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Barometer Herbicide

APVMA Code :63239

Active Constituent(s):

200g/L bromoxynil

(present as the n-octanoyl ester)


200g/L MCPA

(present as the ethyl hexyl ester)

Registered For:



 Commercial use

 Domestic use

Overview: For the control of weeds in wheat, oats, barley, cereal rye, triticale, linseed, grass pastures and turf.
Chemical Group hydroxybenzonitrile + phenoxyaliphatic

 SDS (297.8 KB)

 Label (344.2 KB)

General Instructions


Before opening, carefully read Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.




To ensure even mixing, half fill spray tank with clean water and add the required amount of this product. Agitate thoroughly, then add the remainder of water. Agitate again before spraying commences.




DO NOT use rain-drop or air-induction nozzles as coverage of weeds may not be adequate.


Boom Sprayer: Calibrate the machine before use to ensure that the correct application rate is obtained. Check height of boom above the crop to ensure that the spray is evenly distributed.


Cereals: Apply 50 to 200 litres of water per hectare. Use higher water volume (min. 100L/ha) where the weed infestation is heavy, the crop cover is dense or when tank-mixing with Diclofop methyl 500. Complete coverage of weeds is essential.


Linseed: Apply a minimum of 220 litres of water per hectare.


Turf: Apply a minimum of 500 litres of water per hectare.


Aerial Application: Apply a minimum of 22 litres of water per hectare or 30 litres of water per hectare if tank-mixing with Diclofop methyl. Markers should always move upwind before aircraft passes overhead. Application by micronaire equipment may give variable results.


Equipment Maintenance and Usage

After use wash application equipment thoroughly with Spraymate Tank & Equipment Cleaner and rinse several times.



This product is physically compatible in the spray tank with one of the following herbicides or insecticides in wheat and barley only.

Metsulfuron methyl, Diclofop methyl 500, Dicamba 500, MCPA, Dimethoate, Omethoate, Endosulfan or Chlorpyrifos. When mixed with Metsulfuron methyl or Dicamba 500, do not apply to cereals undersown with lucerne. When mixed with Diclofop methyl 500, do not exceed 1.4 litres of this product per hectare. Observe all instructions on the mixture partner label. As formulations of other manufacturers' products are beyond the control of Cheminova, all mixtures should be tested prior to mixing commercial quantities.




DO NOT spray if weeds are wilted by dry or cold weather or if crops are at a susceptible stage, or if rain is likely within 4 hours.


DO NOT apply if frosts are imminent.


DO NOT apply to diseased or frost affected crops or turf.


Resistance Warning


Cheminova Barometer Herbicide is a member of both the nitriles and the phenoxys groups of herbicides. Cheminova Barometer has both the inhibitors of photosynthesis at photosystem II and disruptors of plant cell growth mode of action. For weed resistance management Barometer is a Group C and Group I Herbicide.


Some naturally-occurring weed biotypes resistant to Cheminova Barometer and other Group C and Group I 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 this product or other Group C and Group I 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 Barometer to control resistant weeds.


Protection of wildlife, fish, crustaceans and environment

Dangerous to fish. 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, that may cause spray to drift onto nearby susceptible plants/crops, cropping, lands or pastures. Avoid spray drift and vapour movement onto susceptible crops such as cotton, tobacco, tomatoes, vines, lupins, fruit trees and ornamentals. Do not apply by misting machines.


Note: Maximum daily temperatures at or above 20C at application, or on days following treatment, may result in seedling mortality and established plants may be damaged.


Safety Directions


Product is poisonous if inhaled or swallowed. Attacks the eyes and will irritate the skin. Avoid contact with eyes and skin. Do not inhale spray mist. When preparing the spray and using the prepared spray wear cotton overalls buttoned to the neck and wrist, a washable hat and elbow-length PVC gloves and face shield or goggles. If product in eyes, wash it out immediately with water. After use and before eating, drinking or smoking, wash hands, arms and face thoroughly with soap and water. After each day's use, wash gloves, face shield or goggles and contaminated clothing.



5L, 20L only

Store in closed, original container in a cool, well-ventilated area. Do not store for prolonged periods in direct sunlight.


Refillable containers (1000L only)

Store in the closed, original container in a cool, well-ventilated area. Do not store for prolonged periods in direct sunlight.


Envorodrum 110L Mini Bulk Returnable Container

Store the original sealed Envirodrum in a cool, well ventilated area. Do not store for prolonged periods in direct sunlight. Do not tamper with the Micro Matic valve or the security seal. Do not contaminate the Envirodrum with water or any other foreign matter.



5L, 20L only

Triple or preferably pressure rinse containers before disposal. Add rinsings to spray tank. Do not dispose of undiluted chemicals on site. If recycling, replace cap and return clean containers to recycler or designated collection point. If not recycling, break, crush or puncture and bury empty containers in a local authority landfill. If no landfill is available, bury the containers below 500 mm in a disposal pit specifically marked and set up for this purpose clear of waterways, desirable vegetation and tree roots. Empty containers and product should not be burnt.


Refillable containers (1000L only)

Empty contents fully into application equipment. Close all valves and return to point of supply for refill or storage.


Envorodrum 110L Mini Bulk Returnable Container

After each use of the product, please ensure that the Micro Matic coupler, delivery system and hoses are disconnected, triple rinsed with clean water and drained accordingly. When the contents of the Envirodrum have been used, please return the empty Envirodrum to the point of purchase.

The Envirodrum remains the property of Cheminova.


Product details last updated on 25 Jun 2010


DISCLAIMER: This is not the BAROMETER 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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