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Triclopyr 600


APVMA Code :59806

Active Constituent(s):

600g/L triclopyr

(present as the butoxyethyl ester)

Registered For:


 Commercial use

 Domestic use

Overview: For the control of a range of woody and melons.

 SDS (294.6 KB)

 Label (96.5 KB)

General Instructions





Ospray Triclopyr 600 is compatible with the following products: Lontrel1 Herbicide, Starane1 200 Herbicide, Glyphosate 450 Herbicide, Glyphosate 490 Herbicide, Touchdown Broadacre, 2,4-D amine or 2,4-D ester, Chlorpyifos 500 Insecticide, When mixing with Glyphosate 450 in fallow, refer to the Glyphosate 450 label for use rate and adjuvants recommended. DO NOT use Uptake1 Spraying Oil or D-C-Trate Crop Oil.



Ospray Triclopyr 600 is compatible with: Starane1 200 Herbicide and atrazine (500 g/L flowable product only) PVC gloves are not recommended for Ospray Triclopyr 600 Herbcide. Therefore, when tank mixing with products that need to be handled with PVC gloves, workers should wear nitrile gloves.


Minimum Recropping Periods

Before using Ospray Triclopyr 600 in tank mixes with other herbicides, check the plant-back information on all product labels. The time between spraying and planting will be determined by the product with the longest plant-back period.


Observe the following recropping periods for Ospray Triclopyr 600:

  • wheat, barley, sorghum, maize 7 days
  • chickpeas, soybeans, sunflowers 7 days
  • cotton 14 days




- Half fill the spray unit with water and add the required amount of Ospray Triclopyr 600. Add the remaining water with the agitator running. If required, then add crop oils or wetters (surfactants). Maintain mechanical or by-pass agitation in the spray tank during spraying. Only mix sufficient solution for immediate daily use and avoid storing.


- Basal Bark and Cut Stump Application: Quarter fill the spray unit or mixing container with diesel and add the required amount of Ospray Triclopyr 600. Add the remaining diesel and shake or agitate thoroughly to mix the contents. Periodically shake or agitate to stop product settling out. Only mix sufficient solution for immediate daily use and avoid storing.





Weeds need to be actively growing for herbicides to have optimum effect. Delay treatment until all regrowth has had time to grow to one metre high in situations which have been bulldozed, slashed, burnt, ploughed or areas have a previous chemical treatment.


A. High Volume Spraying:

- Thorough coverage of foliage and stems to the point of runoff is essential, however, avoid excess spraying which is wasteful of chemical.


Hand Gun:

- Apply the recommended mix to give full coverage of leaves and stems through a No. 6 to 8 tip at 700 to 1500 kPa.

- A spray volume of 3,000 to 4,000 L per infested hectare (30 to 40 L/100 m2) should be used on the weed infestation.



- Used for smaller infestations, where penetration of the canopy is not essential.

- A spray volume of 3 to 4 L/10 m2 of infested area should be used.


B. Aerial Application

- Apply in 100 to 200 L water/ha. Use a calibrated aircraft to apply in half overlap passes. Nozzle configurations should produce droplets of not less than 250 to 350 micron diameter (e.g. D8/45).

- The potential for damage from drift can be greatly reduced by avoiding unsuitable spraying conditions and using spray pressure and nozzles to minimise the production of small droplets.

- DO NOT spray when wind exceeds 10 km/hr and/or air temperature reaches 30C.

- Human flagging is not authorised unless protected by engineering controls such as vehicles with cabs.


C. Controlled Droplet Application (C.D.A.)

- Results similar to high volume spraying can be obtained using Micron Herbi or similar equipment. Select a nozzle to give a flow rate of 2 mL/sec and sweeping action of approximately 1 m/sec to ensure a droplet density of 20/cm2. Use a marking agent as recommended by the equipment manufacturers, to check spray coverage. Also, consult directions provided with C.D.A. unit.


