Diuron

1 Trade nameManufacturerForm
4FARMERS DIURON 500 SC LIQUID HERBICIDE4 FARMERS AUSTRALIA PTY LTDSUSPENSION CONCENTRATE
4FARMERS DIURON 900 DF HERBICIDE4 FARMERS AUSTRALIA PTY LTDDRY FLOWABLE
ACCENSI DIURON 500 SC HERBICIDEACCENSI PTY LTDSUSPENSION CONCENTRATE
ACP DIURON 900 WG HERBICIDEAUSTRALIS CROP PROTECTION PTY LTDWATER DISPERSIBLE GRANULE
ADAMA DIURON 900 WDG HERBICIDEADAMA AUSTRALIA PTY LIMITEDWATER DISPERSIBLE GRANULE
AGRIRON 900 WG HERBICIDEAGRI ENVIRONMENTAL PTY LTDWATER DISPERSIBLE GRANULE
Agsure Diuron 900 HerbicideELDERS RURAL SERVICES AUSTRALIA LIMITEDWATER DISPERSIBLE GRANULE
APPARENT DIURON 900 WG HERBICIDEAPPARENT PTY. LTD.WATER DISPERSIBLE GRANULE
BAYER DIURON 500 SC LIQUID HERBICIDELANXESS PTY LTDSUSPENSION CONCENTRATE
CENTION 900 WG HERBICIDELANXESS PTY LTDWATER DISPERSIBLE GRANULE
CHEMAG DIURON LIQUID HERBICIDEIMTRADE AUSTRALIA PTY LTDSUSPENSION CONCENTRATE
CHEMFORCE DIURON 900WG HERBICIDECHEMFORCE 2010 PTY LTDWATER DISPERSIBLE GRANULE
CHEMINOVA DIURON 500 FLOWABLE HERBICIDEFMC AUSTRALASIA PTY LTDSUSPENSION CONCENTRATE
CONQUEST DIURON 900 WG HERBICIDECONQUEST CROP PROTECTION PTY LTDWATER DISPERSIBLE GRANULE
COUNTRY DIURON 900 WG HERBICIDEACCENSI PTY LTDWATER DISPERSIBLE GRANULE
DI-RON 900 WG HERBICIDEHEXTAR CHEMICALS PTY LTDWATER DISPERSIBLE GRANULE
DIUREX WG HERBICIDECROP CARE AUSTRALASIA PTY LTDWATER DISPERSIBLE GRANULE
ECHEM DIURON 500 SC HERBICIDEECHEM (AUST) PTY LIMITEDSUSPENSION CONCENTRATE
FARMALINX DIURON 900 WG HERBICIDEFARMALINX PTY LTDDRY FLOWABLE
FARMOZ DIURON 500 FLOWABLE HERBICIDEADAMA AUSTRALIA PTY LIMITEDSUSPENSION CONCENTRATE
FMC DIURON 900 WG HERBICIDEFMC AUSTRALASIA PTY LTDWATER DISPERSIBLE GRANULE
FOSTERRA DIURON 900 WG HERBICIDEFOSTERRA PTY LTDWATER DISPERSIBLE GRANULE
GENFARM DIURON 900WG HERBICIDELANDMARK OPERATIONS LIMITEDWATER DISPERSIBLE GRANULE
HALLEY DIURON 500SC HERBICIDEHALLEY INTERNATIONAL ENTERPRISE (AUSTRALIA) PTY LTDSUSPENSION CONCENTRATE
IMTRADE DIURON 900 WG HERBICIDEIMTRADE AUSTRALIA PTY LTDWATER DISPERSIBLE GRANULE
KELPIE D-RON 900 WG HERBICIDESINOCHEM INTERNATIONAL AUSTRALIA PTY LTDWATER DISPERSIBLE GRANULE
KENSO AGCARE DIURON 900 WG HERBICIDEKENSO CORPORATION (M) SDN. BHD.WATER DISPERSIBLE GRANULE
MACRO PROTECT DIURON 900 WG HERBICIDEMACROFERTIL AUSTRALIA PTY LTDWATER DISPERSIBLE GRANULE
NUFARM DIURON 900 DF HERBICIDENUFARM AUSTRALIA LIMITEDDRY FLOWABLE
NUFARM FLOWABLE DIURON LIQUID HERBICIDENUFARM AUSTRALIA LIMITEDSUSPENSION CONCENTRATE
OZCROP DIURON 900 WG HERBICIDEOZCROP PTY. LTD.WATER DISPERSIBLE GRANULE
RAINBOW DIURON 900 WG HERBICIDESHANDONG RAINBOW INTERNATIONAL CO., LTD.WATER DISPERSIBLE GRANULE
Relyon Harrow 900WG HerbicideRURALCO HOLDINGS LIMITEDWATER DISPERSIBLE GRANULE
Rygel Diuron 900 WG HerbicidePROFENG AUSTRALIA PTY LTDWATER DISPERSIBLE GRANULE
SANONDA HERBICIDE DIURON 900WGSANONDA (AUSTRALIA) PTY LTDWATER DISPERSIBLE GRANULE
SIPCAM DIURON 500 SC HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDSUSPENSION CONCENTRATE
STRIKER 500 SC SELECTIVE HERBICIDE BY SANONDASANONDA (AUSTRALIA) PTY LTDSUSPENSION CONCENTRATE
SUMMIT DIURON 900WG HERBICIDESIPCAM PACIFIC AUSTRALIA PTY LTDWATER DISPERSIBLE GRANULE
TITAN DIURON 900 WG HERBICIDETITAN AG PTY LTDWATER DISPERSIBLE GRANULE
WYNCA DIURON 900 WG HERBICIDEZHEJIANG XINAN CHEMICAL INDUSTRIAL GROUP CO., LTDWATER DISPERSIBLE GRANULE
ZEE-URON 800 WP HERBICIDEUPL AUSTRALIA LIMITEDWETTABLE POWDER
ZEEURON 900 WG HERBICIDEUPL AUSTRALIA LIMITEDWATER DISPERSIBLE GRANULE
ZEE-URON 900 WG HERBICIDEUPL AUSTRALIA LIMITEDWATER DISPERSIBLE GRANULE


