Velpar

Velpar

1 Trade name	Manufacturer	Form
ALLFIRE HEXAZINONE HERBICIDE	AGVANTAGE PTY LTD	SL
CHEMAG VELCHEM 750 WG HERBICIDE	IMTRADE AUSTRALIA PTY LTD	WG
DUPONT VELPAR DF HERBICIDE	DU PONT (AUSTRALIA) LTD	DF
DUPONT VELPAR L HERBICIDE	DU PONT (AUSTRALIA) LTD	AC
FARMOZ BOBCAT SL HERBICIDE	FARMOZ PTY LIMITED	SL
GENEREX HEXAZINONE HERBICIDE	GENEREX AUSTRALIA PTY LIMITED	AC
TRADELANDS HEXAZINONE 250 SL HERBICIDE	TRADELANDS PTY LTD	SL

2 PRICE:

$119.2	/kg
$119.2	/L

3 ACTIVE INGREDIENTS: Hexazinone 750g/kg

4 CHEMICAL GROUP: C

5 RELATED HERBICIDES:

Ametryn 500	Ametryn 500g/L
Atrazine 500 Flowable	Atrazine 500g/L
Atrazine 900 Granules	Atrazine 900g/kg
Atrazine plus Simazine	Atrazine 250g/L + simazine 250g/L
Basagran	Bentazone 480g/L
Betanal	Phenmedipham 157g/L
Bromacil 800	Bromacil 800g/kg
Bromoxynil 200	Bromoxynil 200g/L
Chloridazon	Chloridazon 650g/kg
Cyanazine 900	Cyanazine 900g/kg
Diuron 500 Flowable	Diuron 500g/L
Diuron 900 Wettable Granules	Diuron 900g/kg
Forest Mix	Atrazine 620g/kg + hexazinone 210 g/kg
Forest Mix Granules	Atrazine 150g/kg + hexazinone 50 g/kg
Gesagard 500 SC	Prometryn 500g/L
Graslan	Tebuthiuron 200g/kg
Ioxynil	Ioxynil 250g/L
Lexone plus Simazine	Metribuzin + simazine
Lexone plus Tribunil	Metribuzin 140g/kg + Methabenzthiazuron 560g/kg
Linuron 500	Linuron 500g/L or 500g/kg
Metribuzin 750	Metribuzin 750g/kg
Prometryn 900	Prometryn 900g/kg
Propanil	Propanil 360 g/L
Sencor 480	Metribuzin 480g/L
Simazine Flowable 500	Simazine 500g/L
Simazine Granules 900	Simazine 900g/kg
Terbacil 800	Terbacil 800g/kg
Terbutryn 500	Terbutryn 500g/L
Tough	Pyridate 450g/L
Tribunil	Methabenzthiazuron 700g/kg
Velpar	Hexazinone 750g/kg

6 GENERAL DESCRIPTION:

A translocated, leaf and root absorbed, residual herbicide for the control of some woody weeds, sedges, perennial grasses and broadleaf weeds around buildings, pasture and in pine plantations.

7 APPLICATION METHODS AND TIPS:

This product may kill many trees and other desirable plants if not correctly applied.

Don't use near waterways or where water may leach herbicide to desirable species.

Don't use adjuvants for selective overall spraying.

Best results when applied to actively growing plants and temperature is greater than 25⁰C. Symptoms may be slow to appear in cool weather.

For soil application, best results when applied to bare, moist soil and rain follows.

On slopes greater than 20-30 degrees apply as spot or strip treatment.

9 ADJUVANTS:

Don't use adjuvants for overall application on pines.

10 WATER QUALITY:

Hard water

Colloids

pH

Tank life: Long.

11 COMPATIBILITY:

14 HERBICIDE RESISTANCE:

Plant populations resistant to group C herbicides will probably be tolerant to hexazinone.

