Grazon Extra Herbicide (Triclopyr, Picloram & Aminopyralid)

Grazon Extra is the premium control option for foliar applications on hard-to-kill noxious and woody weeds. It contains three active ingredients, offering control of the broadest list of weeds in a single product on the market. Grazon Extra offers outstanding knockdown and residual weed control and is registered to control of a range of environmental, noxious woody and herbaceous weeds.  

Active Ingredients: Picloram @ 100 g/L, Triclopyr @ 300 g/L & Aminopyralid @ 8 g/L

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Grazon Extra Herbicide (Triclopyr, Picloram & Aminopyralid) GRAZON DOW Agrosciences

Description

Grazon Extra Herbicide

Active Ingredients: Picloram @ 100 g/L, Triclopyr @ 300 g/L & Aminopyralid @ 8 g/L

Grazon Extra Herbicide is the premium control option for foliar applications on hard-to-kill noxious and woody weeds. It contains three active ingredients, offering control of the broadest list of weeds in a single product on the market. Grazon Extra offers outstanding knockdown and residual weed control.

  • Grazon Extra is registered to control a range of environmental, noxious woody and herbaceous weeds.  
  • Grazon Extra moves quickly to the tips of growing shoots and roots where the active ingredients disrupt plant growth. Exceptional results include rapid “brown-out”.  
  • Grazon Extra is the premium option for foliar spraying of tough-to-kill woody weeds and many noxious herbaceous weeds.
  • The ingredients in Grazon Extra Herbicide remain active in the soil and prevent seeds of the target woody plants and secondary weeds from germinating for many months after application (in some cases up to two years).
  • Grazon Extra controls the target weeds without harming pasture grasses.
  • Grazon Extra Herbicide offers control of the broadest list of weeds in a single product on the market.

Major Weeds Controlled:

African boxthorn Horehound
Angophora spp. Lantana (Lantana camara) (Lantana montevidensis)
Australian blackthorn Lion’s tail (Leonatis nepetifolia)
Banksia spp. Limebush
Biddy bush Manuka
Blackberry Mesquite (Prosopis spp.)
Blue heliotrope Prosopis velutina
Brooms (Cape, English, flax leaf, montpellier) Milfoil (Yarrow)
Camphor Laurel Mistflower
Capeweed Mother-of-millions
Casuarina spp. Paddy’s lucerne
Chinee apple Parkinsonia
Cockspur thorn Paterson’s curse
Common sensitive plant Prickly pear (common) Smooth tree pear
Crofton weed Rubber vine
Eastern cotton bush (Maireana microphylla) Siam weed
Eucalyptus spp. Sicklepod
Fireweed Spear thistle
Galenia St John’s wort
Giant bramble Sweet briar
Gorse Tobacco weed
Groundsel bush (Baccharis halimifolia) Wattle (Acacia spp.) (except corkwood wattle)
Green cestrum Wild Rosemary (Cassinia laevis)
Hawthorn Wild tobacco tree

Pack Sizes: 1L, 5L & 20L

Registrant: Dow Agrosciences Australia Limited. (APVMA #:60830)

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Features & Benefits

  • Grazon Extra includes the active ingredients Picloram and Triclopyr used in Grazon DS, plus the new ingredient Aminopyralid.’  
  • ‘Extra’ Tough on Noxious Weeds & Woody Weeds.  
  • Grazon Extra is registered to control of a range of environmental, noxious woody and herbaceous weeds.  
  • Grazon Extra moves quickly to the tips of growing shoots and roots where the active ingredients disrupt plant growth. Exceptional results include rapid “brown-out”.  
  • Is the premium option for foliar spraying of tough-to-kill woody weeds and many noxious herbaceous weeds.
  • Acts on both foliage and roots to provide rapid brownout of leaves, dry-down of stems and destruction of the root mass to prevent regrowth.
  • Leaf brownout and distortion of stem tips will normally be obvious within a week of application.
  • Ingredients remain active in the soil and prevent seeds of the target woody plants and secondary weeds from germinating for many months after application (in some cases up to two years).
  • Controls the target weeds without harming pasture grasses.
  • Grazon Extra offers control of the broadest list of weeds in a single product on the market.

Directions Of Use

Application Rate:

  • For most weeds the rate of Grazon Extra to apply is between 350 and 500 mL per 100 litres of water.
  • Always check the label for the correct rate.

Application Methods:

  • Apply as a foliar spot spray to completely wet all leaves and stems. Coverage should be to the point of run-off in that the chemical mix is just beginning to drip from the leaves once the spraying is completed. Think of painting a wall and use that motion in your spray action to achieve full coverage of the foliage, then use a more directed stream to thoroughly treat the stems and canes.
  • This type of application is called high volume spraying as you are applying a large amount of spray mixture to the target weeds. Provided that good coverage of the target weed is possible, high volume spraying can be completed using a variety of equipment – from a small hand pump unit to a knapsack sprayer through to a large motorised pump and handgun unit.
  • With a foliar spray you are looking to capture enough chemical on the foliage to kill not only the above-ground portion of the weed but all of the root mass as well, so good coverage is essential. If you are spraying very large weeds like blackberries that are several years old, ensure that canes on the inside as well as the outside of the foliage mass receive direct contact with the applied spray. 
  • As a guide, one hectare of blackberries 1–2 metres in height will typically require a spray volume of 3000–4000 litres to be thoroughly covered, whilst the same area of a small herbaceous weed such as ragwort will require 500–1000 litres. 
  • Always refer to the label & directions before using, as some conditions apply to certain weeds, areas of use etc.  Further details of use can be found in the Direction of Use section on the Product Label.

