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

Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 20 June 2008

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 2008 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, , Estaprop or Dichlorprop
  4. Garlon 4
  5. Tordon 101
  6. Roadsides & Brush Control Herbicide Rating Tables
    • Susceptibility of Woody Plants to Various Herbicides & Mixtures as Foliage Sprays (Table 18-1 ) (PDF 12k)
    • Classification of Weeds According to Response to Various Foliage Sprays (Table 18-2) (PDF 14k)
  7. Other Brush Control Weed Control Recommendations
  8. 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.

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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 kg/100 L
3.55 L/100 L
3 L/100 L

Precautions

  • Apply in oil as a carrier.
  • Apply in diesel fuel to run-off.
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Diphenoprop or Desormone or Estaprop or Dichlorprop 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
3.2 L/100 L

Precautions

  • Apply in oil as a carrier.
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Garlon 4
Trade Name
Active Ingredient triclopyr
Formulation 480 g/L
Rate per hectare (active) 9.6 to 14.4 kg/100 L
Rate per hectare (product) 20 to 30 L/100 L

Precautions

  • 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.

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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

  • Dilute 1:1 with water or 1:1 with ethylene glycol if below freezing.
  • A permit for purchase and use is required.
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