Winter Special Glyphosate 450 Herbicide 1L | 2 for $50

Glyphosate 450 Herbicide 1L: Systemic Weed Killer Concentrate (Winter Special: 2 for $50)

Grab the winter special: Glyphosate 450 in the handy 1L size, 2 for $50. Winter is prime time to knock back weeds before they seed and spread in spring, and Glyphosate 450 is a concentrated, systemic weed killer that handles a wide range of them, annual and perennial grasses, broadleaf weeds and tough woody plants.

It contains 450 g/L glyphosate and is a Group M (Group 9) herbicide, the same widely used active found in products like Roundup, in a higher-strength 450 formulation. It's absorbed through the foliage and green stems, then moves through the whole plant and into the roots, so it takes out the entire weed rather than just scorching the top. The concentrated formula means a little goes a long way, so two 1L bottles cover a lot of ground.

No Soil Residual

One point that's often misunderstood: glyphosate does not leave a lasting residue in the soil. It's inactivated as soon as it contacts the ground, which means no residual weed prevention, but also that you can replant or sow a treated area once the weeds have died off (the exception being that it shouldn't be used just before transplanting tomato seedlings). If you're after long-term residual weed suppression, glyphosate needs to be tank-mixed with a residual herbicide, or you'd pick a different product for that.

How to Use

Glyphosate 450 mixes readily with clean water. For knapsack or handgun spraying, a general rate is around 8 to 9 mL per litre of water for many common weeds, using more for larger, perennial or woody weeds. Adding a non-ionic wetting agent (around 200 mL per 100 L) improves uptake in high-volume spraying. Always check the label's weeds-controlled tables for the right rate.

Spray when weeds are actively growing and not stressed by frost, drought or waterlogging, this matters in winter, when growth can slow. Avoid spraying if rain is likely within 6 hours, and don't disturb treated weeds for at least 1 day (annuals) or 7 days (perennials) so the herbicide can translocate. Use clean water, as dirty or hard water can reduce its effectiveness. Effects usually show in 3 to 7 days on annual weeds and 2 to 3 weeks on perennials, and can be a little slower in cold weather.

Important

Glyphosate will damage or kill any green plant it contacts, including lawns, gardens and desirable plants. Keep spray and drift off anything you want to keep, and don't apply to weeds in or over water.

Key Features & Benefits

• Winter special: 1L bottles, 2 for $50

• 450 g/L glyphosate, a higher-strength Group M concentrate

• Controls annual, perennial and woody weeds and grasses

• Systemic action that translocates to the roots for a complete kill

• No soil residual, so treated ground can be replanted after weeds die

• Concentrated and economical, a little goes a long way

• Suits agricultural, forestry, industrial and non-crop areas

Frequently Asked Questions

What's the winter special deal?
Glyphosate 450 in the 1L size is available 2 for $50 as a winter special, a good time to knock back weeds before they seed and spread in spring.

What is the active ingredient in Glyphosate 450?
It contains 450 g/L glyphosate, a Group M (EPSP synthase inhibitor) herbicide, in a systemic liquid concentrate.

How much Glyphosate 450 do I use per litre of water?
For knapsack or handgun spraying, a general guide is around 8 to 9 mL per litre of water for common weeds, using more for perennial and woody weeds. Always follow the label rate for your target weed.

What's the difference between glyphosate 360 and 450?
The number is the glyphosate concentration per litre: 360 g/L versus 450 g/L. The 450 is more concentrated, so you use slightly less product for the same amount of active ingredient. Both work the same way.

Does Glyphosate 450 have soil residual?
No. It's inactivated on contact with soil and leaves no residual control, so treated areas can be replanted once the weeds have died (apart from transplanting tomato seedlings). For residual control, tank-mix it with a suitable residual herbicide.

Does it work in winter?
Yes, as long as the weeds are still actively growing. Growth slows in cold weather, so results can be a little slower than in the warmer months, but winter is a good time to control weeds before they seed.

Will it kill my lawn?
Yes. It kills or damages any green plant it contacts, including lawn grass, so it can't selectively remove weeds from a lawn. Use it only where you want to clear all vegetation.