WEEDPRO 540 Glyphosate 1L | Non-Selective Herbicide

Product Description

WEEDPRO 540 (Surefire WeedPro 540 Bio Herbicide) is a non-selective herbicide containing 540 g/L glyphosate (as the isopropylamine salt), sold in 1L, 5L and 20L packs. The label lists weed control in domestic areas, commercial and industrial areas, public service areas and rights of way, agricultural areas, forestry, horticultural crops, pasture and aquatic areas (fresh and brackish water). Signal word: CAUTION.

It will damage plants you want to keep. The label says this product is non-selective and may severely injure or kill desirable plants if it contacts their foliage, green stems or fruit. Do not spray in conditions that could cause spray to drift onto nearby susceptible plants, adjacent crops or pastures, and do not spray if rain is expected. Do not apply near trees or vines less than 3 years old unless they are protected from spray and spray drift.

How to use it. See the Application Rates tab and our mixing rates guide. The label says effects are usually apparent in 3 to 7 days on annual weeds and up to 14 to 21 days on perennial weeds. Heavy rain within 1 hour of treatment that causes run-off may wash the product off the leaves and retreatment may be necessary. Do not disturb treated weeds by grazing, cultivation or sowing for 1 day after treating annual weeds or 7 days after treating perennial weeds. Do not treat weeds that are stressed by frost, cold, disease, waterlogging, lack of moisture or insect damage. Do not store mixed spray for more than 2 days.

Before you buy. Store, mix and apply only in plastic or plastic-lined stainless steel, aluminium, copper, brass or fibreglass containers: in unlined steel or galvanised containers a highly flammable gas may form. Do not contaminate dams, rivers or watercourses with the undiluted product or used containers. When preparing the product wear elbow-length PVC gloves and a face shield or goggles. The label gives no withholding period when used as directed. Poisons Information Centre: 13 11 26.

Delivery from $17, priced by weight and postcode at checkout.

Additional information

Weight	1.45 kg
Dimensions	32 × 12 × 24 cm
Size	1L

Safety Data Sheets (SDS)

Download SDS

Application Rates

General Mixing Rate:

Mix 7 mL per litre of water.
Purpose:
Controls grasses, broadleaf, and aquatic weeds.

Application Instructions:

Apply when weeds are actively growing.
Ensure complete and even coverage of weed foliage.
Visible results may appear in 3 to 7 days.

Application Rates:

For Annual Weeds:

Boom Sprayer: 1.35–2 L per hectare
Handgun Sprayer: 330–480 mL per 100L water
Knapsack Sprayer: 50–70 mL per 15L water (4–5 mL per 1L water)

For Perennial Weeds:

Boom Sprayer: 2–4 L per hectare
Handgun Sprayer: 470–660 mL per 100L water
Knapsack Sprayer: 70–100 mL per 15L water (5–7 mL per 1L water)

For Aquatic Weeds:

Boom Sprayer: 1.3–6 L per hectare
Handgun Sprayer: 330–860 mL per 100L water
Knapsack Sprayer: 50–130 mL per 15L water (5–7 mL per 1L water)

Important Notes:

Always read and follow the product label for detailed usage directions, safety information, and first aid.

Use only as directed to avoid legal or safety risks and to ensure effectiveness.

Tips for use

WeedPro 540 Herbicide is a non-selective, water-soluble weed killer designed to control grasses and broadleaf weeds in various agricultural and non-agricultural settings. It’s suitable for use before planting crops, except for transplanting tomato seedlings.

Key Usage Notes:

Before Planting Crops: the label lists weed control before sowing any crop. DO NOT use it before transplanting tomato seedlings.
How It Works: The herbicide is absorbed through leaves and stems, moving to the roots. It does not remain active in the soil or control weeds after application. Visible effects take 3–7 days, or up to 2–3 weeks in cool or cloudy weather.

Improving Effectiveness:

Add a high-quality non-ionic surfactant to improve results, especially when using low rates or high water volumes.

Recommended Rates:

200 mL/100 L (1000 g/L surfactant)
250–500 mL/100 L (700 g/L surfactant)
For aquatic weeds, use surfactants approved for water use (e.g., Nemo Aquatic Surfactant).
Avoid adding oils or other chemicals unless specified on the label.

Mixing Instructions:

Fill the spray tank 1/3 to ½ full with clean water and start agitation.
If using ammonium sulphate, mix it first (800 g/100 L spray solution).
Add other herbicides or additives, then WeedPro 540, and mix well.
Add the remaining water and any required surfactant to minimize foaming.
Agitate the solution during application and use it promptly.
Clean all equipment thoroughly after use with clean water.

First Aid:

If exposed, contact a doctor or Poisons Information Centre immediately (Australia: 131 126).
Refer to the Safety Data Sheet (SDS) for detailed safety information.

Active Ingredients

540 g/L GLYPHOSATE (present as the isopropylamine 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.

WEEDPRO 540 Glyphosate 1L – Herbicide for Tough Weed Control 1L

Related Products

Product Description

Additional information

Safety Data Sheets (SDS)

Application Rates

Tips for use

Active Ingredients

Reviews

Frequently asked questions

Do I need a licence to buy or use these?

How do I work out the mixing rate?

Why do the same chemicals come under different brand names?

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WEEDPRO 540 Glyphosate 1L – Herbicide for Tough Weed Control 1L

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Product Description

Additional information

Safety Data Sheets (SDS)

Application Rates

Tips for use

Active Ingredients

Reviews

Frequently asked questions

Do I need a licence to buy or use these?

How do I work out the mixing rate?

Why do the same chemicals come under different brand names?

You May Also Like

Bow Saw Herbicide 500g – Powerful Woody Weed and Brush Control

CONCUSSION 540 Glyphosate Herbicide 1L – Effective Large-Scale Weed Control

FUSILADE FORTE 128EC Herbicide 5L – Fast Weed Control for Gardens & Farms

NUMCHUK QUAD Herbicide 20L – Comprehensive Weed Control for Gardens and Farms

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