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 APVMA code: 69719/61496

Active Constituent(s): 700 g/kg imazamox 
Registered For:



 Commercial use

 Domestic use

Overview: For the post-emergence control of certain annual grass and broadleafed weeds in field peas, legume-based pastures, lucerne, peanuts and soybeans. 

  SDS (95 KB)

  Label  (120 KB)

General instructions


This product is for early post-emergence weed control in field peas, lucerne, legume-based pastures, soybeans and peanuts. Weeds will either die or remain stunted and will not compete with the crop. For weeds marked with an asterisk in the above table, the level of control will vary significantly depending on factors such as climatic conditions following application, crop vigour, weed seed depth, etc. A spray adjuvant must always be added, as per the ‘Directions for Use’ table, while Spraymate Liase Liquid Herbicide Adjuvant should also be added in situations indicated in the table. Good crop competition is essential for effective weed control.




DO NOT apply to crops or weeds stressed by factors such as root or foliar diseases, water logging, nutrient deficiencies or extremes of temperature and moisture.

DO NOT apply to crops stressed by any previous herbicide treatments.




Harrier 700 WG Herbicide is a water dispersible granule formulation. Part fill the spray tank with water, then with the agitator running, add the required amount of product, then fill the tank with water. When tank mixing this product with other recommended compatible products, first add the other product to the tank and mix thoroughly before adding this product.




For ground application only: Apply with boom equipment in not less than 50 L/ha water using flat fan nozzles. Avoid overlap and do not overspray headlands.

DO NOT apply by aircraft.

DO NOT apply by mister.

Harrier 700 WG Herbicide should be applied a minimum of two hours before rainfall or irrigation.

DO NOT apply Harrier 700 WG more than once per growing season.


Equipment clean-up


Thoroughly flush all spray equipment with water following the use of Harrier 700 WG and before use with other products. Rinse water should NOT be discharged where it will reach streams, water bodies or natural vegetation.




The product is compatible with MCPA, simazine, dimethoate, alpha-cypermethrin, phosmet and omethoate.

DO NOT tank mix with selective post-emergence grass herbicides.

DO NOT apply these herbicides following use of Harrier 700 WG until grasses have resumed active growth. Alternatively, apply the grass herbicide at least one day before using Harrier 700 WG.

DO NOT tank mix with either MCPA Amine or 2,4-D Amine when using in pastures.


FMC Harrier 700 WG Herbicide is a member of the Imidazolinone group of herbicides. The product has the ALS mode of action. For weed resistance management, the product is a Group B herbicide. Some naturally occurring weed biotypes resistant to the product and other Group B herbicides may exist through normal genetic variability in any weed population. The resistant individuals can eventually dominate the population if these herbicides are used repeatedly. These resistant weeds will not be controlled by this product or other Group B herbicides. Since the occurrence of resistant weeds is difficult to detect prior to use, FMC Australasia Pty Ltd accepts no liability for any losses that may result from failure of this product to control resistant weeds.


Follow Crops


Under conditions, such as very dry seasons, which do not favour breakdown of this product, carry-over soil residues can affect susceptible follow crops. As environmental and agronomic factors make it impossible to eliminate all risks associated with this product, rotational crop injury is always possible. Refer to the label for minimum re-cropping intervals for following crops.


Protection of crops, 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.

DO NOT spray within 50m of wetlands or waterways.


Crop safety


This product may cause shortening of plant internodes and may in some circumstances lead to transient crop yellowing but plants will soon recover. This effect is more pronounced under poor growth conditions including conditions of prolonged moisture stress.


Field peas

DO NOT apply to field peas beyond the 4 node stage.

DO NOT apply if frost is forecast.

DO NOT use Harrier 700 WG after simazine (unregistered in field peas) and DO NOT exceed 250 g ac/ha diuron if use of Harrier 700 WG is planned.

DO NOT roll field peas after germination if use of Harrier 700 WG is planned.


Before using this product on field pea varieties other than Bohatyr, Bonzer, Dun, Dundale, Glenroy, Laura, Magnet, Mukta, Santi and Wirrega, contact FMC Australasia Pty Ltd for up-to-date information. DO NOT use on Alma, Excell and Parafield varieties.


Pasture legumes and perennial grasses

Safety to medic varieties may be lower than to clover varieties. Safety to seedling pastures less than one year old may be lower than to older established pastures. Transient biomass reduction and leaf yellowing may occur to pasture legumes and perennial grasses, with good recovery occurring under favourable seasonal conditions.

In some situations a reduction in perennial grass numbers may occur as a result of unfavourable seasonal conditions following application. For up-to-date information on all pasture clover and medic varieties and other temperate pasture species, contact FMC Australasia Pty Ltd before use.



Before using this product on lucerne varieties other than Hunterfield, Sceptre, Sequel, Siriver and Trifecta, contact FMC Australasia Pty Ltd for up-to-date information.




Replanting: If replanting is necessary in a field previously treated with Harrier 700 WG, the field may be replanted to field peas (above listed varieties only), soybeans or peanuts. DO NOT apply a second treatment of Harrier 700 WG.


Protection of wildlife, fish, crustaceans and environment


TOXIC TO AQUATIC FLORA. DO NOT contaminate streams, rivers or waterways with the chemical or used containers.


Storage and disposal


Store in the closed original container in a dry, cool, well-ventilated area out of direct sunlight. 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.


Safety directions


Will irritate the eyes. When opening the container and preparing spray, wear face shield or goggles. If product in eyes, wash it out immediately with water. Wash hands after use. After each day’s use, wash face shield or goggles.


DISCLAIMER: This is not the HARRIER 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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