D. Low Volume High Concentrate Application Techniques

- Good control will be achieved, similar to high volume application, where bush size enables good coverage of the bush. Use a marking agent, as recommended by the equipment manufacturers, to check spray coverage.

- Gas powered gun: Apply 50 mL shots to obtain uniform coverage of 4 to 5 m2 of surface area of bush. This relates to 20 droplets/ cm2 of leaf surface.

- Sprinkler sprayer: This technique involves using a micro sprinkler which is connected to a hollow fibre glass rod attached to a pressure knapsack sprayer. Use at low pressures (50 to 200 kPa) and apply with a slow sweeping action over the top of the plants ensuring even coverage on the leaves.


E. Basal Bark and Cut Stump Treatment

Mix Ospray Triclopyr 600 in diesel. The use of diesel as a herbicide carrier may affect the rubber seals in some sprayers. To avoid this, use sprayers which use Viton1 seals and fittings.

When using Ospray Triclopyr 600 Herbicide with diesel, nitrile gloves should be worn instead of rubber gloves.


Basal Bark Method:

- DO NOT apply to wet stems as this can repel the diesel mixture.

- Apply only with hand-directed equipment such as a pressure sprayer or a paint brush.

- Spray equipment should be used at low pressures, up to 200 kPa, to avoid excessive splashing or drift.

- Species with old, rough bark require more thorough wetting than smooth barked species.

- Liberally spray or paint the bark around the stem from ground level up to 30 cm high, wetting thoroughly to the point of runoff (unless otherwise stated).


Cut Stump Method:

- Stems should be cut less than 15 cm above the ground.

- Immediately apply Ospray Triclopyr 600/diesel mixture liberally to the freshly cut stump by spray or painting the cut surface and sides of the stem.



A. Boom Application

- Application of Ospray Triclopyr 600 in a minimum spray volume of 50 L/ha is recommended. Flat fan nozzles are recommended, using pressures in the range of 200-300 kPa. Boom


Cleaning Spray Equipment





- After using Ospray Triclopyr 600, empty the spray unit completely and drain the whole system. Thoroughly wash inside the spray unit using a pressure hose. Drain the spray unit and clean any filters in the tank, pump, lines, hoses and nozzles.

- After cleaning the spray unit as above, quarter fill with clean water and circulate through the pump, lines, hoses and nozzles. Drain and repeat the rinsing procedure twice.



- Before spraying cotton and other sensitive crops with equipment that has been used to apply Ospray Triclopyr 600, see PROTECTION OF CROPS, NATIVE AND OTHER NON-TARGET PLANTS section.

- Wash the tank and rinse the system as above. Then quarter fill the tank and add an alkali detergent (e.g. liquid SURF, OMO, DRIVE at 500 mL/100 L of water or the powder equivalent at 500 g/100 L of water) and circulate throughout the system for at least 15 minutes.

- Drain the whole system. Remove filters and nozzles and clean them separately. Finally flush the system with clean water and allow to drain.

Rinse water should be discharged onto a designated disposal area or, if this is unavailable, onto unused land away from desirable plants and water courses.





- After using Ospray Triclopyr 600, empty the spray unit completely and drain the whole system. Thoroughly wash inside the spray unit using a pressure hose. Drain the spray unit and clean any filters in the tank, pump, lines, hoses and nozzles.

- On completion of spraying, use a degreaser such as Caltex Kwik-D-Grease to remove traces of diesel from the sprayer. Rinse tank and spray through the nozzles with water to remove degreaser



- After the above, quarter fill the tank with clean water and add an alkali detergent (e.g. liquid SURF, OMO, OMOMATIC, DRIVE at 50 mL/10 L of water or the powder equivalent at 50 g/10 L of water). Shake or operate spray to circulate the washing solution throughout the sprayer and spray the solution through the nozzle. Rinse well with clean water to remove detergent.

- To clean brushes and container, spray liberally with degreaser. Hose off thoroughly with clean water and repeat using detergents (see above).

