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Scrubber 600

High-strength, selective and systemic herbicide, designed for the control of woody weeds, invasive brush, and broadleaf weeds in pasture, forestry, and non-crop areas.

Acts systemically through foliage and bark to provide deep and effective control, including regrowth suppression.

Scrubber 600

Target

 Thistle, Capeweed, Common Pickly Pear, Smooth Tree Pear, St. Johns Wort, Blackberry, Brigalow, Lantana etc.

Product Type

 Herbicide

Active Ingredient

 600g/L Triclopyr

Group

 I

Pack Size

 5L, 20L

APVMA Registration #

 90470
Search APVMA number at APVMA PubCRIS.

Profile

  • First marketed in 1979
  • Triclopyr is absorbed mainly through the foliage and roots, then moves both upward and downward within the plant via the xylem and phloem
  • It accumulates in actively growing (meristematic) tissues
  • Acting as a synthetic auxin, it disrupts normal growth patterns by triggering uncontrolled cell division and elongation, ultimately leading to plant death

Benefits

  • Highly effective on woody broadleaf weeds: Controls blackberry, lantana, gorse, broom, and other invasive shrubs in pastures and non-crop areas.
  • Selective to grasses: Removes woody and broadleaf weeds without damaging pasture grasses.
  • Multiple application methods (foliar, basal bark, cut-stump): Provides flexibility for controlling different weed sizes and situations.

Toxicity

  • Acute oral Mammalian Toxicity (LD50, mg/kg) - rats (female) 630, rats (male) 729
Herbicide to control woody weeds, invasive brush, and broadleaf weeds
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APPLICATION GUIDE

Scrubber 600 is registered for use in commercial and industrial situations, rights of way, pastures, and forests. Select the application method below that matches your equipment and situation. Each panel provides registered rates, state restrictions, and critical comments drawn directly from the product label.

Restraints — read before applying:

  • DO NOT spray blackberry suffering from drought stress.
  • DO NOT burn off, cut or clear blackberry or other woody weeds for at least six months after spraying.
  • In Tasmania for blackberry, DO NOT treat bushes carrying mature fruit or near mature fruit.
  • DO NOT spray within 1 km of susceptible crops (applies to all foliar methods).
  • DO NOT apply under weather conditions, or from spraying equipment, that may cause spray to drift onto nearby susceptible plants, crops, cropping lands, or pastures.
  • FOR NSW ONLY:
    WITH THE EXCEPTION OF REGROWTH LESS THAN 5 YEARS OLD AND UNDER 3 METRES TALL, THE CLEARING OF MORE THAN 5 HECTARES OF TREES BY AERIAL, GROUND OR SPOTGUN APPLICATION IN NSW IS PROHIBITED, UNLESS SPECIFICALLY AUTHORISED BY PERMIT. THIS RESTRICTION DOES NOT APPLY TO WOODY WEEDS.

Apply Scrubber 600 by high volume spraying for thorough foliar coverage of blackberry, gorse, prickly pear, St. John's Wort, and a range of other broadleaf and woody weeds. Situation: commercial and industrial situations, rights of way, pastures, and forests. Rates are millilitres of Scrubber 600 per 100 L water (general) or per 15 L water (knapsack). Apply when weeds are actively growing.

