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Triasulfuron 750 WG


Product:

APVMA Code :59543

Active Constituent(s): 750g/kg triasulfuron
Registered For:

 

 Commercial use

 Domestic use

Overview: For pre-plant control of annual ryegrass, paradoxa grass and certain broadleaf weeds in wheat and for post-emergent control of wild radish in wheat, oats and barley.

Chemical Group sulfonylurea

Documents:

 MSDS (293.8 KB)

 Label (726.5 KB)


General Instructions

 

Ospray Triasulfuron 750WG Herbicide is a water dispersible granular, herbicide for the pre-plant, incorporated by sowing, control of annual ryegrass, paradoxa grass and certain broadleaf weeds in wheat, and for post-emergent control of wild radish in wheat, oats and barley.

 

Crops other than wheat, barley, oats, triticale and cereal rye can be very sensitive to low soil concentrations of Ospray Triasulfuron 750WG Herbicide, thus prior to using the product, careful consideration should be given to crop rotation plans.

 

Mixing

 

Ospray Triasulfuron 750WG Herbicide is a water dispersible granular herbicide which mixes readily with water and is applied as a spray.

- Partly fill the spray tank with water

- Start the agitation

- Add the correct amount of product to the spray tank with the agitation system running

- Continue agitation while topping up the tank with water and while spraying.

- Use the spray mix within 24 hours of preparation.

 

Application

 

Ground Application

Apply by boom spray, applying 30 to 100L of water per hectare.

Avoid overlapping of boom runs.

 

Aerial application

Always spray in a cross wind of less than 5 knots. Ensure good spray coverage is obtained. Apply 20 to 40 litres per hectare.

 

Sprayer Cleanup

When the sprayer is being used to spray cereal crops, rinse the sprayer thoroughly with water. Where the sprayer is being used to spray crops other than cereals:

1. Drain tank and rinse tank and spray boom with clean water for at least 10 minutes.

2. Fill the tank with clean water and add to it 300mL of household chlorine bleach (containing 4% chlorine) per 100L of water. Rinse hoses and boom and leave in tank for 15 minutes whilst agitating. Drain through nozzle.

3. Repeat step 2 and then rinse thoroughly with clean water to remove all traces of chlorine bleach.

4. Nozzles and filters should be cleaned separately.

5. Dispose of all water used for cleaning.

 

Compatibility

When using a tank mix of Ospray Triasulfuron 750WG Herbicide and Spray Seed*, add Ospray Triasulfuron 750WG, with constant agitation, to approximately half the total volume of water to be used.

 

Ensure that the Ospray Triasulfuron 750WG is fully dispersed.

 

Add the Spray.Seed*, fill the spray tank to full volume with water and mix thoroughly.

 

Apply tank mix immediately, under constant agitation.

 

Ospray Triasulfuron 750WG Herbicide is compatible with Metolachlor 720, Tri-allate, Spray Seed*, Glyphosate, sodium molybdate, zinc sulphate, manganese sulphate, copper sulphate, 2,4-D Amine, Metsulfuron-methyl, chlorpyrifos, permethrin, bromoxynil and trifluralin.

 

Crop Rotation Guidelines (Pre-emergent Application)

Where the product is applied at the rate of 30-35g/ha:

Unless otherwise specifi ed (see table below) wheat, barley, oats, triticale and cereal rye can be planted the following season without restrictions.

 

For other specified crops Ospray Triasulfuron 750WG treated area may be replanted after the interval indicated in the table below. These recommendations are made on the assumption that Ospray Triasulfuron 750WG is applied to a wheat crop that reaches maturity in the season of application.

 

Where the product is applied at 10-15g/ha plus - 0.83L/ha of Trifluralin 480 Herbicide

Where the pH is less than 7.5 the following crops can be replanted from 9 months after application providing 300mm of rainfall has been recorded; field peas, canola, chickpeas, medics, clover, lucerne, safflower, lupins, cereal rye, barley, oats, wheat, triticale. Where rainfall is less than 300mm for this period further advice should be sought from Ospray Pty Ltd.

Where pH is above 7.5 the following crops can be replanted 9 months after the application of Ospray Triasulfuron 750WG Herbicide - cereal rye, wheat, oats, barley, triticale. Where the pH is above 7.5 the following crops can be re-planted 12 months after application providing 350 mm of rainfall has been recorded: Field peas, canola, chickpeas, medics, clover, lucerne, safflower, lupins. Where less than 350mm of rain has fallen between application and sowing of the crop further advice should be sought from Ospray Pty Ltd.

View Document

 

Crop Rotation Guidelines (Post-emergent Application)

For all other crops a replanting interval of 24 months has to be observed.

These recommendations are made on the assumption that Ospray Triasulfuron 750WG is applied to a wheat crop that reaches maturity in the season of application.

