Table 4-4: Herbicide Crop Rotation and Soil pH Restrictions (Field Crops)


Pub 75: Guide to Weed Control > Notes on Herbicides > Table 4-4: Herbicide Crop Rotation
and Soil pH Restrictions (Field Crops)

Excerpt from 2010-11 Chapter 4, Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Herbicide Crop Rotation and Soil pH Restrictions (Field Crops) (Table 4-4) (PDF file - 71 kb)
  2. Other Tables on Herbicides and Adjuvants
    • Herbicides Used in Ontario (Table 4-1) (PDF file - 87 kb)
    • Description for Ontario Classification of Pesticide Produce (Table 4-2) (PDF file - 44 kb)
    • Glyphosate Products, Registered Uses and Rates Needed to Control Specific Weed Species in Flyphosate Tolerant Crops (Table 4-3) (PDF file - 87 kb)
    • Herbicide Crop Rotation & Soil pH Restrictions (Horticultural Crops) (Table 4-5) (PDF - 71 kb)
    • Herbicide Groupings for Ontario (Table 4-6) (PDF file - 53 kb)
    • Interval Before Rainfall (Postemergence) (Table 4-7) (PDF - 48 kb)
    • Adjuvants Used in Ontario (Table 5-1) (PDF file 49 kb)
    • Adjuvant Rates per Sprayer Tank Water Volume (Table 5-2) (PDF file 41 kb)
  3. Other topics on Notes on Herbicides and Adjuvants
  4. Related Links

Table 4-4: Herbicide Crop Rotation and Soil pH Restrictions (Field Crops)

Number of months between application and planting
Trade Name Alfalfa Barley Barley (under-seeded) Beans, Kidney Beans, White Canola Canola (Pursuit tolerant)

Clover,
Red
Accent 10* 10* 10* f 10* 10* 10* 10*
Accent 1-Pass1 22* 10* f f 10* f f f
Accent Total1 10* 10* 10* f 10* 10* 10* 10*
Atrazine
<1.0 kg ai/ha		 10 10 10 10 10 22 22 10
Atrazine
>1.0-1.5 kg ai/ha		 22 10 22 22 22 22 22 22
Battalion1 f 10* f f 10* 10* 10* 10*
Broadstrike Dual Magnum (Soil pH >7.8 and OM < 2%) 10 10* f 10* 10* 26 26 10
Callisto 11* 10 f f 11* f f 22
Chateau 11* 11* 11* 9* 9* 9* 9* f
Classic (Soil pH 7.4 and less) 10* 10 f f 10* f f f
Classic (Soil pH 7.4 to 7.8) 22 22 f f 22 f f f
Classic (Soil pH 7.8 to 8.0) 22 22 f f 22 f f f
Cleansweep1 22 10 22 10* 10* 22 10 22
Command 360 ME 16* 16* 16* 10* 10* 10* 10* 16*
Conquest LQ1 22 10 22 22 22 22 22 22
Converge Flexx1 10 10 f f f 10* 10* f
Firstrate 9 f f 9* 9* 26* 26* f
Galaxy1 f 10* f f 10* 10* f 10*
Infinity 10* R f f f 10* 10* f
Impact f f f f* 10 f f f
Lontrel 22 10* 22 22 22 R R 22
Milestone 48 10 10 48 48 10 10 48
Muster 22* 10* f f 22* R R 22*
Option 1.2.3 10* 10* 10* 10* 10* 22 22 22
Option 2.25 OD 10*
10*
10*
10*
10*
10*
 10*
10*
Peakplus1 22* 10* f f 10* f f f
Pursuit R 10 22 R R 22 R 22
Prism f 10* f f 10* 10 10 10*
Reflex f f f R R 18* 18* f
Sencor
(Soil pH >7.5)		 10* 10 10 10 10 22 22 10
Simazine/Princep < 2 kg ai/ha R 10 10 22 22 22 22 22
Simazine/Princep > 2 kg ai/ha R 22 22 22 22 22 22 22
Ultim f 10* f f 10* 10* 10* 10*
Ultim Total 1 f 10* f f 10* 10* 10* 10*
Valera 11* 11* 11* 9* 9* 9* 9* f


Herbicide Crop Rotation and Soil pH Restrictions (Field Crops) (con't)
Trade Name Field Corn Seed Corn Flax-linseed Oats Oats (under-seeded)