Commercial and industrial situations, rights of way, pastures and forests

Weed Controlled State General Rate / 100L Water Knapsack Rate / 15L Water Critical Comments
Blackberry QLD, NSW, VIC, SA & WA only 170ml 25ml Apply from late spring to early autumn when bushes are actively growing.
Best results are achieved from applications made between January and April.
One application may give satisfactory control but subsequent re-growth and seedlings should be re-sprayed after hardening off.
Do not use this product under extremely dry conditions as considerable re-growth may occur.
Thorough coverage is essential; however, avoid excess spraying which is wasteful of chemical.
Where herbicides other than Scrubber 600 or Grazon DS have been used, allow two seasons re-growth to occur before re-spraying with Scrubber 600 or Grazon DS.
TAS only 170ml 15ml or 25ml Apply from petal fall to leaf fall, except when bushes are carrying mature fruit.
Application from mid-fruit stage to leaf fall may give improved control.
Use the higher rate on large bushes when complete wetting is difficult.
Seeding Camphor Laurel (up to 3m tall),
English Broom		 All States 170ml 25ml Thoroughly spray foliage when growth is active.
Green Cestrum, Brooms QLD, NSW & VIC only 170ml 25ml Thoroughly spray foliage when growth is active.
Eucalyptus (seedlings and regrowth from small lignotubers), Banksia, Angophora All States 400ml or 560ml 60ml or 90ml Ensure thorough coverage of foliage. Thoroughly spray foliage when growth is active.
Apply the high rate in VIC, TAS, Southern NSW, and where difficult-to-kill species are present.
NSW only: Apply to actively growing re-growth less than 5 years old and under 3m tall.

Thoroughly spray foliage when growth is active.
Use the lower rate on young seedlings and the high rate on plants more than 2m tall.
NSW only: Apply to actively growing re-growth less than 5 years old and under 3m tall.
Wattles (including Silver and Black Wattle), Groundsel Bush 160ml or 320ml 25ml or 50ml
Brigalow QLD & NSW only 170ml 25ml Overall high-volume spray in 1000L of water/ha. See also Air Blast Spraying.
Gorse All States 170ml or 340ml 25ml or 50ml Apply from spring to mid-summer.
Use the high rate on old, hard plants.
Add a non-ionic wetting agent at a rate of 125ml/100L.
Do not burn bushes for at least 6 months following treatment.
Re-treatment of re-growth may be necessary.
Common Prickly Pear, Smooth Tree Pear All States 3L 450ml Apply as a thorough foliar spray.
Common Prickly Pear, Tiger Pear, Smooth Tree Pear All States 1L / 75L diesel 450ml Mix with diesel only and apply as a thorough foliar spray.
St. John's Wort NSW, VIC & TAS only 170ml 25ml Apply as a thorough foliar spray.
Fennel, African Boxthorn, Horehound, Broom TAS only 170ml 25ml Apply as a thorough foliar spray.
Saffron Thistle (up to bud stage), Capeweed TAS only 80ml 12ml Apply as a thorough foliar spray.

Apply Scrubber 600 by high volume spraying following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Apply Scrubber 600 by mistblower or air blast sprayer for eucalyptus, blackberry, and brigalow in commercial and industrial situations, rights of way, pastures, and forests. This method is restricted to non-urban areas. DO NOT spray within 1 km of susceptible crops. Apply when weeds are actively growing.

Commercial and industrial situations (non-urban areas), rights of way, pastures and forests

Weed Controlled State Rate Critical Comments
Eucalyptus All States 320ml / 10L water Apply during active growth to give full coverage of foliage and stems.
NSW only: Apply only to actively growing regrowth which is less than 5 years old and under 3m tall.
Blackberry All States 320ml / 10L water Apply during active growth to give full coverage of foliage and stems.
Brigalow QLD & NSW only 320ml / 10L water Apply during active growth to give full coverage of foliage and stems.

Apply Scrubber 600 by air blast spraying following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Scrubber 600 may be applied by aircraft for the control of blackberry in commercial and industrial situations, rights of way, pastures, and forests. Helicopter only in NSW, VIC, TAS, SA, and WA. Helicopter or fixed wing in QLD only. Human flagging is not authorised unless protected by engineering controls such as vehicles with cabs.

Commercial and industrial situations (non-urban areas), rights of way, pastures and forests

Weed Controlled State Rate Critical Comments
Blackberry All States 4.8L in 100–200L water/ha Spray with a properly calibrated helicopter using the half-overlap opposite-pass technique.
Nozzle combination should not be less than DW45.
Spraying in wind in excess of 10 km/hr and temperature above 25°C is not recommended.

Apply Scrubber 600 by aerial application following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Apply Scrubber 600 by controlled droplet application (CDA) for the control of blackberry in commercial and industrial situations, rights of way, pastures, and forests. Results similar to high volume spraying can be achieved with properly set up CDA equipment such as Micron Herbi 1 or similar.

