G - Good, F - Fair, P - Poor

| Top of Page |

**Directed Postemergence**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Lorox (G)*(sw,fc)	9*	7*	7*	9*	8*	8*	8*	9*	8
Ultim (G) (fc)	9*	0	7/8*	9*	9	9*	7*	9*	9*

**Directed Postemergence (herbicide tolerant hybrids only)**
Trade Name	Barn-yard Grass	Smooth Crabgrass	Large Crab- grass	Fall Pani-cum	Giant Foxtail	Green Foxtail	Yellow Foxtail	Old Witch Grass	Proso Millet
Liberty 200 SN⁴ (E³)* (fd³)	9*	9*	9*	9*	9*	9*	8/9*	9*	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

| Top of Page |

In This Section

Topics

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

Table of Contents

Related Links