Herbicides for African Boxthorn Control

Disclaimer

These herbicide recommendations are made subject to the product being registered for that purpose under relevant legislation. It is the user's responsibility to check that registration or an off-label permit covers the proposed use. Always read the herbicide label.

If in doubt, visit the Australian Pesticides and Veterinary Medicines Authority (APVMA) website at www.apvma.gov.au

Only herbicides registered for use in pasture and non-cropping situations are listed in the following table. Care must be taken in using herbicides as non-target plants contacted may be harmed. For recommendations in specific crops consult an agronomist.

Wetting agents

Carefully consult the product label for specific directions regarding the use of wetting agents or adjuvants.

Waterways and wetlands

Be careful! Many herbicides can cause damage to waterways and wetlands. Check the herbicide label directions carefully before use near waterways and wetlands. For more information see Guidelines for Safe and Effective Herbicide Use Near Waterways.

Herbicide Brands and Concentrations

Herbicides are referred to by the active chemical ingredient in the following table. The product trade names in this publication are supplied on the understanding that no preference between equivalent products is intended and that the inclusion of a product does not imply endorsement by DPIPWE over any other equivalent product from another manufacturer. Information on available brands containing the herbicide you require should be obtained from a reputable herbicide supplier or the APVMA website at www.apvma.gov.au

There may be a number of products with the same active ingredient some with alternate formulations (concentration) registered for control of a weed eg: Glyphosate 360 g/L, Glyphosate 450 g/L may be registered for use on the same weed. Alternate formulations such as these will have a different application rate. ALWAYS check the label.

Foliar spray application

Stage of Growth
Herbicide
(active
ingredient)
Example of commercial product (concentration of active ingredient)
Application rate of commercial product
Withholding
period
Comments
Actively growing to mature
Glyphosate
360 g/L (where product has an aquatic registration)
Weedmaster Duo
360 g/L
Roundup Biactive®
360 g/L
knapsack
100 mL - 150 mL in 15 L
or
high volume
700 mL -1000 mL /
100 L of water
Non agricultural areas (refer label).

Use lower rate on young bushes.

Spray to wet all foliage. Do not spray during hot, dry conditions.
Glyphosate *
360 g/L (where product has an aquatic registration)
Weedmaster Duo
360 g/L
Roundup Biactive®
360 g/L
10-13 ml/L Non cropping and bushland in accordance with APVMA Permit PER8949

Spot spraying
Use adjuvants in accordance with label as required.
Use lower rate on young bushes.

Spray to wet all foliage. Do not spray during hot, dry conditions.
GlyphosateRoundup Power Max®
540 g/L



470 - 660 mL/L of
Water



Non agricultural areas (around buildings, commercial and industrial areas, domestic and public service areas, rights-of-ways)

Apply as a thorough foliage spray when bushes are in full leaf and actively growing

Do not apply to drought stressed plants.
Triclopyr, Picloram**Conqueror
(300 g/L, 100 g/L)
Foliar spray
500 mL/ 100 L of water
Agricultural non-crop areas, commercial and industrial areas, fence lines, forestry, pastures and rights-of-way.

Use on plants less than 2 m tall.

Apply when bushes have good leaf cover, growth and no leaf fall.
Triclopyr, Picloram**, AminopyralidGrazon Extra

(300 g/L, 100 g/L, 8 g/L.)

Foliar spray

500 mL/ 100L of water

Agricultural non-crop areas, commercial and industrial areas, fence lines, forestry, pastures and rights-of-way.

Use on plants Less than 2 m tall.

Apply when bushes have good leaf cover, growth and no leaf fall.
TriclopyrGarlon 600® (600 g/L)170 mL/ in 100L of waterAgricultural non-crop areas, commercial and industrial areas, fence lines, forestry, pastures and rights-of-way.

Use on plants Less than 2 m tall.

Apply when bushes have good leaf cover, growth and no leaf fall.
Metsulfuron-methyl, Associate, Brush-off

600 g/Kg

As per existing

Registrations or if weed not recorded on label:

10-15 g/100 L

Non cropping and bushland

In accordance with APVMA Permit PER8949

Spot spraying, knapsack

Metsulfuron-methyl + glyphosateVarious concentrationsAs per existing registrations or if weed not recorded on label: consistent with range of label ratesNon cropping and bushland in accordance with APVMA Permit PER8949


Spot spraying, knapsack


* These products are not registered for this application method in Tasmania and will not be mentioned on product labels, however Permit Number - PER9419 issued by the Australian Pesticides & Veterinary Medicines Authority has been issued for this specific use. If using this method and herbicide you will require a copy of this off-label permit.

** Note that Picloram remains active in the soil for extended periods and may leach into groundwater.

For further information on permit details visit the APVMA website at www.apvma.gov.au

Spotgun application

Stage of Growth
Herbicide
(active
ingredient)
Example of commercial product (concentration of active ingredient)
Application rate of commercial product
Withholding
period
Comments
HEXAZINONEVelpar L
250 g/L
Spotgun
4 mL/spot - 1 spot for each metre in height
Around agricultural buildings and in pasture situations.
1 spot for each metre in height

Applied into moist soil beneath the bush (refer label).

*
Note that Hexazinone remains active in the soil for extended periods and may leach within the soil and cause damage to other plants with roots in the vicinity.


Drill axe, Cut stump and Basal bark application

Stage of Growth
Herbicide
(active
ingredient)
Example of commercial product (concentration of active ingredient)
Application rate of commercial product
Withholding
period
Comments
Actively growing to matureGlyphosate
360 g/L (where product has an aquatic registration)
Weedmaster Duo
360 g/L
Roundup Biactive®
360 g/L
drill axe

2 ml undiluted per hole/cut

Non cropping and bushland
In accordance with APVMA Permit PER8949
Glyphosate
360 g/L (where product has an aquatic registration)
Weedmaster Duo
360 g/L
Roundup Biactive®
360 g/L
cut stump

1:5 - undiluted.

Non cropping and bushland
In accordance with APVMA Permit PER8949
Trees and shrubs generally undiluted for blackberry, bulbs and hard to kill weeds.
MatureTriclopyrGarlon 600® (600 g/L)Basal bark and

Cut stump

1:30 with diesel distillate

Agricultural non-crop areas, commercial and industrial areas, forests, pastures and rights-of-way.
Basal bark method: Plants with stems up to 5 cm basal diameter.
Cut stump method: Plants up to and in excess of basal bark size. Apply immediately after cut is made.
Triclopyr
240 g/L,
Picloram ** 120 g/L.
AccessBasal bark and

Cut stump

1 litre per 60 litres diesel distillate

Agricultural non-crop areas, commercial and industrial areas, forests, pastures and rights-of-way.
Basal bark method: plants with stems up to 5 cm basal diameter.
Cut stump plants up to and in excess of basal bark size. Apply immediately after cut is made.

* These products are not registered for this application method in Tasmania and will not be mentioned on product labels, however Permit Number - PER9419 issued by the Australian Pesticides & Veterinary Medicines Authority has been issued for this specific use. If using this method and herbicide you will require a copy of this off-label permit.

**
Note that Picloram remains active in the soil for extended periods and may leach into groundwater.

For further information on permit details visit the APVMA website at www.apvma.gov.au

    Important Disclaimer
    To the extent permitted by law, the Tasmanian Department of Primary Industries, Parks, Water and Environment (including its employees and consultants) excludes all liability to any person for any consequences, including but not limited to all losses, damages, costs, expenses and any other compensation, arising directly or indirectly from using information or material (in part or in whole) contained on this website.
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