Atrazine 500 Flowable

Atrazine 500 Flowable

1 Trade name	Manufacturer	Form
4FARMERS ATRAZINE 500 SC	4 FARMERS PTY LTD	SC
AGROREG ATRAZINE 500 SC HERBICIDE	AGROREG PTY LIMITED	SC
ATRAFLO HERBICIDE	BAYER CROPSCIENCE PTY LTD	SC
CMS ATRAZINE 500 SC HERBICIDE	CMS TRADE PTY LTD	SC
CROP CARE ATRAZINE FLOWABLE HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	SC
CROP CARE ATRAZINE HI-LOAD 600 HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	SC
DOW AGROSCIENCES ATRAZINE 500 FLOWABLE HERBICIDE	DOW AGROSCIENCES AUSTRALIA LIMITED	SC
FARMOZ FARMOZINE 500 FLOWABLE HERBICIDE	FARMOZ PTY LIMITED	LD
FLOWABLE GESAPRIM 500 SC LIQUID HERBICIDE	SYNGENTA CROP PROTECTION PTY LIMITED	LC
FLOWABLE GESAPRIM 600 SC LIQUID HERBICIDE	SYNGENTA CROP PROTECTION PTY LIMITED	SC
KENSO AGCARE ATRAZINE 500 SC HERBICIDE	KENSO CORPORATION (M) SDN BHD	SC
NUFARM FLOWABLE NU-TRAZINE LIQUID HERBICIDE	NUFARM AUSTRALIA LIMITED	SC
NUFARM NU-TRAZINE 600 HERBICIDE	NUFARM AUSTRALIA LIMITED	SC
OSPRAY ATRAZINE 500 SC HERBICIDE	OSPRAY PTY LTD
SIPCAM ATRAZINE 600 FLOWABLE HERBICIDE	SIPCAM PACIFIC AUSTRALIA PTY LTD	SC
SIPCAM PACIFIC MAIZINA 500 FLOWABLE HERBICIDE	SIPCAM PACIFIC AUSTRALIA PTY LTD	SC
TRADELANDS ATRAZINE 500 FLOWABLE HERBICIDE	TRADELANDS PTY LTD	SC

Previously sold as Farmozine 500.

PHYSICAL CHARACTERS:

Solubility - 33 mg/L in water.

It has a leaching index of 10. (for comparison, trifluralin is 0-1, simazine is 5 and chlorsulfuron is 25-30).

It has a half life 55 days at 20 degrees and 50% WHC in Mohlin soil.

The NOEC for crustacea is higher for freshwater species than marine species. The lowest EC50 was 4.3 mg/L for marine copepods and the lowest NOEC was 1 mg/L for pink shrimps. Most other aquatic invertebrates have much higher tolerances.

Bacteria are very tolerant of atrazine. There is no effect on soil microbial activity at 15 kg a.i./ha. There was no effect on bacteria from sewerage sludge at > 100 mg/L so it is not expected to cause problems in treatment plants.

The lowest chronic NOEC in fish was 0.06 mg/L.

The lowest chronic NOEC in aquatic invertebrates (Daphnia magna) was 0.04 mg/L.

No effects were seen on ground beetles at 1.5 kg a.i./ha.

The LC50 for earthworms is 78 mg/kg.

Atrazine doesn't affect N conversion in the soil.

No effect on seed germination or radicle elongation at rates up to 4.5 kg a.i./ha.

NOEC for birds is 1250 mg/kg.

Best results in moist soil when rain follows application to incorporate herbicide. Atrazine will survive on dry soil but will have little action until water is present to take it into the roots.

See Best Management Practices for Atrazine in Broadacre Crops.

4 CHEMICAL GROUP: C.

9 ADJUVANTS:

For pre emergent applications no adjuvants are required.

For post emergent applications the mineral spray oils such as DC-Tron, DC-Trate, Spray Plus, Uptake, Ad-here and others at 1-2% provide far better control of most weeds than the esterified vegetable oils such as Hasten and Kwickin or wetting agents or multi purpose products such as LI700.

Results from the Birchip Group showed Radish control of 84-97% with 0.5-2% of mineral oils, 59-69% with 0.3-1% of esterified vegetable oils and 51% with 0.25% of wetting agent.

More prometryn is absorbed by susceptible plants in less by tolerant plants in good nutrient conditions and inactivation in tolerant plants is faster (, ) so better weed control and greatest crop safety occurs at optimum nutritional levels.

