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Diuron 900 WG


APVMA Code :58451

Active Constituent(s): 900g/kg diuron
Registered For:


 Commercial use

 Domestic use

Overview: For selective weed control.

Chemical Group ureas


 SDS (293.2 KB)

 Label (2.1 MB)

General Instructions


Cheminova Diuron 900 WG Herbicide is a powerful weedkiller which remains active in the soil for a long time. Use only at recommended rates and read label directions carefully before using. The effects of this product on weeds are slow to appear and will not become apparent until it is carried into the root zone of the weeds or weed seeds by moisture. Results vary with soil type - lower rates are effective on lighter soils and higher rates on heavier soils.


This product is most effective and economical when applied to moist bare soil or soil carrying a small amount of vegetation. Application should be made shortly before the period of main weed growth and best results will be achieved if rainfall or irrigation occurs within 3-4 days of application. Where additional "knockdown" is required, 600g/L non-ionic surfactant at the rate of 250 - 500 mL per 100 L of water should be added. If existing herbage is excessive, it is advisable to mix Paraquat 250 with Cheminova Diuron 900 WG Herbicide.


This product is inactivated by absorption onto charcoal and other carboniferous materials.




This product mixes readily with water. Steadily add the required quantity to the spray vat, which should be 50-75% full. The agitation system should be running during addition of the product and during the spraying operation. If left to settle, stir/agitate thoroughly before spraying. Avoid drawing accumulated particles into outlet pipe. Do NOT premix as a paste.


Wetting Agent

Add 600g/L non-ionic surfactant at 125mL/100L of spray mixture when applying to emerged weeds as a foliar spray.



Cheminova Diuron 900 WG Herbicide is compatible with: Paraquat 200 and 250g/litre formulations.


Weed Control on Noncrop Land

Cheminova Diuron 900 WG Herbicide is an effective herbicide for the residual control of many annual and perennial grasses and broadleaf weeds on non-crop land such as rail tracks, roadways, firebreaks, industrial sites, fence lines, storage areas, irrigation and drainage ditches where bare ground is desired. Established perennials such as Bindweed, Johnson grass, Nutgrass, and Russian Knapweed are not satisfactorily controlled at rates recommended. Duration of control depends on the amount of chemical applied, soil type, rainfall and particular weed species.


Selective Use in Crops

For selective use in crops it is important to apply recommended rates correctly. Cheminova Diuron 900 WG Herbicide is most effective when applied to soil which has been well tilled (clod free) and is free of weeds and trash. Where not recommended for overall application care should be taken to avoid spray drift onto fruit or foliage. Wetting agents should only be used where specified.




DO NOT replant treated areas within 2 years of application of Cheminova Diuron 900 WG Herbicide except when otherwise stated on the label.


DO NOT use on very light sandy or gravelly soils as crop damage may occur.


Resistance Warning


Cheminova Diuron 900 WG Herbicide is a member of the urea group of herbicides. Cheminova Diuron 900 WG Herbicide has the inhibitor of photosynthesis at photosystern II mode of action. For weed resistance management Cheminova Diuron 900 WG Herbicide is a Group C herbicide. Some naturally occurring weed biotypes resistant to Cheminova Diuron 900 WG Herbicide and other Group C herbicides may exist through normal genetic variability in any weed population. The resistant individuals can eventually dominate the weed population if these herbicides are used repeatedly. These resistant weeds will not be controlled by Cheminova Diuron 900 WG Herbicide or other Group C herbicides. Since the occurrence of resistant weeds is difficult to detect prior to use, Cheminova accepts no liability for any losses that may result from the failure of Cheminova Diuron 900 WG Herbicide to control resistant weeds.


Protection of wildlife, fish, crustaceans and environment

DO NOT contaminate streams, rivers or waterways with the chemical or used containers.


Protection of crop, native and other non-target plants

DO NOT apply under weather conditions or from spraying equipment which may cause spray drift onto nearby susceptible plants/crops, cropping lands or pastures.


DO NOT use for soil sterilisation near or under trees or shrubs.


Safety Directions


Avoid contact with eyes and skin. Do not inhale dust or spray mist. If product on skin, immediately wash area with soap and water. After use and before eating, drinking or smoking wash hands, arms and face thoroughly with soap and water.





Store in the closed, original container in a dry, cool, well ventilated locked room or place away from children, animals, food, feedstuffs, seed and fertilisers. Do not store for prolonged periods in direct sunlight.



Single rinse bag before disposal. Add rinsings to spray tank. DO NOT dispose of undiluted chemicals on site. Puncture and bury empty containers in a local authority landfill. If no landfill is available, bury the container below 500mm in a disposal pit specifically marked and set up for the purpose clear of waterways, desirable vegetation and tree roots. Empty containers and product should not be burnt.


Product details last updated on 02 Jul 2010


DISCLAIMER: This is not the DIURON 900 WG label. To view or print the label for this product, click the "MSDS/Label" tab at the top of this page. Always follow label instructions.


For specialist advice in an EMERGENCY only phone 1800 033 111, TOLL-FREE, ALL-HOURS, NATIONWIDE

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