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MCPA 750


APVMA Code :62913

Active Constituent(s):

750g/L MCPA

(present as dimethylamine salt)

Registered For:


 Commercial use

 Domestic use

Overview: For the selective control of broadleaf weeds in cereals, linseed, pastures, rice, sugar cane and turf.

Chemical Group phenoxy acids


 SDS (304.6 KB)

 Label (412.9 KB)

General Instructions


Weeds should be sprayed while actively growing and at their most susceptible stage. As a general guide, annuals should be sprayed when young and perennials just prior to appearance of bud stage. Extremes of cold or drought are unfavourable. The best conditions are when the soil is moist,weather fine and rain unlikely within 6 hours of application. DO NOT spray crops or weeds outside the stages indicated in "Critical Comments" as damage, loss of yield or inadequate weed control may result. DO NOT spray in high winds.




This product mixes readily with water. Half fill the spray tank with clean water and add the required amount of product. Agitate thoroughly before adding the remaining water.


BOOM SPRAYING - Use 30-120 litres water per hectare - Use minimum of 170 litres water per hectare for LINSEED.


AERIAL SPRAYING - Use 10-90 litres water per hectare.


Equipment Maintenance and Usage

Equipment that has been used for this chemical should not be used for the application of other materials to sensitive plants unless it has been cleaned with Spraymate Tank and Equipment Cleaner or well washed out with a 2% solution of cloudy ammonia followed by several clear water rinses.



This product can be tank mixed with Pelican, Metsulfuron methyl, Dicamba, Bromoxynil 200, Flowable Diuron, Cheminova Clopyralid 300, Sertin, Paraquat/Diquat 250, Salvation, Pickout, Unleash and Tribunil. The effectivness of Phosmet, Omethoate, Metasystox and Dimethoate may be reduced by alkaline hydrolysis if tank mixed with this product. For these situations the addition of Spraymate LI-700 is recommended. When tank mixing add the required amount of compatible product (and surfactant is recommended)when the spray tank is nearly full and while continously agitating. If left overnight, agitate thoroughly before spraying.




DO NOT apply if crop or weeds are stressed due to dry or excessively moist conditions.


DO NOT apply if rain is likely within 6 hours.


Resistance Warning


Cheminova MCPA 750 Herbicide is a member of the Phenoxys group of herbicides. Cheminova MCPA 750 has the disruptors of plant cell growth mode of action. For weed resistance management Cheminova MCPA 750 Herbicide is a Group I herbicide. Some naturally occuring weed biotypes resistant to Cheminova MCPA 750 and other disruptors of plant cell growth 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 MCPA 750 or other disruptors of plant cell growth herbicides. Since the occurence 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 MCPA 750 Herbicide to control resistant weeds.


Protection of wildlife, fish, crustaceans and environment

DO NOT contaminate dams, rivers or streams with the product or use container.


Protection of crop, native and other non-target plants

DO NOT spray in high winds.


Drift warning:

DO NOT apply under weather conditions or from spraying equipment that may cause spray to drift onto nearby susceptible crops such as cotton, tobacco, tomatoes, vines, fruit trees, vegetables, legume crops and pastures, oilseed crops and susceptible trees (eg. Kurrajongs, belahs, eucalypts).


Legume Tolerance:

The use of MCPA (Cheminova MCPA 750) is preferred to 2,4-D Amine (Amicide) or Ester (Estericide) in situations where legumes are undersown in the crop.

NB: The tolerance of pasture legumes to applied product can vary with species, variety, growing conditions, stage of growth and companion crop cover. DO NOT spray cereal crop undersown with lucerne as damage may result.


Safety Directions


Harmful if swallowed. Attacks eyes. Will irritate the skin. When opening the container, preparing spray and using the prepared spray wear cotton overalls buttoned to the neck and wrist and a washable hat, elbow-length PVC gloves and googles. If product on skin, immediately wash area with soap and water. If product or spray 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, goggles and contaminated clothing.


Storage 20L only:

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

110L MIni Bulk Returnable Containers - Store in the closed, original container in a dry, cool, well-ventilated area. DO NOT store for prolonged periods in direct sunlight. DO not tamper with the Micro Matic valve ot rhe security seal. Do not contaminate the Envirodrum with water or any other foreign matter.


Disposal 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 below 500mm 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.


110L MIni Bulk Returnable Containers

After each use of the product, please ensure the MicroMatic 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.


Refillable containers (1000L):

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


Precautions Re-entry Period

Hand weeding should not be performed for 7 days after spray application unless workers wear cotton overalls buttoned to the neck and wrist (or equivalent clothing), chemical resistant gloves and footwear.


Product details last updated on 01 Sep 2010


DISCLAIMER: This is not the MCPA 750 HERBICIDE 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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