2 PRICE:

Diuron 500 Flowable$5.09/L
Diuron 900 WG$9.16/kg
3 ACTIVE INGREDIENTS: Diuron 500g/L
Diuron 900g/kg

4 CHEMICAL GROUP: C

5 RELATED HERBICIDES:

Ametryn 500Ametryn 500g/L
Atrazine 500 FlowableAtrazine 500-600g/L
Atrazine 900 GranulesAtrazine 900g/kg
Atrazine plus SimazineAtrazine 250g/L + simazine 250g/L
BasagranBentazone 480g/L
BetanalPhenmedipham 157g/L
Bromacil 800Bromacil 800g/kg
Bromoxynil 200Bromoxynil 200g/L
ChloridazonChloridazon 650g/kg
Cyanazine 900Cyanazine 900g/kg
DiuronDiuron 500g/L
DiuronDiuron 900g/kg
Forest MixAtrazine 620g/kg + hexazinone 210 g/kg
Forest Mix GranulesAtrazine 150g/kg + hexazinone 50 g/kg
Gesagard 500 SCPrometryn 500g/L
GraslanTebuthiuron 200g/kg (or400g/kg)
IoxynilIoxynil 250g/L
Linuron 500Linuron 500g/L or 500g/kg (or800g/kg)
Metribuzin 750Metribuzin 750g/kg
Metribuzin plus SimazineMetribuzin + simazine
Metribuzin plus TribunilMetribuzin 140g/kg + Methabenzthiazuron 560g/kg
Prometryn 900Prometryn 900g/kg
PropanilPropanil 360 g/L (600g/L)
Sencor 480Metribuzin 480g/L
Simazine Flowable 500Simazine 500g/L
Simazine Granules 900Simazine 900g/kg
Terbacil 800Terbacil 800g/kg
TerbuthylazineTerbuthylazine 750 g/kg (or800g/kg)
Terbutryn 500Terbutryn 500g/L
ToughPyridate 450g/L
TribunilMethabenzthiazuron 700g/kg
VelparHexazinone 750g/kg

6 GENERAL DESCRIPTION:

A pre and post emergence, foliar and root absorbed, residual and translocated agricultural herbicide applied as a spray in water for control of a wide range of weeds in many crops, orchards and vineyards.

7 APPLICATION METHODS AND TIPS:

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


8 WEATHER:

Rainfast in 1 hour for post emergent applications.

Frost effects: Not significant apart from a delay in development of symptoms.

Wind: No specific effect.

Inversions: Avoid spraying in inversion conditions to reduce the risk of drift.

Temperature: No specific effect

Delta T and relative humidity:

9 ADJUVANTS:

Wetting agents: Use a non ionic wetter for post em applications.

Spray oils:

10 WATER QUALITY:

Hard water: Drinking quality water is OK. Do a jar test for poorer quality sources.