Commercial and industrial situations, rights of way, pastures and forests

Weed Controlled State Rate Critical Comments
Blackberry All States 170ml / 1L water Results similar to high volume spraying can be obtained using Micron Herbi 1 or similar equipment.
Select a nozzle to give a flow rate of 2 ml/sec and pass speed of approximately 1 m/sec, and ensure a droplet density of 20/cm².
A marking agent should be used to check spray coverage.
Consult directions provided with CDA equipment.

Apply Scrubber 600 by controlled droplet application following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Apply Scrubber 600 by gas gun or sprinkler sprayer at low volume high concentrate rates for blackberry and eucalyptus seedlings in commercial and industrial situations, rights of way, pastures, and forests. Good control similar to high volume application is achievable where bush size enables good coverage of the entire bush. Use of a marking agent is recommended to check spray coverage.

Commercial and industrial situations, rights of way, pastures and forests

Weed Controlled State Rate Critical Comments
Blackberry All States 1L / 35L water Good control will be achieved similar to high volume application where bush size enables good coverage of entire bush.
Use of a marking agent is recommended to check spray coverage.

NSW only (Eucalyptus): Apply only to actively growing regrowth which is less than 5 years old and under 3m tall.
Eucalyptus seedlings All States 1L / 25L water

Apply Scrubber 600 by low volume high concentrate technique following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Apply Scrubber 600 by boom sprayer for the control of paddy melon and Afghan, bitter, or camel melon. Situation: fallow, stubble, and firebreaks. Rates are per hectare mixed with DC-Tron crop oil. DO NOT spray stressed plants.

Fallow, stubble, firebreaks

Weed Controlled State Rate / ha Critical Comments
Paddy Melon (Cucumis myriocarpus) NSW, SA, VIC, WA & QLD only 80ml or 160ml
+ 1% v/v DC-Tron crop oil		 Use the higher rate on plants greater than 20cm in diameter.
Do not spray stressed plants.
Note: 1% v/v = 1L DC-Tron per 100L of water.
Afghan, Bitter or Camel Melon (Citrullus lanatus) NSW, SA, VIC, WA & QLD only 120ml or 160ml
+ 1% v/v DC-Tron crop oil

Apply Scrubber 600 by boom sprayer following the Application Guide table above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

Basal bark and cut stump treatment allows Scrubber 600 to be applied in diesel distillate directly to the bark of stems or to freshly cut stumps to control a wide range of woody weeds in commercial and industrial situations, rights of way, pastures, and forests. This method can be used throughout the year and is particularly suited to larger trees and situations where foliar spraying is impractical.

Always use diesel distillate as the carrier — do not use water.
When using Scrubber 600 with diesel, wear nitrile gloves instead of rubber gloves.

  • Use low pressure — up to 200 kPa maximum.
  • Minimise spray drift from high volume application by using low pressure and nozzles that do not give a fine droplet size.
  • For basal bark treatment, spray or paint bark around the stem to 30 cm above ground level, wetting thoroughly.
  • For cut stump treatment, apply to freshly cut stumps immediately after cutting. Best results are obtained when stems are cut to within 15 cm of ground level.
  • Delay treatment until all regrowth has had time to emerge on bulldozed or ploughed areas.
  • After use, clean equipment thoroughly and rinse several times before re-use. Discharge washings on non-crop, non-pasture land away from water supplies and homes.
  • Equipment used for application of this product should not be used for application of other materials to sensitive plants.

