Herbicide Recommendations for Brush Control: Constant Volume Foliar Applications


Pub 75: Guide to Weed Control > Roadsides and Non-Crop Areas > Herbicide Recommendations for Brush Control: Constant Volume Foliar Applications


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

Cover of Publication 75, Guide to Weed ControlTable of Contents

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

 

For Brush Control on Roadsides and Other Rights-of-Way

  • For most deciduous woody species (excluding white ash)
Arsenal
Trade Name
Active Ingredientimazapyr
Formulation240 g/L
Rate per hectare (active)0.72 kg/ha
Rate per hectare (product)3 L/ha
Rate per acre (product)1.2 L/ac

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

  • For maple, poplar, raspberry, and wildrose.
  • Apply in sufficient water (100-550 L/ha) (40-220 L/ac) to wet all foliage during periods of active growth.
Diphenoprop BK 700 or Estaprop or Dichlorprop D or Turboprop 600
Trade Name

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
Formulation
679 g/L
582 g/L
582 g/L
582 g/L
Rate per hectare (active)
3.8 - 10.2 kg/ha
3.8 - 10.2 kg/ha
3.8 - 10.2 kg/ha
3.8 - 10.2 kg/ha
Rate per hectare (product)
5.5 - 15 L/ha
6.5 - 17.5 L/ha
6.5 - 17.5 L/ha
6.5 - 17.5 L/ha
Rate per acre (product)
2.2 - 6 L/ac
2.6 - 7 L/ac
2.6 - 7 L/ac
2.6 - 7 L/ac

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

  • Apply in 750 - 1500 L/ha water (300 - 600 L/ac) during periods of active growth.
  • Rate of mixture depends on brush density or height.
Garlon 4
Trade Name
Active Ingredienttriclopyr
Formulation480 g/L
Rate per hectare (active)1.92 - 3.84 kg/ha
Rate per hectare (product)4 - 8 L/ha
Rate per acre (product)1.6 - 3.2 L/ac

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

  • Apply this low volatile ester in a minimum of 200 L/ha water (80 L/ac) during periods of active growth.
    Tordon 101
    Trade Name
    Active Ingredient picloram/2,4-D
    Formulation 305 g/L (1:3.7)
    Rate per hectare (active) 5.49 - 7.62 kg/ha
    Rate per hectare (product) 18 - 25 L/ha
    Rate per acre (product) 7.2 - 10 L/ac

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

  • Apply in 450 L/ha water (180 L/ac) during the active growing season.
  • Use an approved drift control system or additive.
  • A permit for purchase and use is required.
    Vanquish or Oracle + 2,4-D
    Trade Name
    + 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)
    2 kg/ha
    2 kg/ha
    3.8 kg/ha
    Rate per hectare (product)
    4.2 L/ha
    4.2 L/ha
    8 L/ha
    Rate per acre (product)
    1.7 L/ac
    1.7 L/ac
    3.2 L/ac

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

  • Apply in sufficient water (220-330 L/ha) (88-132 L/ac) to wet all foliage.
  • Amine or ester formulations of 2,4-D may be used.
    Vanquish or Oracle + Diphenoprop BK 700
    Trade Name
    Active Ingredient
    dicamba
    or dicamba
    + dichlorprop/2,4-D
    Formulation
    480 g/L
    480 g/L
    679 g/L
    Rate per hectare (active)
    2.5 kg/ha
    2.5 kg/ha
    4.9 kg/ha
    Rate per hectare (product)
    5.2 L/ha
    5.2 L/ha
    7.2 L/ha
    Rate per acre (product)
    2.1 L/ac
    2.1 L/ac
    2.9 L/ac

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

  • Apply in sufficient water (200-330 L/ha) (80-132 L/ac) to wet all foliage.

 

*See Table 4-1. Herbicides Used in Ontario, page 23, for formulations available. See label for specific uses and rates.

Related Links


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 16 June 2010