Salty water: Drinking quality water is OK. Do a jar test for poorer quality sources.

Colloids: OK.

pH:

Tank life: Weeks.

11 COMPATIBILITY:

Trace elements.

See HerbiGuide Compatibilities button.

12 EQUIPMENT:

Boom sprays:

Carrier volume:

Nozzles: Flat fan.

Pressure: 150-400 kPa.

Droplet size: 200 micron is good for post-em applications. Courser droplets can be used for pre-em applications.

Aerial application:

Carrier volume: 30 L/ha.

13 SPRAYER DECONTAMINATION:

Group C.

Clean Up:

Clean soon after spraying to reduce the risk of forming dried deposits that may be difficult to remove. Mechanically removed any caked deposits.

Remove filters and clean separately. Rinse with soapy water (eg 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. Rinse with water.

Decontamination:

Remove filters and clean then soak in 500 mL household ammonia in 10 L water for 30 minutes.

Rinse sprayer with soapy water (eg 500 mL or g of Drive, Dynamo, Omo or Surf per 100 L water) or water plus 0.25% wetting agent and run through boom. Add 1 L of household ammonia (3% active ingredient) per 100 L water while filling the tank. Circulate through the system and spray a small quantity through the boom then allow to stand for several hours. Rinse with soapy water or water plus 0.25% wetting agent. Rinse with water. Or use a commercial spray tank and equipment cleaner.

Rinse nozzles and filters in water and replace then rinse the whole system with water again.

14 HERBICIDE RESISTANCE:

Tolerant plants are expected to occur and may dominate the weed population after repeated applications.

15 REPLANTING INTERVALS:

CropTime
Corn9 months (spring of following year)
Cotton9 months (spring of following year)
Sorghum; Grain9 months (spring of following year)
All other crops1-2 years according to label

16 WITHHOLDING PERIODS:

CropTypeTime
Pulse cropsGrazing35 days.
All other cropsGrazingNot required
AllHarvestNot required

17 RE-ENTRY PERIOD:

Wear protective clothing if in contact with the crop before the spray has dried.

18 PROTECTIVE CLOTHING:

Overalls, boots and washable hat. Use gloves and face shield when handling the concentrate.

19 SOIL:

Soil texture: Pre-em treatments work best on bare or near bare soil. Application on light sandy soils may lead to crop damage. Absorption of diuron increases as clay content increases. Clays with a high cation exchange capacity (C.E.C.) adsorb more diuron than those with a low C.E.C.

Soil pH:

Soil organic matter: Diuron may be absorbed and inactivated by fresh charcoal from burning heavy trash.

Soil moisture at application: Best results in moist soil with light rain a day or two after spraying. Poor weed control in dry soil.

In waterlogged soils there may be excessive movement and possible crop damage and/or poor weed control.

20 MODE OF ACTION:

Inhibits photosynthesis.

Uptake and translocation:

Taken up mainly by roots and translocated. Some foliar uptake.

Physiological effects:

Residual Life and Breakdown:

The half life in soil is about 3 months.

21 SELECTIVITY:

Crop tolerance:

Can cause damage by leaching. Crop effects of temporary yellowing may be seen if applied at the incorrect growth stage (beyond early tillering) and/or excessive rates. When used post sow, pre-emergent it has been reported to cause more injury to barley than wheat or oats. However in the herbicide tolerance trials current barley varieties are more tolerant than some wheat varieties.

Varietal sensitivities:

Carnamah, Stiletto, Wyalkatchem and Zippy may be sensitive to pre em applications.

Calingiri and Zippy wheat and Gairdner and Buloke barley may be sensitive to post em applications of Diuron + MCPA mixes.

Effect on Clover Species:

Clover is relatively tolerant.

Effect on Medic Species:

Medic has some tolerance.

Effect on Lucerne:

Registered for use on established lucerne. May damage young lucerne.

Effect on Native Plants:

Shallow rooted native plants and trees may be severely damaged.

22 DISEASE AND INSECT EFFECTS:

23 PLANT SYMPTOMS:

Symptoms normally take 7-14 days to develop.

Yellowing of leaves followed by death is common. Veinal or inter-veinal chlorosis may occur depending on the plant species.

SECONDARY EFFECTS:

24 TOXICITY:

Summary:

Low toxicity to animals and birds.

Details:

SUSMP classification (Poison schedule): Exempt from scheduling.

Mammalian toxicity:

Acute oral LD50: >3000 mg/kg (rat), [For comparison table salt is 3000 mg/kg]

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

Skin: Mild irritant. Not a skin sensitiser.