Commercial and industrial situations, rights of way, pastures and forests

Weed Controlled State Rate (Scrubber 600 : Diesel) Critical Comments
Australian Blackthorn All States 1:60 diesel distillate Basal Bark: For the treatment of suckers and seedlings up to 5cm basal diameter (up to 10cm for Tree of Heaven and Camphor Laurel). Spray or paint bark around stem to 30cm, wetting thoroughly. Old rough bark may require more thorough spraying than young smooth bark.
Cut Stump: Apply to freshly cut stumps of suckers and seedlings more than 5cm in basal diameter. Best results are obtained when stems are cut to within 15cm of ground level. Apply liberally by spraying or painting cut surface and side stems.
Do not treat Australian Blackthorn or Tree of Heaven during the dormant period.
Bitter Bark, Camphor Laurel QLD & NSW only
Broom TAS only 1:48 diesel distillate Basal Bark: For treatment of suckers up to 5cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Chinese Apple, Eucalyptus (except Dawson Gum), False Sandalwood, Green Wattle, Lantana, Needlewood, Paperbark, Tea Tree, Rubbervine, Silver Wattle, Tree of Heaven, Castor Oil All States 1:60 diesel distillate Basal Bark: For the treatment of suckers and seedlings up to 5cm basal diameter (up to 10cm for Tree of Heaven). Spray or paint bark around stem to 30cm, wetting thoroughly. Old rough bark may require more thorough spraying than young smooth bark.
Cut Stump: Apply to freshly cut stumps more than 5cm in basal diameter. Best results are obtained when stems are cut to within 15cm of ground level. Apply liberally by spraying or painting cut surface and side stems.
Do not treat Tree of Heaven during the dormant period.
Brown Salwood All States 1:120 diesel distillate Basal Bark: For treatment of suckers up to 5cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Prickly Acacia, Groundsel Bush All States Basal Bark: For treatment of suckers up to 10cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Treat from early summer rains to end of April when regrowth is apparent.
Sweet Briar, African Boxthorn All States 1:30 diesel distillate Basal Bark: For treatment of suckers up to 5cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Do not treat Sweet Briar or African Boxthorn during the dormant period.
Dawson Gum, Yellow Wood QLD only 1:30 diesel distillate Basal Bark: For treatment of suckers up to 5cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Olive SA only 1:30 diesel distillate Cut Stump: Apply immediately to freshly cut surface of stump.
Olive NSW only 1:14 diesel distillate Cut Stump: Cut stump as close to ground level as possible and immediately swab the cut surface.
Basal Bark: Apply mixture with low-pressure sprayer to the base of stems from ground level to 30cm high.
Privet All States 1:12 diesel distillate Basal Bark: For treatment of plants up to 10cm basal diameter, treat as above.
Cut Stump: Use cut stump treatment as above for larger plants.
Treatment may be carried out at any time of year.

Mixing reference — amounts of Scrubber 600 per volume of final spray mix

Weed Dilution Scrubber 600 per 5L mix Scrubber 600 per 15L mix Scrubber 600 per 100L mix Triclopyr concentration (g/L)
Privet 1:12 420ml 1.25L 8.3L 50g/L
Olive (NSW only) 1:14 360ml 1.1L 7.2L 43g/L
Sweet Briar, African Boxthorn, Dawson Gum, Yellow Wood, Olive (SA only) 1:30 170ml 500ml 3.3L 20g/L
Broom (TAS only) 1:46 105ml 315ml 2.1L 12.5g/L
Majority of species (incl. Eucalyptus, Wattle, Tea Tree, Rubbervine, Tree of Heaven — see directions for use table) 1:60 85ml 250ml 1.7L 10g/L
Brown Salwood, Prickly Acacia, Groundsel Bush 1:120 45ml 125ml 850ml 5g/L

Apply Scrubber 600 basal bark and cut stump treatments following the Application Guide tables above.
Always download and read the current product label before use and follow all regulatory and safety instructions.

What is Scrubber 600 and what is it used for?

