Garden Nursery Products
Gold Coast · Est. 1979

GRAZON EXTRA Herbicide 1L – Powerful Weed Control for Gardens and Farms

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Pro-Grade Quality
24hr Dispatch
FARM CHEMICALS · SKU: 038-071

GRAZON EXTRA Herbicide 1L – Powerful Weed Control for Gardens and Farms

★★★★★4.7 (55 Google reviews)·In Stock — Ready to Ship

$105.60 Inc GST

Grazon Extra (Corteva): 300 g/L triclopyr, 100 g/L picloram and 8 g/L aminopyralid, for the weeds named on the label in agricultural non-crop areas, commercial and industrial areas, forests and pastures. Damaging to susceptible plants: read the label before use. Available in 1L, 5L and 20L.

Only 1 left in stock

Fast DispatchWithin 24hrs Australia-wide
Quality GuaranteedPro-grade formulations
1.45 kg32 × 12 × 24 cm
Need Advice?07 5537 4585
Active Ingredient300 g/L Triclopyr, 100 g/L Picloram, 8 g/L Aminopyralid
SKU: 038-071 Category: Brand:

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Product Description

Grazon Extra Herbicide is a Corteva herbicide containing 300 g/L triclopyr (as butoxyethyl ester), 100 g/L picloram and 8 g/L aminopyralid (both as hexyloxypropylamine salt). It comes in 1L, 5L and 20L containers.

The label lists Grazon Extra for the weeds named on it (for example blackberry) in agricultural non-crop areas, commercial and industrial areas, forests, pastures and rights-of-way, and in fallow. Home gardens and lawns are not among the sites listed on the label.

Read the label before use. Grazon Extra is damaging to susceptible plants, including vegetables, fruit trees, flowers, ornamentals and shade trees, during both growing and dormant periods. Picloram and aminopyralid can stay active in the soil for extended periods. Do not apply where spray drift or treated soil could reach desirable plants, or close to their roots, and do not move treated soil to areas where plants are to be grown.

Rates depend on the weed. See the Application Rates tab and our herbicide mixing rates guide for label rates, and follow the label for protective clothing.

Additional information

Weight1.45 kg
Dimensions32 × 12 × 24 cm
Size

1L

Safety Data Sheets (SDS)

Application Rates

Application Rate:
Rates depend on the weed. For blackberry the label gives 350 mL or 500 mL per 100 litres of water (use the higher rate on difficult or damaged plants). Other weeds range from 150 mL upwards per 100 litres. See our mixing rates guide for the label rates for common weeds, and always check the label for your weed.

 

How to Apply:

Spray Coverage: Spray leaves and stems thoroughly until wet, just before the mixture starts dripping. Aim for full coverage, like painting a wall, ensuring even the inner parts of dense weeds are sprayed.

Equipment: Use a spray unit suited to the weed. Corteva only recommends knapsacks or 12 volt sprayers for low-growing weeds and for woody weeds that are not regrowth and are under 60 cm. For larger bushes, use a high volume sprayer or handgun.
Effectiveness: Proper coverage ensures the chemical kills both the weed’s top growth and roots. For larger weeds like mature blackberries, ensure all canes, inside and out, are sprayed.

 

Spray Volume Guide:

For blackberries (1–2 m tall): Use 3000–4000 litres per hectare.

 

Important Notes:

Always read the label for specific instructions, rates, and safety information before use.
Follow all safety, storage, and disposal guidelines provided on the product label.

Tips for use

Equipment Needed
For large infestations (e.g., dense blackberry stands): Use a large motorized pump with a spray gun. You can hire this equipment or engage a professional applicator.

For smaller areas: A knapsack or hand pump spray unit works fine if you achieve good coverage (spray to the point of run-off).
Use a spray unit exclusively for herbicides to avoid contamination.

Additional tools: measuring jug, protective clothing (long sleeves, pants, gloves, hat), safety glasses, or a face shield.

 

Mixing Instructions
Use clean water (e.g., town supply or rainwater tank) for mixing. Avoid hard or alkaline water to maintain effectiveness.
Fill the spray tank halfway with water.
Add Grazon Extra, then fill the rest of the tank with water.
If needed, mix in a spray oil or wetting agent after the tank is full.
Keep the solution agitated and use immediately. If stored, agitate daily and use within 7 days.

 

When to Spray
Target young, actively growing weeds for the best results.
Apply when weeds are not stressed (e.g., from drought, heat, or pest damage).
Avoid spraying if rain is expected within an hour or if leaves are wet.
Do not disturb treated weeds for six months (e.g., by cutting or burning) to ensure the chemical fully takes effect.

 

First Aid
If poisoning occurs, call a doctor or the Poisons Information Centre at 131 126.
Refer to the Safety Data Sheet (SDS) for more details.

Active Ingredients

300 g/L TRICLOPYR present as butoxyethyl ester 100 g/L PICLORAM present as hexyloxypropylamine salt 8 g/L AMINOPYRALID present as hexyloxypropylamine salt

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Frequently asked questions

Do I need a licence to buy or use these?

Most products here are unrestricted and can be bought and used by anyone following the label. A few are restricted chemical products that need a chemical user permit in some states - those are flagged on the product page. If in doubt, check the poison schedule on the label.

How do I work out the mixing rate?

The label gives a rate either per 100 L of water (a concentration) or per hectare or per 100 square metres (an area rate). For a knapsack, work out the area one tank will cover, then scale the per-area rate to that tank volume. Calibrate the sprayer before you start.

Why do the same chemicals come under different brand names?

Once an active ingredient comes off patent, several companies register their own version. A generic glyphosate 360 and a big-brand glyphosate 360 are the same active at the same strength - the difference is formulation quality, surfactant load and price.

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