Eye: Mild irritant.

Vapour inhalation: LC50 >5 mg/L air (rat).

Not mutagenic or teratogenic in animal studies (i.e. does not cause reproductive problems in animal tests).

Possible carcinogen in some long term studies.

Chronic oral toxicity: NOEL 0.7 mg/kg/day for two years.

Animal studies indicate that repeated or prolonged exposure to diuron can result in blood disorders.

Acceptable Daily Intake (ADI): 0.007 mg/kg/day.

Other Species:

Birds: Not toxic.

Fish: Moderate toxicity LC50(96 hr) = 5.6 mg/L for rainbow trout and 5.9 mg/L for bluegill sunfish.

Invertebrates: Low toxicity. LC50(48 hr) = 12 mg/L for daphnia.

Bees: Not toxic.

Arthropods: toxicity.

Earthworms:

Algae:

Accumulation:

25 TOXICITY SYMPTOMS:

Nausea and vomiting if large amounts are ingested.

26 FIRST AID:

If SWALLOWED: Wash out mouth with water. Do NOT give anything by mouth to a semiconscious or unconscious patient.

If in EYES: Hold eyelids open and wash eyes with plenty of water for 5 minutes, remove contact lenses if present and wash for a further 10 minutes. See a doctor if symptoms persist.

If on SKIN: Remove contaminated clothing. Wash skin thoroughly with soap and water.

If INHALED: Remove patient to fresh air. See a doctor if symptoms persist.

Advice to doctor: Treat symptomatically.

Contact the Poisons Information Centre on 131126.

27 ENVIRONMENTAL FATE:

Half life in soil: 60-80 days at 20 degrees and 50% WHC in Mohlin soil. 90-180 days on MSDS.

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:

Bioconcentration factor (BCF):

28 REGISTERED CROPS:

See HerbiGuide Species Solution tab.

29 REGISTERED WEEDS:

See HerbiGuide Species Solution tab.

30 REGULATION AND LEGAL:

UN number: None allocated.

CAS numbers: 330-54-1

OPP Chemical Code:

Hazchem code: None allocated.

NOHSC classification: Hazardous.

Land transport: ADG

Dangerous goods class (ADG): Not classed as a dangerous good.

Sea transport: IMDG

Proper shipping name:

International Maritime Dangerous Goods Code (IMDG):

Class:

Packaging group: None allocated.

EPG:

Air transport: IATA/ICAO



Risk phrases:

R48/22 Harmful: danger of serious damage to health by prolonged exposure if swallowed.

Safety phrases:

S13 Keep away from food, drink and animal feeding stuffs.

S2 Keep out of reach of children.

S22 Do not breathe dust.

S37 Wear suitable gloves.

31 PROPERTIES:

Colour: Usually white or cream. Some formulations are dyed red.

Odour: Pleasant sweetish odour.

Form: Solid or liquid formulations.

Chemical name:

Empirical formula:

IUPAC:

CAS: 330-54-1

Water solubility: 36-40 mg/L at 25 C at pH ; Disperses in water.

Oil solubility:

Octanol:Water ratio: LogPow = 2.85 at 25 C at pH 5.

Soil organic carbon absorption coefficient (Koc):

Vapour Pressure: 1.1 x 10-3 mPa @ 25°C.

Vapour density:

Dissociation constant: pKa

Melting point: C.

Boiling point: 160C.

Molecular weight:

Bulk density:

Specific gravity:

Viscosity: CPS.

pH:

Flammability: Combustible. Danger of dust explosion.

Flashpoint: C.

Autoignition: C.

Corrosivity:

Stable under normal conditions.

Keep away from strong oxidising agents.

Hazardous polymerisation is not possible.

Shelf Life: 60 months (5 years) for granule and powder formulations. Liquid formulations tend to settle after a few years unless regularly turned.

(When Stored under Ideal Conditions)

32 SPILLS:

Extinguish possible sources of ignition. Dust from solid forms can create an explosion hazard.

For liquid formulations, absorb spill with earth, sand, clay or absorbent material such as vermiculite.

For solid formulations, sweep up and avoid creating too much dust.

Ventilate area after cleanup.

33 FIRE:

Extinguish with water spray, foam, carbon dioxide or dry agent.

Toxic fumes may be released in fire. Wear breathing apparatus or avoid smoke.

Avoid using too much water and contain the fire water on site to reduce the risk of environmental damage downstream.

34 COMMENTS:

35 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.

Acknowledgments:

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