- DO NOT use this equipment for any other purpose.




DO NOT apply to weeds which may be stressed (not actively growing) due to prolonged periods of extreme cold, moisture stress (water-logged or drought affected), poor nutrition, presence of disease, or previous herbicide treatment as reduced levels of control may result.


DO NOT spray if rain is likely within one (1) hour or if foliage is wet from rain and dew. However, when tankmixed with Glyphosate 450, this time extends to six (6) hours.


DO NOT burn off, cut or clear blackberry or other woody weeds for six (6) months after spraying.


Resistance Warning


Ospray Triclopyr 600 Herbicide is a member of the pyridines group of herbicides. The product has the disrupters of plant cell growth mode of action. For weed resistance management, the product is a Group I herbicide. Some naturally-occurring weed biotypes resistant to the product and other Group I herbicides may exist through normal genetic variability in any weed population. The resistant individuals can eventually dominate the weed population if these herbicides are used repeatedly. These resistant weeds will not be controlled by this product or other Group I herbicides.

Since the occurrence of resistant weeds is difficult to detect prior to use, Ospray Pty Ltd accepts no liability for any losses that may result from the failure of this product to control resistant weeds.


Protection of wildlife, fish, crustaceans and environment

This product is highly toxic to fish and other aquatic organisms. DO NOT contaminate streams, rivers or waterways with the chemical or used containers.


Protection of crop, native and other non-target plants

DO NOT allow physical spray drift onto waterways, native vegetation and susceptible crops. When using Ospray Triclopyr 600 and Glyphosate 450 by aerial application in fallow situations, observance of a buffer zone of 150 metres to protect native tree species is required.


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.


Crops susceptible to Ospray Triclopyr 600 include, but are not limited to: peas, lupins, lucerne, navy beans, soybeans and other legumes; cotton, fruit, hops, ornamentals, shade trees and Pinus spp., potatoes, safflower, sugarbeet, sunflower, tobacco, tomatoes, vegetables and vines.


Ospray Triclopyr 600 is damaging to susceptible crops during both growing and dormant periods. Grasses are normally unaffected and establish quickly after treatment.


Safety Directions


Poisonous if swallowed. May irritate the eyes and skin. Avoid contact with eyes and skin. When opening the container, preparing the spray and using the prepared spray, wear cotton overalls buttoned to the neck and wrist, a washable hat and elbow length rubber gloves.


Wash hands after use. After each days use wash gloves and contaminated clothing.



Store in closed original container in a cool, well-ventilated area. DO NOT store for prolonged periods in direct sunlight.

DO NOT store near food, feedstuffs, fertilisers or seed.



DO NOT re-use containers. Triple rinse or preferably pressure rinse containers before disposal. Add rinsings to spray tank. DO NOT dispose of undiluted chemicals on site. If recycling, replace cap and return clean containers to recycler or designated collection point.


If not recycling, break, crush, or puncture and bury empty containers in a local authority landfill. If no landfill is available, bury containers below 500 mm in a disposal pit specifically marked and set up for this purpose clear of waterways, desirable vegetation and tree roots. Empty containers and product should not be burnt.


For refillable containers: Empty contents fully into application equipment. Close all valves and return to point of supply for refill or storage.



Wear protective equipment (see SAFETY DIRECTIONS). Apply absorbent material such as earth, sand, clay granules or cat litter to the spill. Sweep up material for disposal when absorption is completed and contain in a refuse vessel for disposal (see STORAGE AND DISPOSAL section). If necessary, wash the spill area with an alkali detergent and water and absorb the wash liquid as above for disposal.


Product details last updated on 25 Jun 2010


DISCLAIMER: This is not the TRICLOPYR 600 HERBICIDE label. To view or print the label for this product, click the "MSDS/Label" tab at the top of this page. Always follow label instructions.


For specialist advice in an EMERGENCY only phone 1800 033 111, TOLL-FREE, ALL-HOURS, NATIONWIDE

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