Broadstrike
1 Trade nameManufacturerForm
BROADSTRIKE HERBICIDEDOW AGROSCIENCES AUSTRALIA LIMITEDWG


3 ACTIVE INGREDIENTS: flumetsulam 800 g/kg as water dispersible granules

4 CHEMICAL GROUP: B.

Sulfonamides (Triazolopyrimidine sulfonanilides)

5 RELATED HERBICIDES:

Eclipse (metosulam)

6 GENERAL DESCRIPTION:

A post emergence, herbicide for broadleaf weed control in winter cereals, Maize, leguminous crops and pastures.

7 APPLICATION METHODS AND TIPS:

Best results on young actively growing plants.

Graze pastures 2 weeks after application.

Avoid spraying during cold weather.

Reduced levels of weed control may occur when weeds have been exposed to prolonged periods of extreme heat or cold, drought, waterlogging, poor nutrition or stress due to other herbicides.

200-300 micron droplets recommended

Decontaminate with alkali detergent such as Omo, Surf or Drive at 500 g per 100 L water.

Maximum tank storage time - 1 day.

10 WATER QUALITY:

Hard water

Colloids

pH

Apply in 50-150 L/ha by boom or more than 30 L/ha by air.

11 COMPATIBILITY:

Tank mixtures with phenoxy herbicides reduces the control of Paterson's Curse.

Compatible with diuron.

13 SPRAYER DECONTAMINATION:

.Drain tank and flush with clean water for a minimum of 10 minutes. Fill the tank with clean water and flush for 15 minutes. Remove the nozzles and screens and clean separately.

Before spraying sensitive crops such as Canola, Cotton, Faba

Beans, Lupins, Sorghum and Sunflowers. Quarter fill the tank and add an 500 mL or 500 g of alkali detergent per 100 L water. Suitable alkali detergents include SURF, Cold Water SURF Concentrate, Dynamo Concentrate, OMO or DRIVE. Circulate through the system for at least 15 minutes then drain. Remove filters and nozzles and clean them separately. Finally flush the system with clean water and allow to drain. Chlorine based cleaners and Nufarm Tank Cleaner are not recommended.

14 HERBICIDE RESISTANCE:

15 REPLANTING INTERVALS:

CropTime
Barley3 months
Bean; Faba9 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Cereal Rye0
Canola9 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Chickpea3 months
Clover3 months
Cotton3 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Lucerne3 months
Lupins9 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Maize0
Medic0
Oats3 months
Pea; Field3 months
Peanut3 months
Sorghum3 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Soybean0
Sunflower3 months on deep soils, 2 years on shallow, duplex low organic matter soils.
Triticale0
Wheat0

16 WITHHOLDING PERIODS:

CropTypeTime
AllHarvest 
AllGrazing 

17 RE-ENTRY PERIOD:

18 PROTECTIVE CLOTHING:

19 SOIL:

More residual on shallow, duplex low organic matter soils.

20 MODE OF ACTION:

Inhibits the ALS (acetolactate) enzyme.

Uptake and translocation:

Leaf and root absorbed. Translocated.

Physiological effects:

Stunts growth.

Residual Life and Breakdown:

Selectivity:

Serena medic and Nungarin sub clover are more sensitive than other varieties.

23 PLANT SYMPTOMS:

Reduction in size and growth of weeds. Symptoms may not be apparent for many weeks.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Low toxicity.

Details:

Mammalian toxicity -

Acute oral LD50 - >5000 mg/kg (rats), [For comparison table salt is 3000 mg/kg]

Acute dermal LD50 - >2000 mg/kg (rabbit).

Skin -

Eye - moderately irritating.

Vapour inhalation - LC50 - > mg/L air (rat).

Chronic oral toxicity NOEL - ppm for two years.

Not mutagenic or teratogenic (i.e. does not cause cancer or reproductive problems).

Acceptable Daily Intake (ADI) - 1 mg/kg/day. No effect level (NOEL) 100 mg/kg/day.

Other Species -

Birds - low toxicity.

Fish - low toxicity LC50 > ppm.

Invertebrates - low toxicity.

Bees - non toxic.

Toxic to algae and some aquatic plants.

25 TOXICITY SYMPTOMS:

26 FIRST AID:

If SWALLOWED - No treatment is usually required. Contact Poisons Information Centre on 13 11 26.

