Herbicide Recommendations for Brush Control: Stem Foliage Treatments Applied to "Runoff"

Excerpt from 2010-2011 Chapter 18, Publication 75, Guide to Weed Control, Order this publication

Table of Contents

1. Introduction
2. 2,4-D
3. Diphenoprop BK 700, or Desormone, or Estaprop, or Dichlorprop D, or Turboprop 600
4. Garlon 4
5. Glyphosate
6. Krenite
7. Tordon 101
8. Vanquish or Oracle + 2,4-D
9. Vanquish or Oracle + Diphenoprop BK 700 or Desormone
1. Related Links

Introduction

Stem foliage treatment of brush should be limited to smaller growth (less than 2 m in height). Treatments should be applied to thoroughly wet the stems and foliage to the point of runoff. This technique is most effective just after full leaf development in late spring or early summer.

The choice of herbicides for controlling stands of deciduous brush should be based on the susceptibilities of the predominant species (Table 18-1. Susceptibility of Woody Plants to Various Herbicides and Mixtures as Foliage Sprays, on page 333) or whether the brush to be controlled is near homes, recreational areas, etc.

2,4-D

Trade Name	2,4-D *	or 2,4-D *	or 2,4-D *
Active Ingredient	2,4-D*	or 2,4-D*	or 2,4-D*
Formulation	470 g/L	564 g/L	660 g/L
Rate per hectare (active)	1.7 - 4.8 kg/1,000 L	1.7 - 4.8 kg/1,000 L	1.7 - 4.8 kg/1,000 L
Rate per hectare (product)	3.6 - 9 L/1,000 L	3 - 8.5 L/1,000 L	2.6 - 7.3 L/1,000 L

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

• One application may be sufficient for sensitive species.
• For intermediately sensitive species, repeated treatments are normally required.

Diphenoprop BK 700, or Desormone, or Estaprop, or Dichlorprop D, or Turboprop 600

Trade Name	Diphenoprop BK 700	or Desormone	or Estaprop	or Dichlorprop D	or Turboprop 600
Active Ingredient	dichlorprop/2,4-D	or dichlorprop/2,4-D	or dichlorprop/2,4-D	or dichlorprop/2,4-D	or dichlorprop/2,4-D
Formulation	679 g/L	680 g/L	582 g/L	582 g/L	582 g/L
Rate per hectare (active)	5.1 - 6.8 kg/1,000 L	5.1 - 6.8 kg/1,000 L	5.1 - 6.8 kg/1,000 L	5.1 - 6.8 kg/1,000 L	5.1 - 6.8 kg/1,000 L
Rate per hectare (product)	7.5 - 10 L/1,000 L	7.5 - 10 L/1,000 L	8.75 - 11.7 L/1,000 L	8.75 - 11.7 L/1,000 L	8 - 11 L/1,000 L

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

• Apply the low-volatile ester in areas dominated by species expected to be tolerant to 2,4-D alone.

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  Garlon 4

  Trade Name	Garlon 4
  Active Ingredient	triclopyr
  Formulation	480 g/L
  Rate per hectare (active)	1.92 - 3.84 kg/1,000 L
  Rate per hectare (product)	4 - 8 L/1,000 L

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

• Apply to the point of run-off when the brush is actively growing.
• Use the higher rate for the more difficult to control species.

 

Glyphosate

Trade Name	glyphosate *	or glyphosate *	or glyphosate*	or glyphosate *
Active Ingredient	glyphosate*	or glyphosate*	or glyphosate*	or glyphosate*
Formulation	360 g/L	480 g/L	500 g/L	540 g/L
Rate per hectare (active)	3.6 - 7.2 kg/1,000 L	3.6 - 7.2 kg/1,000 L	3.6 - 7.2 kg/1,000 L	3.6 - 7.2 kg/1,000 L
Rate per hectare (product)	10 - 20 L/1,000 L	7.5 - 15 L/1,000 L	7.2 - 14.4 L/1,000 L	6.67 - 13.3 L/1,000 L

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

• Most woody and herbaceous species. Can be applied during June, July or August.
• Injury to grasses will occur; use other selective products if grasses are to be maintained.

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Krenite

Trade Name	Krenite
Active Ingredient	fosamine ammonium
Formulation	480 g/L
Rate per hectare (active)	4.81 - 7.21 kg/1,000 L
Rate per hectare (product)	10 - 15 L/1,000 L

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

• For oak, maple, alder, hickory and ash.
• Additional surfactants may be required for difficult species.

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Tordon 101

Trade Name	Tordon 101
Active Ingredient	picloram/2,4-D
Formulation	305 g/L (1:3.7)
Rate per hectare (active)	3.05 kg/1,000 L
Rate per hectare (product)	10 L/1,000 L

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

• Excluding white ash.
• Apply to wet the stems and foliage to the point of runoff when the leaves are fully expanded.
• A permit for purchase and use is required.

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Vanquish or Oracle + 2,4-D

Trade Name	Vanquish	or Oracle	+ 2,4-D
Active Ingredient	dicamba	or dicamba	+ 2,4-D
Formulation	480 g/L	480 g/L	470 g/L
Rate per hectare (active)	1.9 kg/1,000 L	1.9 kg/1,000 L	3.8 kg/1,000 L
Rate per hectare (product)	4 L/1,000 L	4 L/1,000 L	8 L/1,000 L

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

• Apply to the point of runoff when the leaves are fully expanded.

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Vanquish or Oracle + Diphenoprop BK 700 or Desormone

Trade Name	Vanquish	or Oracle	+ Diphenoprop BK 700	or Desormone
Active Ingredient	dicamba	or dicamba	+ dichlorprop / 2,4-D	or dichlorprop /2,4-D
Formulation	480 g/L	480 g/L	679 g/L	680 g/L
Rate per hectare (active)	2.5 kg/1,000 L	2.5 kg/1,000 L	4.9 kg/1,000 L	4.9 kg/1,000 L
Rate per hectare (product)	5.2 L/1,000 L	5.2 L/1,000 L	7.15 L/1,000 L	7.15 L/1,000 L

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

• For white ash and sugar maple.
• Apply to the point of runoff when leaves are fully expanded.
 

Related Links

• Weeds in Ontario
• Problem Weed Control in Field Crops
• Integrated Pest Management (IPM)
• Pesticide Application and Safety
• Pesticide Companies and Agents
• OMAFRA Sprayer Calibration Calculator
• Search the PMRA website
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 75: Guide To Weed Control