15 REPLANTING INTERVALS:

Crop

Time

16 WITHHOLDING PERIODS:

Crop	Type	Time
All	Harvest
All	Grazing

17 RE-ENTRY PERIOD:

18 PROTECTIVE CLOTHING:

Cotton overalls, washable hat, elbow length PVC gloves and goggles.

19 SOIL:

20 MODE OF ACTION:

Uptake and translocation:

Absorbed by leaves, stems and roots.

Physiological effects:

Residual Life and Breakdown:

21 SELECTIVITY:

Relatively non selective.

Crop tolerance:

Varietal sensitivities:

Effect on Clover Species:

Effect on Medic Species:

Effect on Lucerne:

Effect on Native Plants:

22 DISEASE AND INSECT EFFECTS:

23 PLANT SYMPTOMS:

May be slow to appear in cool weather.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Harmful if swallowed. Will damage eyes. Will irritate skin. Do not inhale dust from solid formulations.

Details:

Mammalian toxicity -

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

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

Skin -

Eye -

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).

Other Species -

Birds - toxicity.

Fish - toxicity LC50 > ppm.

Invertebrates - toxicity.

Bees - toxicity.

25 TOXICITY SYMPTOMS:

26 FIRST AID:

Contact a doctor or Poisons Information Centre on 13 11 26.

If Swallowed - Contact a doctor immediately. If more than 15 minutes from medical help, induce vomiting preferably with Ipecac Syrup APF

If on Skin - Wash skin thoroughly with soap and water.

If in Eyes - Flush with water for 15 minutes then see a doctor.

If Inhaled - Remove patient from contaminated area to fresh air.

27 ENVIRONMENTAL FATE:

It has a half life in soil of some months.

It has an EPA classification for soil mobility that ranges from

Ground water contamination

Replanting intervals - Long.

Accumulation in milk and tissues.

31 PROPERTIES:

Water solubility at 25 C. - ppm at pH ;

Oil solubility -

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

Vapour Pressure at 25 C. -

Dissociation constant - pKa

Melting point - C.

Molecular weight -

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

33 REFERENCES:

Ashton, F.M. and Crafts, A.S. (1981) Mode of Action of Herbicides. (Wiley-Interscience publication).

Kearney, P.C. and Kaufman, D.D. (1976). Herbicides. Chemistry, degradation and mode of action. Vol 1 & 2.

Numbered Data

4. Poison Schedule : 5

6. Product colour :

7. Product Flammability :

8. Dangerous Goods Class :

9. Shelf Life : Long.

12. Effect of Soil Texture on Herbicide : Use higher rates on light soils in high rainfall regions and heavy soils everywhere.

13. Effect of Soil pH on Herbicide :

14. Effect of Soil Organic Matter on Herbicide : Use higher rate on soils with high organic matter contents.

15. Mode of Action : Inhibitor of photosynthesis at photosystem 2.

16. Application Timing : Pre and Post emergent.

22. Soil Moisture at Application :

DRY - Reduced effectiveness.

MOIST - Ideal

WATERLOGGED - Don't use on poorly drained areas.

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 : 100-400 L/ha for boom application. 1000-4000 L/ha for hand application. Minimum of 20 L water for each 1 kg of herbicide for aerial application.

27. Nozzle Type : Flat fan or cone.

28. Recommended Nozzle Pressure :

29. Recommended Filter Size : 50 Mesh size as suitable for nozzle being used.

30. Recommended Wetter - Non ionic surfactants.

31. Other Additives : Surfactant for pre planting or non selective applications.

32. Rain Fastness : hours.

33. Time Interval Before Effect is Noticed :

34. Weed Symptoms :

36. Withholding Period : Long.

37. Plant-Back Period : Long.

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 use a boom cleaning agent.

Remove the nozzles and screens and clean separately.

39. Other Comments : Continuously agitate spray solution.

Numbered data adapted from "Crop Herbicide Information"

by A.J. Chambers.

Acknowledgments:

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