If in EYES - Irrigate with plenty of water. See a doctor.

If on SKIN - Rinse with plenty of water, remove contaminated clothing, wash with soap and water.

If INHALED - Remove patient to fresh air.

Advice to doctor - Treat symptomatically.

27 ENVIRONMENTAL FATE:

Broadstrike is unlikely to be harmful to the environment.

It has a half life in soil of 14-120 days. In soil it is broken down mainly by microbial action. Degradation is faster in soils with high pH.

It has an EPA classification for soil mobility that ranges from

Ground water contamination: Nearly all of it remains in the top 300 mm of soil in rain fed situations. There is potential for greater movement under irrigation. Mobility increases with increasing pH and decreasing organic matter. Trace residues in ground water are degraded by anaerobic and aerobic pathways.

Replanting intervals

Accumulation in milk and tissues. Does not accumulate in animal systems.

It is not significantly broken down by sunlight or hydrolysis in water. The main method of breakdown is by microbial degradation.

31 PROPERTIES:

Water solubility at 25 C. - Dispersible.

Oil solubility -

Octanol:Water ratio at 25 C. - at pH 5;

Vapour Pressure at 25 C. - 37 x 10-7 mPa

Dissociation constant - pKa

Melting point - C.

Molecular weight -

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

Corrosiveness - Not corrosive.

33 REFERENCES:

Dow AgroSciences MSDS Feb 2001.

Dow AgroSciences label 40714/0400

2. Concentration of Active Constituent : 800 g/kg

Trade Name : Broadstrike

3. Formulation : Water dispersible granule

4. Poison Schedule : Not a scheduled poison.

6. Product colour : Cream coloured granule.

7. Product Flammability : Does not burn.

8. Dangerous Goods Class : None allocated

9. Shelf Life : 5 years

10. Mixtures Compatibility : see HerbiGuide

11. Registered Crop(s) : see HerbiGuide

12. Effect of Soil Texture on Herbicide : Little effect.

13. Effect of Soil pH on Herbicide : Breaks down faster and is more mobile in high pH soils.

14. Effect of Soil Organic Matter on Herbicide :

15. Mode of Action : Inhibits ALS enzyme.

16. Application Timing : Mainly post emergence.

17. Rate Variations : see HerbiGuide

18. Rates Selection : see HerbiGuide

19. Weeds Controlled : see HerbiGuide

20. Effect on Crop :

21. Effect on Legume Species : Little effect on many pasture legumes.

22. Soil Moisture at Application :

DRY - Poorer results

MOIST - Ideal

WATERLOGGED - Poorer results.

23. Frost Effects :

24. Frost Free Days Required After Application :

25. Effect of Application Water Quality on Herbicide :

Saline Water -

Soil Colloids -

26. Recommended Water Volume : 50-200 L/ha

27. Nozzle Type : Flat fan.

28. Recommended Nozzle Pressure : 2-4 MPa

29. Recommended Filter Size : Mesh size as suitable for nozzle being used.

30. Recommended Wetter: Uptake or non ionic surfactant. Synertrol not recommended.

31. Other Additives :

32. Rain Fastness : 4 hours.

33. Time Interval Before Effect is Noticed : Days to weeks.

34. Weed Symptoms :

35. Effect of Herbicide/Disease Interaction on Crop :

36. Withholding Period : 0-56 days.

37. Plant-Back Period :

38. Spray Tank Clean-Up : Drain tank and flush with clean water for a minimum of 10 minutes. Fill the tank with clean water and flush for 15 minutes. Remove the nozzles and screens and clean separately.

Before spraying sensitive crops such as Canola, Cotton, Faba

Beans, Lupins, Sorghum and Sunflowers. Quarter fill the tank and add an 500 mL or 500 g of alkali detergent per 100 L water. Suitable alkali detergents include SURF, Cold Water SURF Concentrate, Dynamo Concentrate, OMO or DRIVE. Circulate through the system for at least 15 minutes then drain. Remove filters and nozzles and clean them separately. Finally flush the system with clean water and allow to drain. Chlorine based cleaners and Nufarm Tank Cleaner are not recommended.

39. Other Comments :

Numbered data adapted from "Crop Herbicide Information"

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

Acknowledgments:

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