Peanuts

 Fall
Rye
Accent R f f f f f f
Accent 1-Pass1 R f f f f f f
Accent Total1 R f f f f f f
Atrazine
<1.0 kg ai/ha		 R R 10 10 10 22 10
Atrazine
>1.0-1.5 kg ai/ha		 R R 10 22 22 22 10
Battalion1 R f f f f f f
Broadstrike Dual Magnum (Soil pH >7.8 and OM < 2%) 10* 10* f f f f f
Callisto R R f 10 f f 4
Chateau 9* 9* f f f f f
Classic (Soil pH 7.4 and less) 10* f f f f f f
Classic (Soil pH 7.4 to 7.8) 10* f f f f f f
Classic (Soil pH 7.8 to 8.0) 22* f f f f f f
Cleansweep1 10* 22 22 22 22 22 22
Command 360 ME 10* 10* 16* 16* 16* 16* 16*
Conquest LQ1 10 22 22 22 22 22 22
Converge Flexx1 R 10* f 10* f f f
Firstrate 9* f f f f 9* f
Galaxy1 R4 f f f f f f
Infinity 10* f 10* 10* 10* f f
Impact R f* f* f* f* f* f*
Lontrel 10 22 10* 10* 22 22 10
Milestone 10 10 10 10 10 10 f
Muster f f 10* 10* F f f
Option 1.2.3 R
f
f
10*
10
f
f
Option 2.25 OD R f f 10* 10 f f
Peakplus1 R f f 10* f f f
Pursuit 10* 22 22 22 22 22 22
Prism R f f f f f f
Reflex R f f f f f f
Sencor
(Soil pH >7.5)		 R 10 10 10 10 10 10
Simazine/Princep < 2 kg ai/ha R 10 22 10 10 10 10
Simazine/Princep > 2 kg ai/ha R 22 22 22 22 22 22
Ultim R f f f f f f
Ultim Total 1 R f f f f f f
Valera 9* 9* f f f f f


Herbicide Crop Rotation and Soil pH Restrictions (Field Crops) (con't)
Trade Name Fall Rye
(under-seeded) 		Soybeans

Sun-
flowers

 Tobacco Spring Wheat Spring Wheat (under-seeded) Winter Wheat Winter
Wheat
(with red clover)
Accent f 10* f f f f 4* 10*
Accent 1-Pass1 f 10* f f f f f f
Accent Total1 f 10* f f f f 4* f
Atrazine
<1.0 kg ai/ha		 10 10 22 22 10 10 4 10
Atrazine
>1.0-1.5 kg ai/ha		 22 10 22 22 10 22 10 22
Battalion1 f 10* f f f f 4* 10*
Broadstrike Dual Magnum (Soil pH >7.8 and OM < 2%) f R f f 10* f 4* f
Callisto f 11* f f 10* f 4* f
Chateau f R 9 f 8* 11* 4* f
Classic (Soil pH 7.4 and less) f R f f f f 3* f
Classic (Soil pH 7.4 to 7.8) f R f f f f 4* f
Classic (Soil pH 7.8 to 8.0) f R f f f f 4* f
Cleansweep1 22 R 22 22 10 22 3.3* 22
Command 360 ME 16* R 16* 16* 16* 16* 16* 16*
Conquest LQ1 22 R 22 22 10* 22 4* 22
Converge Flexx1 f 10* f f 10* f 4 f
Firstrate f R 30* 30* f f 4 f
Galaxy1 f 10* f f f f 4* f
Infinity f 10* f f R f R f
Impact f* 10* f* f* 10* f* 4* f
Lontrel 22 22 22 22 10* 22 10* 22
Milestone 10 48 48 48 10 10 10 10
Muster f 10* f f 10* F 4 F
Option 1.2.3 f 10* f f 10 10 4* 10*
Option 2.25 OD f 10* f f 10* 10 4* 10*
Peakplus1 F 10* f f f f f f
Pursuit 22 R 22 22 10 22 3.3* 22
Prism f 10* f f f f 4* 10*
Reflex f R f f 10* f 4* f
Sencor
(Soil pH >7.5)		 10 R 10 22 10 10 3.3 10
Simazine/Princep < 2 kg ai/ha 10 22 22 22 10 10 10 10
Simazine/Princep > 2 kg ai/ha 22 22 22 22 22 22 22 22
Ultim f 10* f f f f 4* f
Ultim Total 1 f 10* f f f f 4* f
Valera f R 9* f 8* 11* 4* f

R - Registered for application on this crop.
f - Field bioassay; user assumes liability for all crops not indicated on the label.
1 - Herbicides sold as a co-pack under this trade name.
4 - For use only on glyphosate tolerant (Roundup Ready) field corn hybrids.

* Numbers indicate that the re-crop restriction (in months) is listed on the produce label. Numbers without * indicate that the re-crop restriction (in months) is based on the best available information and the manufacturer of the specified produce should be contacted for more information.

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Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 30 January 2010