Simazine Flowable 500
1 Trade nameManufacturerForm
AGROREG SIMAZINE 500 SC HERBICIDEAGROREG PTY LIMITEDSC
CHEMAG SIMAZINE 500 FLOWABLE HERBICIDEIMTRADE AUSTRALIA PTY LTDSC
CMS SIMAZINE 500 SC HERBICIDECMS TRADE PTY LTDSC
CROP CARE SIMAZINE FLOWABLE HERBICIDECROP CARE AUSTRALASIA PTY LTDSC
FARMOZ SIMAZINE 500 FLOWABLE HERBICIDEFARMOZ PTY LIMITEDSC
FLOWABLE GESATOP 500 SC LIQUID HERBICIDESYNGENTA CROP PROTECTION PTY LIMITEDSC
FLOWABLE GESATOP 600 SC LIQUID HERBICIDESYNGENTA CROP PROTECTION PTY LIMITEDSC
KENSO AGCARE SIMAZINE 500 SC HERBICIDEKENSO CORPORATION (M) SDN BHDSC
NUFARM FLOWABLE SIMAZINE LIQUID HERBICIDENUFARM AUSTRALIA LIMITEDSC
SIMAFLO HERBICIDEBAYER CROPSCIENCE PTY LTDSC
SIMANEX 500 SC HERBICIDEMAKHTESHIM-AGAN (AUSTRALIA) PTY LIMITEDSC
SIPCAM SIMAZINE 500 FLOWABLE HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDSC
SIPCAM SIMAZINE 600 FLOWABLE HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDSC
TRADELANDS SIMAZINE 500 FLOWABLE HERBICIDETRADELANDS PTY LTDSC

3 ACTIVE INGREDIENTS: Simazine 500 g/L as a liquid suspension.

4 CHEMICAL GROUP: C.

27 ENVIRONMENTAL FATE:

Half life in soil: 40 days at 20 degrees and 50% WHC in Mohlin soil.

Half life in water: days at pH5 and 35 C.

It has an EPA classification for soil mobility that ranges from

It has a leaching index of 5. (for comparison, trifluralin is 0-1 and chlorsulfuron is 25-30).

Ground water contamination

Accumulation in milk and tissues.

pH stability:

Photolysis rate:

Hydrolysis half life:

Biodegradation rate:

28 REGISTERED CROPS:

See HerbiGuide Species Solution tab.

29 REGISTERED WEEDS:

See HerbiGuide Species Solution tab.

30 REGULATION AND LEGAL:

UN number:

CAS numbers:

Hazchem code:

NOHSC classification:

Land transport:

Dangerous goods class:

Sea transport:

Proper shipping name:

Class:

Packaging group:

EPG:

31 PROPERTIES:

Empirical formula:

Water solubility: 5-6.2 mg/L at 25 C at pH ;

Oil solubility:

Octanol:Water ratio: LogPow = at 25 C at pH 5;

Soil organic carbon absorption coefficient (Koc): - 130 mL/g.

Vapour Pressure: 0.013 mPa (Piper 87 quotes 8.3 x 10-7 Pa = 6.23 x 10-9 mm Hg).

Dissociation constant: pKa

Melting point: C.

Boiling point: C.

Molecular weight:

Colour:

Odour:

Bulk density:

Specific gravity:

pH:

Flammability:

Shelf Life: >2 years.

(When Stored under Ideal Conditions)


Field Crop

Flowable concentrate.

4. Poison Schedule : Exempt from scheduling.

Non flammable,
8.Dangerous Goods Class : Non dangerous good.
10.Mixtures Compatibility :
Diuron Flowable Reglone (diquat)*

glyphosate* Spray.Seed (paraquat + diquat)*

Gramoxone (paraquat)* trifluralin

Hoegrass/Nugrass (diclofop-methyl)

*Can be applied with these herbicides provided the mixture is agitated.
11.Registered Crop(s) : Lupins (Except Lupinus albus cv), Faba Beans.
12.Effect of Soil Texture on Herbicide : Coarse soil gives poor incorporation and poor activity. Care is needed with simazine on sandy soils.
13.Effect of Soil pH on Herbicide : Higher pH's (i.e. alkaline) increase residual life.
14.Effect of Soil Organic Matter on Herbicide : Minimal.
15.Mode of Action : Mainly absorbed through plant roots, Pre-emergent.
16.Application Timing : Can be applied up to a week before sowing, or post-sowing pre-emergent. Best results are achieved when application is made to a bare moist soil and when significant rain to wet the soil through the weed root zone (20 - 30 mm) occurs within 2 - 3 weeks of application.
17.Rate Variations : 1.5 - 4.0 L/ha depending on soil type.
18.Rates Selection : Higher rate on heavier soils or where excessive stubble trash is present.
19.Crop Damage (Crop Tolerance) : All Victorian cultivars show good tolerance.
20.Effect on Crop : Intense heavy rainfall after application can cause crop damage.
21a. Effect on Clover Species :

Sub Clover - tolerant after 3 leaf stage to 1.5 L/ha. Damage more severe when growing in light textured soils. Limited trial information indicates varieties differ in their tolerance

with Karridale being less tolerant then Dalkeith.

White Clover - Tolerant. Limited trial information indicates plants beyond the 5 leaf stage are capable of tolerating 1.25 L/ha of simazine.

21c. Effect on Lucerne : Established plants tolerate up to 1.5 L/ha.
22.Soil Moisture at Application :
DRY - Reduces effect - product must be incorporated within 1 week of application.

WATERLOGGED - Cannot incorporate.
23.Frost Effects : Preceding application weed growth is affected.
25.Effect of Application Water Quality on Herbicide :
Saline Water - simazine is susceptible to slow alkaline hydrolysis.

Soil Colloids - not available.
26.Recommended Water Volume : 50 - 200 L/ha boom.
27.Nozzle Type : Flat fan.
28.Recommended Nozzle Pressure : 280 kPa (40.6 psi).
30.Recommended Wetter : X-77
31.Other Additives : If using saline water add LI 700 (100 ml/100 L)
32.Rain Fastness : 0 hours.
33.Time Interval Before Effect is Noticed : 14 days.
34.Weed Symptoms : Tolerant plants are able to convert simazine into harmless products, sensitive plants accumulate simazine in the growing points, causing chlorosis and death.
37.Plant-Back Period : All other than those on the label; 9 months (270 days) at 4.5 L/ha; 18 months (540 days) > 4.5 L/ha. If in doubt delay planting sensitive plants until the appearance of susceptible weeds - this indicates that the residue has probably dissipated.
38.Spray Tank Clean-Up : Water and detergent.
39.Other Comments : No rainfall and dry soil are likely to cause problems in the performance of this herbicide under field conditions. Only satisfactory herbicide to control Vulpia or silver grass. However on its own Simazine is not reliable against other grasses, for example rye and barley grass. Leaching is limited by its low water solubility.
Numbered data from "Crop Herbicide Information"

courtesy of A.J. Chambers, Vic. Dept of Food & Agric.

Where there is compete cover of stubble on the ground, 30-40% of the applied simazine may be lost (absorbed) .

Application of simazine after seeding in reduced tillage systems may damage the crop (especially cereals and canola).

33 REFERENCES:

Acknowledgments:

Collated by HerbiGuide. For more information see www.herbiguide.com.au or phone 08 98444064.