Scrubber 600 is a 600g/L triclopyr herbicide registered for the control of various woody and broadleaf weeds as specified in the Directions for Use. It is used in commercial and industrial situations, rights of way, pastures, and forests across Australia. Registered weeds include blackberry, gorse, lantana, privet, camphor laurel, eucalyptus regrowth and seedlings, wattles, brigalow, prickly pear species, St. John's Wort, and many others. Multiple application methods are registered, including high volume spraying, air blast spraying, aerial application, CDA, low volume high concentrate, boom spraying, and basal bark and cut stump treatment.
Scrubber 600 is registered for the control of a wide range of woody and broadleaf weeds including:
  • Woody weeds: Blackberry, gorse, lantana, privet, camphor laurel, eucalyptus (regrowth and seedlings), wattles, brigalow, sweet briar, African boxthorn, rubbervine, tree of heaven, groundsel bush, prickly acacia, and many others
  • Prickly pear species: Common prickly pear, tiger pear, smooth tree pear
  • Broadleaf weeds: St. John's Wort, capeweed, saffron thistle (up to bud stage), horehound, fennel, broom species
  • Melon species (boom spraying, fallow/stubble/firebreaks): Paddy melon, Afghan, bitter and camel melon
State restrictions apply to several species. Refer to the Application Guide above for registered states and full rates.
Scrubber 600 is a Group I herbicide from the pyridines group. It has the disruptors of plant cell growth mode of action and is used for the control of various woody and broadleaf weeds as specified on the label.

For weed resistance management: some naturally occurring weed biotypes resistant to Group I herbicides may exist through normal genetic variability in any weed population. The resistant individuals can eventually dominate the weed population if Group I herbicides are used repeatedly. These resistant weeds will not be controlled by Scrubber 600 or other Group I herbicides.
Yes. Scrubber 600 is registered for basal bark and cut stump treatment of privet (all states, 1:12 dilution in diesel distillate), lantana (all states, 1:60 dilution), and camphor laurel (QLD and NSW only, 1:60 dilution). Each species uses a different dilution ratio — refer to the mixing reference table in the Basal Bark & Cut Stump panel of the Application Guide above. For basal bark treatment, spray or paint bark around the stem to 30cm above ground level, wetting thoroughly. For cut stump treatment, apply to freshly cut stumps immediately after cutting. Always use diesel distillate — not water — as the carrier. When using Scrubber 600 with diesel, wear nitrile gloves instead of rubber gloves.
No withholding period is required when Scrubber 600 is used as directed.
Yes. Scrubber 600 is damaging to vines, vegetables, cotton, tomatoes, ornamentals, and many other broadleaf plants during both growing and dormant periods. Grasses are normally unaffected and establish quickly after treatment. Do not allow spray drift onto susceptible crops such as cotton, tomatoes, vines, fruit, potatoes, vegetables, ornamentals, tobacco, lupins and other legumes, safflower, flowers, shade trees, and Pinus spp. Do not apply under weather conditions, or from spraying equipment, that may cause spray to drift onto nearby susceptible plants, crops, cropping lands, or pastures.
When opening the container, preparing spray, and using the prepared spray, wear:
  • Cotton overalls buttoned to the neck and wrists
  • A washable hat
  • Elbow-length rubber gloves
When mixing Scrubber 600 with diesel for basal bark or cut stump treatment, wear nitrile gloves instead of rubber gloves. PVC gloves are not recommended for Scrubber 600. Avoid contact with eyes and skin. Wash hands after use. After each day's use, wash gloves and contaminated clothing.
This product mixes easily with water. Pour the measured quantity of Scrubber 600 into a partially filled spray tank, then add the remainder of the water. Agitate thoroughly during filling, while spraying, and before re-commencing after any stoppage. Only mix sufficient chemical for each day's work. Re-mix after extended periods of settling. Refer to the High Volume Spraying panel in the Application Guide above for rates by weed species and state.
Scrubber 600 is poisonous if swallowed and may irritate the eyes and skin. If poisoning occurs, contact a doctor or the Poisons Information Centre — phone Australia 13 11 26. Do not induce vomiting. Avoid contact with eyes and skin. If product contacts skin, wash affected area immediately with soap and water.
Do not contaminate streams, rivers, watercourses, or water used for irrigation, drinking, or other domestic purposes with the chemical or used containers. This applies to the product and to used containers.
Additional safety information is listed in the Safety Data Sheet (SDS), which can be requested by clicking the Request SDS button on this page.
You can purchase this product from leading agricultural suppliers throughout Australia. If you are a grower and would like a distributor for larger quantities, send us a message on our contact us page requesting "Scrubber 600" distributors near you.

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