Herbicide Recommendations for Brush Control: Basal-Bark Treaments in Oil as a Carrier


Pub 75: Guide to Weed Control > Roadsides and Non-Crop Areas > Herbicide Recommendations for Brush Control: Basal-Bark Treaments in Oil as a Carrier


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. 2,4-D
  3. Diphenoprop BK 700, or Desormone, or Estaprop, or Dichlorprop D, or Turboprop 600
  4. Garlon 4
  5. Related Links

 

Introduction

The BASAL -BA RK treatment is useful on a wide range of trees and brush with a trunk diameter up to about 15 cm. Apply the chemical so as to thoroughly cover the basal 30 cm of the trunk and any exposed roots. For oak, hickory, basswood or ash, treatments are most effective from February to June. Most other species may be treated at any season of the year.


Light, simple equipment, coupled with the possibility of winter operations when labor is cheaper and access to swampy areas possible, give this treatment an important role in a brush control program.

2,4-D
Trade Name

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)
3 kg/100 L
3 kg/100 L
3 kg/100 L
Rate per hectare (product)
6.4 L/100 L
5.3 L/100 L
4.55 L/100 L

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

  • For hawthorn. Use the low-volatile ester formulations in fuel oil.
Diphenoprop BK 700 or Desormone or Estaprop or Dichlorprop D or Turboprop 600
Trade Name

or Desormone

or
Estaprop

or Dichlorprop D
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)
1.9 - 3 kg/100 L
1.9 - 3 kg
/100 L
1.9 - 3 kg
/100 L
1.9 - 3 kg
/100 L
1.9 - 3 kg
/100 L
Rate per hectare (product)
2.8 - 4.4 L/100 L
2.8 - 4.4 L /100 L
3.2 - 5.2 L /100 L
2.3 L/100 L
2.4 - 3.2 L /100 L

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

  • For most woody species, including conifers.
  • Use the low-volatile ester formulations in fuel oil.
  • Spray bark to wet only.
    Garlon 4
    Trade Name
    Active Ingredient triclopyr
    Formulation 480 g/L
    Rate per hectare (active) 9.6 - 14.4 kg/100 L
    Rate per hectare (product) 20 - 30 L/100L

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

  • For most woody species, not including conifers.
  • Apply a 20%-30% solution mixed in mineral or vegetable oil.
  • One Sided Low Volume - This low volume treatment can be applied to stems less than 15 cm in diameter. Apply the spray to thoroughly wet at least one side of the stem and root crown but not to the point of run-off.
  • Streamline - Apply sufficient spray to one side of stems less than 8 cm in basal diameter to form a band that is 5 cm in width. The treatment zone should widen to encircle the stem within 30 minutes. Treat both sides of stems which are 8 - 12 cm in basal diameter.

 

*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