Diuron 500 Flowable

Diuron 500 Flowable

1 Trade name	Manufacturer	Form
4FARMERS DIURON 500 SC LIQUID HERBICIDE	4 FARMERS PTY LTD	SC
AGCARE BIOTECH FLOWABLE DIURON 500 SC HERBICIDE	AGCARE BIOTECH PTY LTD	SC
BAYER DIURON 500 SC LIQUID HERBICIDE	LANXESS PTY LTD	SC
CHEMAG DIURON LIQUID HERBICIDE	IMTRADE AUSTRALIA PTY LTD	SC
COUNTRY DIURON 500 SC HERBICIDE	ACCENSI PTY LTD	SC
ECHEM DIURON 500 SC HERBICIDE	ECHEM (AUST) PTY LIMITED	SC
FARMOZ DIURON 500 FLOWABLE HERBICIDE	FARMOZ PTY LIMITED	SC
HALLEY DIURON 500SC HERBICIDE	HALLEY INTERNATIONAL ENTERPRISE (AUSTRALIA) PTY LTD	SC
KENSO AGCARE DIURON 500 HERBICIDE	KENSO CORPORATION (M) SDN. BHD.	SC
NUFARM FLOWABLE DIURON LIQUID HERBICIDE	NUFARM AUSTRALIA LIMITED	SC
OSPRAY DIURON 500 FLOWABLE HERBICIDE	OSPRAY PTY LTD	SC
SIPCAM DIURON 500 SC HERBICIDE	SIPCAM PACIFIC AUSTRALIA PTY LTD	SC
SMART DIURON 500 FLOWABLE LIQUID HERBICIDE	AGCARE BIOTECH PTY LTD	SC
STRIKER 500 SC SELECTIVE HERBICIDE BY SANONDA	SANONDA (AUSTRALIA) PTY LTD	SC
ZEE-URON 500 SC HERBICIDE	UNITED PHOSPHORUS LTD.	SC

4 CHEMICAL GROUP: C.

Application of diuron after seeding in reduced tillage systems may damage the crop (especially cereals).

27 ENVIRONMENTAL FATE:

Half life in soil: 60-80 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 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: 40 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)

32 COMMENTS:

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.

2. Concentration of Active Constituent : 500 g/L
4. Poison Schedule : Exempt from scheduling.
8. Dangerous Goods Class : Not classed as a dangerous good for transport.
9. Shelf Life : 60 months (5 years).
(When stored under ideal conditions- refer Page 4)
10. Mixtures Compatibility :
2,4-D amine (dimethylamine salt) Dalapon
2,4-D (sodium salt) MCPA amine (eg MCPA Amine 500)
Amitrole T (amitrole + NH3 thiocyanate) MCPA sodium salt (eg MCPA 250)
11. Registered Crop(s) : Wheat, Barley, Lucerne, Perennial grass seed.
12. Effect of Soil Texture on Herbicide : Prefer bare or near bare soil. Light sandy soils may lead to crop damage. As clay content increases adsorption also increases. Clays with a high cation exchange capacity (C.E.C.) adsorb more diuron than those with a low C.E.C.
13. Effect of Soil pH on Herbicide : Unknown.
14. Effect of Soil Organic Matter on Herbicide : If charcoal or carboniferous materials present i.e. after burning trash or crop stubble, diuron may be absorbed and inactivated.
15. Mode of Action : Root absorption, minor foliar translocation, inhibits photosynthesis. Early post-emergent.
16. Application Timing : Cereals - 2 to 5 leaves only (Z12 - 15). Lucerne - apply only to stands older than 1 year during dormant period. Grass Crops - apply only to crops older than 1 year during dormant period before weed emergence.
17. Rate Variations : 800 g to 3.5 kg/ha.
18. Rates Selection : Lower rate lighter soils. Selective control of germinating weeds (grasses and broadleaves). Higher rate heavier soils and high organic matter levels. General weed killer.
19. Crop Damage (Crop Tolerance) : Can cause damage by leaching.
20. Effect on Crop : Crop effects of temporary yellowing only noticeable if applied at incorrect growth stage (beyond early tillering) and/or excessive rates.
21. Effect on Legume Species : Tolerated by lucerne over one year old.
22. Soil Moisture at Application :
DRY - No movement through soil profile.
MOIST - Movement to weed zone.
WATERLOGGED - Excessive movement - possible crop damage and poor weed control.
23. Frost Effects : After application may delay effect on weeds.
24. Frost Free Days Required After Application : Nil.
25. Effect of Application Water Quality on Herbicide :
Saline Water - Drinkable water recommended.
Soil Colloids - Drinkable water recommended.
26. Recommended Water Volume : 40 - 120 L/ha boom. [Rhone Poulenc 170-450 L/ha]
27. Nozzle Type : Flat fan.
28. Recommended Nozzle Pressure : 150 - 300 kPa (21.5 - 43.5 psi).
29. Recommended Filter Size : Openings should be 50 mesh or larger.
31. Other Additives : No
32. Rain Fastness : 0 hours, longer for post em applications.
33. Time Interval Before Effect is Noticed : 7 - 14 days
35. Effect of Herbicide/Disease Interaction on Crop : None.
36. Withholding Period : Not applicable.
37. Plant-Back Period : At cereal rates of use no plant-back period required. At higher rates allow up to 12 months before planting crops.
38. Spray Tank Clean-Up : Flush tank, pump, hose and boom with several changes of clean water after removing nozzle tips and screens (clean these separately).
39. Other Comments : Overdosing will cause damage. Very heavy rainfall after spraying may cause crop damage. Best results are achieved if diuron is applied shortly before weed growth begins.
Numbered data 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.