Where Ospray Triasulfuron 750WG is used on soil types with pH greater than 8 (1:5 soil: water suspension method), further advice should be sought from Ospray Pty Ltd regarding crop rotation guidelines, except for barley, cereal rye, oats, triticale and wheat.

 

View Document

 

Crop Rotation Guidelines (Tank Mixture of Ospray Triasulfuron 750WG and Terbutryn)

The following crops can be planted after an application of Ospray Triasulfuron 750WG and Terbutryn.

 

In areas where pH is less than 7.5 - 9 months after an application: barley, cereal rye, chickpeas, faba beans, field peas, lupins, medics, oats, canola, safflower, subclover, triticale, wheat.

 

In areas where pH is greater than 7.5 - 9 months after an application: barley, cereal rye, oats, triticale, wheat.

 

14 months after an application: cotton, maize, sorghum, soybeans, sunflowers. Where residual herbicides are applied following an application, the crop rotational guidelines for these products must be followed.

 

22 months after an application: chickpeas, faba beans, field peas, lupins, medics, canola, safflower, subclover. For all other crops advice should be sought from Ospray Pty Ltd.

 

Restraints

 

POST EMERGENT APPLICATION

DO NOT apply to crops undersown with legumes.

 

DO NOT spray when very dry conditions prevail.

 

DO NOT spray under dry frosty conditions.

 

DO NOT use if another Group B herbicide (ALS Inhibitor) has been used during the current season.

 

DO NOT apply to paddocks where there is a high risk of weeds resistant to Group B Herbicides.

 

Apply no more than two Group B herbicides in any four-year period on the same paddock.

 

If RAIN FALLS within 6 hours of application, the effect could be diminished.

 

PRE-EMERGENT APPLICATION

DO NOT apply to crops undersown with legumes.

 

DO NOT use if another Group B herbicide (ALS Inhibitor) has been used during the current season.

 

DO NOT apply to paddocks where there is a high risk of weeds resistant to Group B Herbicides.

 

Apply no more than two Group B herbicides in any four-year period on the same paddock.

 

Resistance Warning

 

Ospray Triasulfuron 750WG Herbicide is a member of the Sulfonylurea group of herbicides. The product has the inhibitors of acetolactate synthase mode of action. For weed resistance management Ospray Triasulfuron 750WG Herbicide is a group B Herbicide.

 

Some naturally-occurring weed biotypes resistant to Ospray Triasulfuron 750WG Herbicide and other Group B 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 individuals will not be controlled by Ospray Triasulfuron 750WG Herbicide or any other Group B herbicides.

 

DO NOT rely exclusively on Ospray Triasulfuron 750WG Herbicide for weed control. Use as a part of an integrated weed management program involving herbicides with other modes of action and non-chemical means of control. Avcare resistance management strategies are available from your local agricultural chemical supplier.

 

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 Ospray Triasulfuron 750WG Herbicide to control resistant weeds.

 

Advice as to strategies and alternative treatments that can be used should be obtained from your local supplier, consultant, local Department of Agriculture, Primary Industries Department or and Ospray Pty Ltd representative.

 

Protection of wildlife, fish, crustaceans and environment

DO NOT contaminate streams, rivers or waterways with the chemical, or used containers.

 

Protection of crop, native and other non-target plants

DO NOT apply on or near shrubs, trees, lawns or crops other than wheat, oats and barley.

 

DO NOT drain or flush equipment on or near desirable trees or other plants, where their roots may extend or in situations where by movements of soil, or seepage, absorption of the herbicide may occur.

 

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.

 

DO NOT allow spray to drift onto adjacent crops and non-target desirable plants.

 

DO NOT allow spray to drift onto adjacent fallow land.

 

Storage

Keep out of reach of children.

Store in the closed, original container in a cool, well-ventilated area. Do not store for prolonged periods in direct sunlight.

 

Disposal

Triple 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 the containers below 500mm 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.

 

Precautions

Some crop yellowing or crop retardation may occur where stress factors such as water logging, drought, excessive soil acidity or alkalinity, nutrient deficiency or trace element deficiency disease - rhizoctonia, Take All, cereal cyst nematodes, or soil insects are present or occur following application.

 

Special care should be taken with regard to the application of Ospray Triasulfuron 750WG Herbicide to durum wheats as these may be more sensitive where the above stresses are present. In these situations crop recovery will be rapid provided stress factors do not continue exerting a negative effect on the crops growth.

Crop retardation may also occur in some instances where considerable late summer/early autumn weed growth occurs. Weeds such as goosefoot Chenopodium spp can release herbicidally active compounds into the soil.

 

Re-entry Period

DO NOT enter treated area without protective clothing until spray has dried.

 

Product details last updated on 02 Jul 2010

 

DISCLAIMER: This is not the TRIASULFURON 750 WG HERBICIDE by OSPRAY 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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