Rates are a general guide only. Before opening, carefully read Grazon Extra Herbicide Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.

Host Pest
Host & Pest
Agricultural Non-crop Areas, Commercial/industrial Land, Forest, Pasture & Rights Of Way African Boxthorn, Angophora, Australian Or Native Blackthorn, Banksia, Blackberry In Assoc With Other Weed (see, Blue Heliotrope Or Blue Top, Camphor Laurel, Cape Or Montpellier Broom, Capeweed, Casuarina Or Sheoak, Chilean Cestrum, Chinee Apple, Chinese Scrub, Cockspur Thorn, Common Prickly Pear, Common Sensitive Plant, Common Sida, Crofton Weed, Eastern Cotton Bush, English Broom, Eucalyptus, Fireweed, Flax Leaf Broom, Furze Or Gorse, Galenia, Giant Bramble, Groundsel Bush, Hawthorn - Less Than 2 M Tall, Horehound, Japanese Sunflower, Lantana - Lantana Camara, Lantana - Lantana Montevidensis, Limebush, Lion Tail, Manuka, Mesquite, Mesquite - Prosopis Velutina, Milfoil Or Yarrow, Mistflower Or Creeping Crofton Weed, Mother-of-millions, Parkinsonia, Paterson's Curse, Rubber Vine - Not Infected With Rust, Siam Weed, Sickle Pod, Smooth Tree Or Drooping Prickly Pear, Spear Or Black Thistle, St John's Wort, Sweet Briar Or Wild Rose, Tobacco Weed, Wattle - Except Corkwood Wattle, Wild Rosemary, Wild Tobacco Tree
Fallow Land Bitter Bark Or Quinine Tree, Blackberry Nightshade - Suppression, Camel Or Afghan Melon, Cowvine, Cucumber Melon, Lucerne - Established, Paddy Melon, Polymeria, Sow Or Milk Thistle

Equipment Required for Application:

Depending on the Size of the Job at Hand:

  • Large dense infestations (for example, large, old dense blackberry stands) are best treated with a large motorised pump and handgun unit. This equipment can often be hired or a contract spray applicator can be engaged.
  • However, a suitable knapsack or hand pump spray unit will suffice in many situations, provided that good coverage can be achieved (to the point of run-off).
  • Ideally use a spray unit that is dedicated for application of herbicides only (to avoid cross contamination).
  • Measuring jug.
  • Cotton overalls or long-sleeved shirt and long pants.
  • Washable hat.
  • Elbow-length PVC gloves.
  • Safety glasses or face shield.

Correct Mixing Procedure:

  • If possible, mix Grazon Extra with clean water sourced from town supply or a rainwater tank, although any source of clean water may be used. Avoid using water that is particularly ‘hard’ or strongly alkaline as that may reduce herbicide efficacy. Half fill the spray tank with water then add the Grazon Extra before adding the remainder of the water. If the product label requires the addition of a spray oil, penetrant or wetting agent to assist in control your particular weed population, mix in once the spray tank is full. 
  • Once mixed, the spray solution should ideally be kept agitated and used immediately. However, if circumstances conspire to interrupt spraying, a mixture of Grazon Extra and water can be stored for up to seven days, provided that it is intermittently agitated each day, and well agitated again before use.

Application Timing for Best Results:

  • In general, smaller weeds are easier to control than large ones. 
  • Grazon Extra is most effective when applied to weeds that are not stressed due to lack of moisture, excessive heat, insect or pathogen (such as rust) damage, etc. and are actively growing. Actively growing weeds will draw the chemical into the vascular system and transport it through the stems and down to the roots to ensure maximum efficacy.
  • Grazon Extra needs to penetrate into the leaves of treated weeds before any rainfall occurs so do not make applications if rain is possible before the spray is completely dry – usually one hour. Similarly, avoid application if the leaves are wet from rainfall or dew.
  • Once the weeds have been sprayed leave them undisturbed so that the chemical is able to move throughout the leaves, stems and roots and provide complete kill. Disturbing the weeds by slashing, burning, mulching, etc. before the chemical is fully distributed will compromise the control achieved. We recommend that blackberries and other woody weeds not be disturbed for six months after spraying to maximise the performance of Grazon Extra.

First Aid:

  • If poisoning occurs contact a doctor or Poisons Information Centre. Phone Australia 131 126.
  • For further information, refer to the Safety Data Sheet (SDS).

Woody Weeds – Getting started with Grazon Extra herbicide


Spot Spraying with Grazon Extra


Spot spraying Tiger Pear with Grazon Extra

Withholding Period Details (WHP):

  • Pasture: Cutting or grazing pastures for stock food: Not required when used as directed.
  • Livestock destined for export markets: The grazing withholding period only applies to stock slaughtered for the domestic market. Some export markets apply different standards. To meet these standards, ensure that in addition to complying with the grazing withholding period, the export slaughter interval is observed before stock are sold or slaughtered.
  • Export Slaughter Interval (ESI) – 3 days
  • Livestock that has been grazed on or fed treated crops within 42 days of application should be placed on clean feed for 3 days prior to slaughter.
  • Export Grazing Interval (EGI) – 42 days:
  • Livestock that has been grazing on treated crops or pasture should not be sold for export slaughter for 42 days (6 weeks) after application of chemical product, unless the export slaughter interval has been observed. When grazon extra is used as directed and the above withholding periods and/or export intervals are observed, treated grain and livestock commodities are considered acceptable for export. However, export requirements are subject to change. Consult your exporter for updated information about specific market requirements
Grazon Extra Herbicide Label (Text) Download Pdf
Grazon Extra Herbicide Label Download Pdf
Grazon Extra Herbicide SDS Download Pdf

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