Product Details
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APVMA Code :61142
Active Constituent(s):
Registered For
Commercial Use Domestic Use

Overview Controls weeds in orchards, chickpeas, vineyards, asparagus, field lupins, TT-canola, berry fruits, gladioli, hops, faba beans, almonds (SA only), non-agricultural situations and other crops.
Chemical Group triazine
General Instructions SIMAZINE 500 is a pre-emergent herbicide which selectively controls certain broadleaf weeds and grasses in asparagus, chickpeas, berry fruits, citrus, faba beans, almonds (SA only) gladioli, hops, pome fruits, roses, vineyards and lupins. In non-agricultural and other crop areas applied at higher rates, it will provide long control of a wide range of weeds and grasses. Established perennial species are not satisfactorily controlled.
Since the product enters weeds mainly through their roots its effectiveness depends on rainfall or irrigation after application to move it down into the weed root zone. Duration and effectiveness of control depends on the amount of chemical applied, soil type, rainfall and particular weed species. When susceptible weeds start to appear uniformly the SIMAZINE 500 residue has probably dissipated. Wash sprayer thoroughly with clean water after use.

Integrated Weed Management Strategy For TT-Canola
The use of this product in TT-canola is subject to an Integrated Weed Management Strategy for the use of triazine herbicides in TT-canola. The Strategy encompasses:
- an Integrated Weed Management (IWM) strategy;
- the management of crop plant volunteers and outcrossing; and
- triazine herbicide residue management (agronomic and environment).
Compliance with registered label directions and adoption of the principles outlined in the Code will assist with implementation of crop management practices that minimise the development of herbicide resistance in treated weeds; reduce the levels of triazine residues in the environment; and manage volunteer plants and outcrossing. Copies of the Strategy are available from a Ospray representative. It is advised that consultation be undertaken with an appropriate agronomist, consultant or Departmental adviser prior to the use of SIMAZINE 500 on TT-canola.
To minimize herbicide resistance:
- Avoid dry sowing in heavily weed-infested paddocks. Wait for a weed germination after the opening rains in weedy paddocks. Use a pre-plant knockdown or cultivation. No weeds should be allowed to survive at this stage.
- Adapt the weed control program to the anticipated weed spectrum and pressure: Broadleaf Weeds and Ryegrass: use (simazine 500 g/L) or (atrazine 500 g/L) plus trifl uralin pre-emergence. A follow-up with a Group A herbicide (if ryegrass is susceptible) or atrazine 500 g/L may be necessary.
Broadleaf Weeds only: use atrazine 500 g/L post-emergence.
- DO NOT use atrazine 500 g/L or simazine 500 g/L if the area to be treated had a triazine herbicide applied to it last season
- Watch for escapes, especially in paddocks with a long history of Group C herbicide use.
- DO NOT use Group C herbicides in consecutive years.

Resistance Weed Reporting
Growers should collect plant or seed samples where weeds that are normally susceptible to atrazine and simazine may be resistant, get them tested and seek professional advice.
To avoid triazine carry-over:
On acid soils (pH less than 6.5) - The maximum rate of atrazine 500 g/L or simazine 500 g/L or a combination of the two products to be applied to the crop during the growing season is 4 L/ha.
On alkaline soils (pH greater than 6.5) - The maximum rate of atrazine 500 g/L or simazine 500 g/L or a combination of the two products to be applied to the crop during the growing season is 2 L/ha.
Post-emergence use - It is recommended that atrazine 500 g/L only be used, and at rates of 2 L/ha or less, on both acid or alkaline soils.

Settling may occur after storage for some weeks. Stir product or invert container several times before opening. Pour the fl owable into the spray vat through a strainer to remove any dry particles or fl akes, which can occasionally occur under hot storage conditions. Add the full quantity of SIMAZINE 500 SC to the partly-fi lled spray tank while agitating. Fill tank and agitate to ensure thorough mixing. Continue agitation while spraying. Agitate vigorously from the bottom if allowed to stand. Re-seal part-used container immediately.

