NAADCO Glyphosate 450 Herbicide 20L – Non-Selective Glyphosate Weed Killer for Annual, Perennial and Woody Weeds

Glyphosate 450 Herbicide for Broad-Spectrum Weed Control

NAADCO Glyphosate 450 is a non-selective, non-residual glyphosate herbicide containing 450g/L glyphosate as the isopropylamine salt. It controls a broad range of annual, perennial, woody and aquatic weeds, and is also registered for use in conservation tillage situations as per the Directions for Use table. This 20 litre glyphosate pack is made by New Australia Agricultural Development Company (NAADCO) for farms, councils, contractors and large properties that spray regularly.

How Glyphosate Weed Killer Works

Glyphosate weed killer is a systemic herbicide. Sprayed onto green leaves, it is absorbed and moved (translocated) through the whole plant, down to the roots, rhizomes and underground parts. It blocks an enzyme plants need to make essential amino acids, so the treated weed stops growing and dies. Because it kills the root system as well as the top growth, it is effective on hard-to-kill perennial weeds that regrow after slashing or mowing. Visible symptoms usually appear within several days, and take longer in cool weather.

Non-Selective and Non-Residual

As a non-selective glyphosate herbicide weed killer, Glyphosate 450 will damage or kill any green plant it contacts, including lawn, garden plants and crops. That makes it ideal for clearing fence lines, driveways, paths, firebreaks and fallow paddocks, but spray carefully around plants you want to keep. It is also non-residual, meaning it does not stay active in the soil, so the treated area can be replanted or sown after the label interval.

Weeds and Situations on the Label

The NAADCO label covers a wide range of weed types and situations, including:

• Annual grasses and broadleaf weeds in fallow, pre-sowing and general weed control situations
• Perennial weeds such as Californian thistle
• Woody weeds and brush, including bracken
• Aquatic weeds such as water couch and water lettuce, where the label permits
• Conservation tillage, as a knockdown before sowing

Rates change with the weed, its growth stage and the situation, so always check the weeds controlled tables on the label before mixing.

A Commercial Weed Killer in a 20 Litre Pack

The 20L pack suits anyone treating large areas, such as farmers, orchardists, councils, landscapers and rural property owners. As a commercial weed killer, it is used through boom sprays, handguns and knapsacks, and the concentrated 450g/L strength means less product is needed per tank than with 360g/L formulations.

Key Features and Benefits

• 450g/L glyphosate (isopropylamine salt) concentrate
• Non-selective systemic herbicide that kills weeds to the root
• Non-residual, with no ongoing soil activity
• Controls annual, perennial, woody and aquatic weeds
• Registered for conservation tillage situations
• Group M herbicide (glycines)
• Bulk 20L pack for farm, council and contractor use

Product Details

• Brand: NAADCO
• Product: Glyphosate 450 Herbicide
• Active constituent: 450g/L glyphosate as the isopropylamine salt
• Herbicide group: M
• Pack size: 20L
• Use: Boom, handgun and knapsack application as per label

How to Mix and Apply

Read the label and attached leaflet before use. As a guide from the NAADCO label, annual weeds are treated at 60 to 80mL per 15L of water in a knapsack, or 400 to 560mL per 100L of water through a handgun, using the lower rate on smaller weeds. Perennial and woody weeds need higher rates, as shown in the label tables. Spray weeds when they are actively growing, wetting the foliage thoroughly but not to runoff. Avoid spraying when rain is expected soon after application, on windy days, or onto stressed weeds. Mix only what you need, use clean water, and flush your sprayer with water after use.

Safe and Responsible Use

• Read the safety directions and wear the protective equipment listed on the label
• Avoid spray drift onto desirable plants, crops and gardens
• Only treat aquatic weeds where the label permits, and do not contaminate waterways beyond label directions
• Store in the original container, out of reach of children

Frequently Asked Questions

How much glyphosate per litre of water?

For annual weeds, the NAADCO label rate of 60 to 80mL per 15L works out to about 4 to 5.3mL per litre of water in a knapsack. Perennial and woody weeds need higher rates, so check the label table for your target weed.

What is Glyphosate 450 used for?

It is used to control annual, perennial, woody and aquatic weeds in fallow, pre-sowing, conservation tillage and general weed control situations such as fence lines, paths and around buildings.

Is glyphosate a non-selective weed killer?

Yes. Glyphosate kills or damages most green plants it touches, so spray only the weeds and protect lawns, gardens and crops from drift.

How long does glyphosate take to work?

Symptoms usually show within several days as weeds yellow and wilt, and full kill of the roots can take one to two weeks or longer in cool weather.

Does glyphosate stay in the soil?

No. NAADCO Glyphosate 450 is a non-residual herbicide, so it does not provide ongoing soil activity. New weeds can germinate after treatment.

Where can I buy 20 litre glyphosate in Sydney?

NAADCO Glyphosate 450 Herbicide 20L is available from BPG Supplies, with local pickup from our Bonnyrigg store in Sydney's south-west and delivery options across Australia shown at checkout.