Terbutryn 500

Terbutryn 500

1 Trade name	Manufacturer	Form
AGROREG TERBUTRYN 500 SC HERBICIDE	AGROREG PTY LIMITED	SC
CMS TERBUTRYN 500 SC HERBICIDE	CMS TRADE PTY LTD	SC
CROP CARE IGRAN 500 FLOWABLE LIQUID HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	SC
FARMOZ TERBUTREX HERBICIDE	FARMOZ PTY LIMITED	SC
FLOWABLE IGRAN 500 SC LIQUID HERBICIDE	SYNGENTA CROP PROTECTION PTY LIMITED	SC
OSPRAY SALVATION HERBICIDE	OSPRAY PTY LTD	SC
OZCROP TERBUTRYN 500 SC HERBICIDE	CMS TRADE PTY LTD	SC
OZCROP TERBUTRYN HERBICIDE	CMS TRADE PTY LTD	SC
TERBUGRAN 500 FLOWABLE LIQUID HERBICIDE	CROP CARE AUSTRALASIA PTY LTD	SC

3 ACTIVE INGREDIENTS: Terbutryn 500g/L as a flowable liquid.

4 CHEMICAL GROUP: C.

27 ENVIRONMENTAL FATE:

Half life in soil: 40-50 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 0-2. (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: 25 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):
Vapour Pressure: at 25 C.
Dissociation constant: pKa
Melting point: C.
Boiling point: C.
Molecular weight:
Colour:
Odour:
Bulk density:
Specific gravity:
pH:
Flammability:
Shelf Life: years.
(When Stored under Ideal Conditions)

Field Crop

4. Poison Schedule : 5
8. Dangerous Goods Class : Not classed as a dangerous good for transport.
9. Shelf Life : In excess of 2 years.
(When stored under ideal conditions- refer Page 4)
10. Mixtures Compatibility :
2,4-D amine Banvel M (dicamba + MCPA)
Banvel 200 (dicamba) MCPA amine
Do NOT mix with :- Supracide 400 (methidathion)
11. Registered Crop(s) : Wheat, Barley, Oats (some varieties only), Triticale, Field peas.
12. Effect of Soil Texture on Herbicide : None.
13. Effect of Soil pH on Herbicide : None.
14. Effect of Soil Organic Matter on Herbicide : None.
15. Mode of Action : Foliar uptake, Post-emergent.
16. Application Timing : Wheat, barley, oats & triticale - 3 leaf to early tillering. Field peas - early post-em when peas are 10 - 12 cm high and have developed 3 - 5 nodes.
17. Rate Variations : 550 - 850 mL/ha.
18. Rates Selection : In Victoria general usage rate recommended is 700 mL/ha. If Deadnettle or Toad Rush are a major problem, use higher rate.
20. Effect on Crop : Possibly temporary early yellowing.
21a. Effect on Clover Species : Undersown white clovers may be damaged. Balansa clover is sensitive.
Sub clover - established plants are moderately tolerant.
Avoid low water rates (< 100 L/ha). Unacceptable damage is common on plants with less than 6 true leaves.
21b. Effect on Medic Species : Undersown medics may be damaged, with a reduction in growth and seed set. Barrel medic has moderate tolerance only.
21c. Effect on Lucerne : American lucerne may be damaged, unacceptable damage can occur to seedlings.
22. Soil Moisture at Application :
DRY - Weeds stressed resulting in reduced efficacy.
MOIST - Ideal.
WATERLOGGED - Weeds stressed and may result in reduced efficacy.
23. Frost Effects : Preceding application plants stressed causing reduced efficacy and increased likelihood of crop damage. Up to 4 days after application may affect efficacy.
24. Frost Free Days Required After Application : 7 - 14 days.
25. Effect of Application Water Quality on Herbicide :
Saline Water - Not critical.
Soil Colloids - Not critical.
26. Recommended Water Volume : 50 - 100 L/ha boom, 20 - 30 L/ha aircraft.
27. Nozzle Type : Flat fan.
28. Recommended Nozzle Pressure : 200 kPa (28.6 psi).
30. Recommended Wetter : No wetter.
31. Other Additives : Nil.
32. Rain Fastness : Minimum 6 hours.
33. Time Interval Before Effect is Noticed : About 7 - 10 days.
35. Effect of Herbicide/Disease Interaction on Crop :
36. Withholding Period : Field peas, canning peas: 28 days.
37. Plant-Back Period : No limitations.
38. Spray Tank Clean-Up : Flush system with clean water.
39. Other Comments : Do not apply Flowable Igran to oat varieties Avon, Saia, Cassia, and Barmah. Avoid spraying crops from mid-September onwards, needs to be applied when temperatures are cooler, otherwise likely crop setback and severe crop yellowing can occur.
Numbered data from "Crop Herbicide Information"
Courtesy of A.J. Chambers, Vic. Dept of Food & Agric.

33 REFERENCES:

Acknowledgments:

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