DO NOT apply to TT-canola by aircraft. Apply only with a low boom sprayer with a 60 m buffer zone downwind of treated fi elds to natural or impounded lakes or dams, and a 20 m buffer zone for any well, sink hole, intermittent or perennial stream. Apply only to areas where run-off is unlikely to occur or where run-off may be captured by farm earthworks.
This product acts mainly by root absorption. Its effectiveness depends on the occurrence of rainfall or irrigation to move it down into the weed root zone. Suffi cient rain or irrigation to thoroughly wet the soil through the weed root zone should occur or be made immediately after application to provide appropriate weed control. Delay in activation of the product may result in some weed growth. In fl ood or furrow irrigation situations complete and continued activation of the product may not occur due to a thin band of dry soil on the surface during or after irrigation. Mechanical incorporation after application, using light harrows to incorporate the product into the soil not more than 4 cm deep is required to ensure the irrigation water activates the product.
Always apply the product to an even unridged seedbed.

SIMAZINE 500 is compatible with Diuron Flowable, Amitrol, TCA, Dalapon and Wetter 1000. It can be applied with glyphosate, paraquat, diquat or paraquat-diquat mixtures provided the mixture is agitated vigorously. If allowed to stand, agitate vigorously. When mixing with glyphosate add 2 kg/100 L crystalline ammonium sulphate to avoid antagonism. Avoid extremely cold water temperatures (2-5 degrees C) when mixing. The use of a buffering agent e.g. Spray Buff is recommended when mixing with alkaline waters (pH 8-12).

Resistance Warning Ospray SIMAZINE 500 Flowable Herbicide is a member of the Triazine group of herbicides and has the inhibitors of photosynthesis at photosystem II mode of action. For weed resistance management SIMAZINE 500 is a Group C Herbicide. Some naturally occurring weed biotypes resistant to SIMAZINE 500 and other Group C 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 SIMAZINE 500 or other Group C herbicides. Since the occurrence of resistant weeds is diffi cult to detect prior to use Ospray Pty. Ltd. accepts no liability for any losses that may result from the failure of SIMAZINE 500 to control resistant weeds.
Protection of wildlife, fish, crustaceans and environment DO NOT apply this product within 60 m of natural or impounded lakes or dams.
DO NOT use in channels or drains where roots of desirable plants may extend. Wash sprayer thoroughly with clean water after use.
DO NOT contaminate dams, waterways or drains with chemical or used containers. This product is very highly toxic to algae and aquatic macrophytes.
Protection of crop, native and other non-target plants DO NOT spray foliage of desirable plants, except lupins (WA only). DO NOT make more than two applications during any one year in asparagus, berry fruit, citrus, almonds, gladioli, hops, apples, pears, roses, vineyards and lupins.
DO NOT use near newly planted shrubs, young ornamentals, and species with shallow surface roots.
DO NOT plant crops other than those recommended on this label for at least nine months following treatments of this product at rates up to 4.5 L per hectare.
DO NOT apply under meteorological conditions or from spraying equipment which could be expected to cause spray drift onto nearby susceptible plants, adjacent crops, crop lands or pastures.
When rates exceed 4.5 L per hectare, plantings may not be possible for very long periods afterwards.
Avoid deep cultivation of orchards, vineyards, asparagus, roses, berry fruit and hops which may throw untreated soil over sprayed areas as this may seriously reduce weed control.
Heavy rain following application prior to emergence may cause damage to chickpeas.
Safety Directions Avoid contact with eyes and skin. DO NOT inhale spray mist. Wash hands after use.
FirstAid If poisoning occurs, contact a doctor or Poisons Information Centre. Phone Australia 131126.
Storage 20 L, 200 L
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.
1000 L
Store in the closed, original container in a cool, well-ventilated area. DO NOT store for prolonged periods in direct sunlight. Storage must be secure so that contents cannot be tampered with. All locks and/or seals must be in order. If locks or seals are broken prior to initial use then the integrity of this product cannot be assured. If this occurs Ospray Pty. Ltd. should be contacted immediately.
Disposal 20 L, 200 L
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 (contact drumMuster Collection agency or Local Council for collection sites). If not recycling, break, crush, or puncture and bury empty containers in a local authority landfi ll. If no landfi ll is available, bury the containers below 500 mm in a disposal pit specifi cally 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 refi ll or storage.
1000 L
This minibulk container is reusable and remains the property of Ospray Pty. Ltd. unless otherwise agreed in writing. DO NOT rinse empty container. Empty contents fully into application equipment. Close all valves and store as above. No other liquid, solid or pesticide product should be put into container. When empty, return to the point of supply or Ospray Pty. Ltd. for cleaning, relabelling and refilling.
Precautions Re-entry Period
DO NOT enter treated area without protective clothing until spray has dried.

Product details last updated on 25 Jun 2010

DISCLAIMER: This is not the SIMAZINE 500 HERBICIDE by CHEMINOVA 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.

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