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1 Trade nameManufacturerForm
4FARMERS I-PIC 240 HERBICIDE4 FARMERS AUSTRALIA PTY LTDSOLUBLE CONCENTRATE
AAKO TEPEE 240 SL HERBICIDEAAKO AUSTRALIA PTY LIMITEDAQUEOUS CONCENTRATE
AC IMPLODE HERBICIDEAXICHEM PTY LTDSOLUBLE CONCENTRATE
ACCENSI IMAZAPIC 240 HERBICIDEACCENSI PTY LTDSOLUBLE CONCENTRATE
ACP BONFIRE 240 HERBICIDEAUSTRALIS CROP PROTECTION PTY LTDSOLUBLE CONCENTRATE
APPARENT BLAZE HERBICIDEAPPARENT PTY. LTD.SOLUBLE CONCENTRATE
AW ZEPPLIN 240 HERBICIDEAGRI WEST PTY LIMITEDSOLUBLE CONCENTRATE
BARMAC IMAZAPIC 240 HERBICIDEAMGROW PTY LTDSOLUBLE CONCENTRATE
BRIMSTONE HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDSOLUBLE CONCENTRATE
CONQUEST RANGA 240 SL HERBICIDECONQUEST CROP PROTECTION PTY LTDSOLUBLE CONCENTRATE
CROP CARE FLAME HERBICIDECROP CARE AUSTRALASIA PTY LTDAQUEOUS CONCENTRATE
CROP CARE SPARK HERBICIDECROP CARE AUSTRALASIA PTY LTDSOLUBLE CONCENTRATE
EMAZ HERBICIDEECHEM (AUST) PTY LIMITEDAQUEOUS CONCENTRATE
FARMALINX TORCH 240 SL RESIDUAL HERBICIDEFARMALINX PTY LTDSOLUBLE CONCENTRATE
FLAME HERBICIDEBASF AUSTRALIA LTD.AQUEOUS CONCENTRATE
FURNACE HERBICIDEFMC AUSTRALASIA PTY LTDSOLUBLE CONCENTRATE
GENFARM IMAZAPIC 240 HERBICIDELANDMARK OPERATIONS LIMITEDSOLUBLE CONCENTRATE
IMARK 240 HERBICIDESHANDONG RAINBOW INTERNATIONAL CO., LTD.SOLUBLE CONCENTRATE
IMPOSE HERBICIDEADAMA AUSTRALIA PTY LIMITEDAQUEOUS CONCENTRATE
IMTRADE EMBER 240 SL HERBICIDEIMTRADE AUSTRALIA PTY LTDSOLUBLE CONCENTRATE
JNO Imazapic 240 HerbicideJNO INVESTMENT HOLDINGS PTY LTDSOLUBLE CONCENTRATE
KENSO AGCARE GUNDY 240 HERBICIDEKENSO CORPORATION (M) SDN. BHD.SOLUBLE CONCENTRATE
NovaGuard Imazapic 240 HerbicideNOVAGUARD PTY LTDSOLUBLE CONCENTRATE
OZCROP IMAZAPIC 240 SL HERBICIDEOZCROP PTY. LTD.SOLUBLE CONCENTRATE
RAINBOW IMAZAPIC 240 HERBICIDESHANDONG RAINBOW INTERNATIONAL CO., LTD.SOLUBLE CONCENTRATE
Relyon Flash 240 HerbicideRURALCO HOLDINGS LIMITEDSOLUBLE CONCENTRATE
SABAKEM IMAZAPIC 240SL HERBICIDESABAKEM PTY LTDSOLUBLE CONCENTRATE
TITAN IMAZAPIC 240 HERBICIDETITAN AG PTY LTDSOLUBLE CONCENTRATE

3 ACTIVE INGREDIENTS: Imazapic 240g/L as an aqueous concentrate.

4 CHEMICAL GROUP: B Herbicide. Imidazolinone.

5 RELATED HERBICIDES:

Imazapic is sometimes referred to as imazameth.

6 GENERAL DESCRIPTION:

A residual herbicide for the pre emergence control of some grasses and broadleaved weeds.

