Herbicide Recommendations for Brush Control: Stump Treatment After Cutting to Most Deciduous Woody Species


Pub 75: Guide to Weed Control > Roadsides and Non-Crop Areas > Herbicide Recommendations for Brush Control: Stump Treatment After Cutting to Most Deciduous Woody Species


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. Tordon 101
  6. Related Links

 

Introduction

In many cases, it is more desirable to remove existing brush by hand than to spray it and leave the dead material standing. Chemical stump treatment is particularly useful in preventing the vigorous regrowth that is the characteristic response of many deciduous species after cutting. Moreover killing the stump is the first step towards encouraging it to rot.


Most treatments must be applied to freshly cut stumps to achieve maximum effectiveness. For old stumps, it is best to drill several holes or to split stump with a wedge before applying the treatments. Spray regrowth from an old stump along with the stump. Various dye materials may be added to the oil based sprays to assure that all exposed surfaces of the stumps are treated.

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)
2 kg/100 L
2 kg/100 L
2 kg/100 L
Rate per hectare (product)
4.25 L/100 L
3.55 L/100 L
3 L/100 L

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

  • Apply in oil as a carrier.
  • Apply in diesel fuel to run-off.
    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 kg/100 L
    1.9 kg/100 L
    1.9 kg/100 L
    1.9 kg/100 L
    1.9 kg/100 L
    Rate per hectare (product)
    2.8 L/100 L
    2.8 L/100 L
    3.25 L/100 L
    3.25 L/100 L
    3.25 L/100 L

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

  • Apply in oil as a carrier.
    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/100 L

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

  • Apply in oil as a carrier to cut stump.
  • Thoroughly wet all cut surfaces and any exposed bark.
  • Treatment can be performed any time after mechanical removal.
    Tordon 101
    Trade Name
    Active Ingredient picloram/2,4-D
    Formulation 305g/L (1:3.7)
    Rate per hectare (active) 3.05 kg/10 L
    Rate per hectare (product) 10 L/10 L

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

  • Dilute 1:1 with water or 1:1 with ethylene glycol if below freezing.
  • A permit for purchase and use is required.
*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:
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Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 16 June 2010