2. Concentration of Active Constituent : 500 g/L of Atrazine

3. Formulation : Suspension concentrate.

4. Poison Schedule : Exempt from scheduling.

8.	Dangerous Goods Class : Not classed as a dangerous good.
9.	Shelf Life :

(When stored under ideal conditions- refer page 4)

10.	Mixtures Compatibility :

2,4-D Amine Spray.Seed (paraquat + diquat)

Gramoxone (paraquat) Spray.Seed 200

11.	Registered Crop(s) : Established Lucerne, maintenance of fallow areas prior to sowing wheat, peas or lupins.
12.	Effect of Soil Texture on Herbicide : Do NOT use as a pre-emergent spray on light sandy soils.
13.	Effect of Soil pH on Herbicide : High pH's (i.e. alkaline) increases residual life.
14.	Effect of Soil Organic Matter on Herbicide : More readily adsorbed on muck or clay soils.
15.	Mode of Action : Both root and shoot absorbed, latter of minor importance. Selective and non-selective depending on timing of application. Preplant, pre-emergent or post-emergent but before weed seedlings are more than 3.8cm (1.5") high.
16.	Application Timing : Pre-emergent - At or immediately after sowing and before crop and weeds emerge. Post-emergent - As soon as possible after crop has emerged and has developed 2 - 3 leaves.
17.	Rate Variations : 2.5 - 3.6 L/ha.
18.	Rates Selection : Lower rate will effectively control many common annual broadleaf species. Higher rate non-selective weed control.
19.	Weeds Controlled : Mintweed, barley grass, brome grass, Guildford grass, wild oats, ryegrass, silver grass, Yorkshire fog, cobbler's-pegs, Sesbania pea, wild turnip, khaki weed, chickweed, common Sowthistle, radish, wild lettuce, peppercress, fleabanes, medics, clover, Paterson's curse, sorrel, Storksbill, double gee/three cornered jack, plantains, capeweed.
20.	Effect on Crop : Damage will occur if applied with crop oil to stressed crops.
21.	Effect on Clover Species : not available.
22.	Soil Moisture at Application : Acts mainly through root absorption, therefore for satisfactory results it is essential that sufficient rain or irrigation to thoroughly wet soil through weed root zone occurs or is made within 10 days of spraying.
25.	Effect of Application Water Quality on Herbicide :

Saline Water - Decomposes slowly add LI 700 (100 ml/100 L) to water first.

26.	Recommended Water Volume : Suggested minimum volumes:- Boom Pre-plant/pre-em. 55 L/ha. Aircraft Pre-plant/pre-em. 15 L/ha Post-emergence 110 L/ha Post-emergence22 L/ha. For aircraft application the need for good soil moisture at the time of application and follow up rain or irrigation within 10 days is critical.
27.	Nozzle Type : Flat fan.
28.	Recommended Nozzle Pressure : 200 - 300 kPa (28.6 - 43.5 psi).
29.	Recommended Filter Size :
30.	Recommended Wetter : Activator 90 at 125 ml/100 L or X-77 at 250 ml/100 L when applying to weeds as a foliar spray.
31.	Other Additives : Crop oil.
32.	Rain Fastness : 6 hours.
33.	Time Interval Before Effect is Noticed : 1 - 2 weeks.
34.	Plant Symptoms : Leaf chlorosis (yellowing).
35.	Effect of Herbicide/Disease Interaction on Crop :
36.	Withholding Period : 0 days.
38.	Spray Tank Clean-Up : Flush with clean water.
39.	Other Comments : Under dry conditions, mechanical incorporation of 1 - 3 cm may increase the degree of weed control. Large clods should be broken down to obtain an even weed kill. Under dry or cold conditions atrazine will persist longer. Soil residues may remain for greater than 1 year depending on the rate applied. It is usually considered more toxic than other triazines. Has a shorter residual life than Simazine. Atrazine leaches downward and may move laterally (<-->) with water. Do NOT pre-mix as a paste, if left to settle stir/agitate thoroughly before spraying. Tolerant plants are able to change atrazine into a harmless form. Susceptible plants accumulate atrazine, causing chlorosis and death.

Numbered data from "Crop Herbicide Information"

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

33 REFERENCES:

See

Acknowledgments:

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