7 APPLICATION METHODS AND TIPS:

Long replant times. 4 months and 200 mm rain is required before tolerant crops such as Wheat, Barley and Chickpea can be planted.

Do not apply to waterlogged soils.

9 ADJUVANTS:

Not necessary.

10 WATER QUALITY:

Hard water

Colloids

pH

Tank life: Long.

11 COMPATIBILITY:

Trace elements.

14 HERBICIDE RESISTANCE:

Weeds tolerant to group B herbicides may not be controlled by imazapic. Annual ryegrass, Wild Oats and Wild Radish are expected to develop resistance after several applications.

15 REPLANTING INTERVALS:

CropTime

16 WITHHOLDING PERIODS:

CropTypeTime
AllHarvest 
AllGrazing 

17 RE-ENTRY PERIOD:

18 PROTECTIVE CLOTHING:

Use elbow length PVC gloves when handling the concentrate.

19 SOIL:

20 MODE OF ACTION:

Inhibitor of the ALS (acetolactate) enzyme.

Uptake and translocation:

Root absorbed.

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:

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Low toxicity but may irritate eyes.

Details:

Poison Schedule - Exempt.

Mammalian toxicity - Very low.

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

Acute dermal LD50 - >5000 mg/kg (rabbit).

Skin - May be slightly irritating.

Eye - Irritating.

Vapour inhalation - Practically non toxic. LC50 - >2.38 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).

Anaemia and liver effects seen at high doses and muscle effects at lower doses from chronic exposure. No adverse effects expected in the field.

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 - Induce vomiting. Contact a doctor.

If on Skin - Wash skin thoroughly with soap and water. See a doctor if irritation persists.

If in Eyes - Flush with water for 15 minutes. See a doctor if irritation persists.

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

Advice to Doctor - Treat symptomatically.

27 ENVIRONMENTAL FATE:

It has a half life in soil of weeks to months. The half life is reduced in waterlogged conditions.

It has an EPA classification for soil mobility that ranges from

Ground water contamination.

Replanting intervals: Wheat, Barley and Chickpea - 4 months.

Mung Bean, Lucerne - 12 months.

Sorghum, Cotton, Sunflower - 24 months.

All other crops - 36 months.

Accumulation in milk and tissues.

Do not spray within 50 metres of waterways or wetlands.

31 PROPERTIES:

Water solubility at 25 C. - Fully miscible.

Oil solubility -

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

Vapour Pressure at 25 C. - 65% volatiles as water

Dissociation constant - pKa

Melting point - Liquid.

Molecular weight -

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

Flash Point - >900C.

Density - 1.07-1.09 kg/L

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 : 0

6. Product colour : amber to green-brown clear liquid.

7. Product Flammability : Nil.

8. Dangerous Goods Class : NA

9. Shelf Life :

12. Effect of Soil Texture on Herbicide :

13. Effect of Soil pH on Herbicide :

14. Effect of Soil Organic Matter on Herbicide :

15. Mode of Action : ALS inhibitor.

16. Application Timing : Pre emergent.

17. Rate Variations : 150-200 mL/ha

18. Rates Selection :

20. Effect on Crop :

21. Effect on Legume Species :

22. Soil Moisture at Application :

DRY - Requires moisture for activation.

MOIST - Ideal

WATERLOGGED - Reduced residual activity

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 : More than 50 L/ha

27. Nozzle Type : Flat fan.

28. Recommended Nozzle Pressure : 200-300 kPa

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

30. Recommended Wetter : None.

31. Other Additives : None.

32. Rain Fastness : 0 hours.

33. Time Interval Before Effect is Noticed :

34. Weed Symptoms :

35. Effect of Herbicide/Disease Interaction on Crop :

36. Withholding Period : 35 days.

37. Plant-Back Period : Wheat, Barley and Chickpea - 4 months.

Mung Bean, Lucerne - 12 months.

Sorghum, Cotton, Sunflower - 24 months.

All other crops - 36 months.

Spray Tank Clean-Up : Drain tank and flush with clean water for a minimum of 10 minutes. Fill the tank with clean water and rinse with a boom cleaning agent.

Remove the nozzles and screens and clean separately.

39. Other Comments :

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.