Knockout 450 Herbicide (Glyphosate)

Knockout 450 Herbicide is a concentrated, non-selective glyphosate herbicide that kills many annual and perennial-emerged weeds and plants in various situations. Knockout 450 is used for general weed control in cropping situations, domestic areas (home gardens), commercial, industrial and public service areas, agricultural buildings and other farm situations.

Active Ingredient: Glyphosate Present As The Isopropylamine Salt @ 450g/L

Similar Or Comparable To Roundup Ct (Monsanto), Musta Glyphosate 450 Herbicide (Ozcrop) & Wipe-Out 450 Herbicide (Adama)

Click For Technical Info & Tips For Use
5 out of 5 (9 customers reviews)

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This item is large and requires a courier! Ensure a courier can reach your address.
Don’t worry, shipping is STILL FREE!
Click here for shipping info or give us a call.

Ordering multiple large items? They will be shipped on a skid or pallet to ensure that your items arrive safely and securely. The delivery truck will need to be unloaded with a forklift. If you do not have a forklift, please provide an address where a forklift is present.

Knockout 450 Herbicide (Glyphosate) KNOCKOUT-450 Conquest Crop Protection

Description

Knockout 450 Herbicide (Active Ingredient: Glyphosate Present As The Isopropylamine Salt @ 450g/L)

Similar Or Comparable To Roundup Ct (Monsanto), Musta Glyphosate 450 Herbicide (Ozcrop) & Wipe-Out 450 Herbicide (Adama)

Knockout 450 Herbicide is a concentrated, non-selective glyphosate herbicide that kills many annual and perennial-emerged weeds and plants in various situations. Knockout 450 is used for general weed control in cropping situations, domestic areas (home gardens), commercial, industrial and public service areas, agricultural buildings and other farm situations.

Why choose Knockout 450 Herbicide:

  • Water-soluble, non-residual glyphosate herbicide for non-selective control of many annual and perennial weeds in various situations.
  • It is effective against almost all weed species and rapidly breaks down into natural products in the environment. It has very low toxicity to humans and animals.
  • Used for general weed control in Domestic areas (Home Gardens), Commercial, Industrial and Public Service areas, Agricultural buildings and other farm situations. For specific weeds, brush and woody weeds or unwanted trees, refer to the appropriate Weeds Controlled table listed in the directions for use.
  • Full knock-down impact on virtually all weed species and breaks down into natural products in the environment. Knockout 450 Herbicide can be tank-mixed with a range of other products and is compatible with certain residual herbicides for extended control of annual weeds.
  • It belongs to a group of herbicides called glycines. Knockout 450 acts on the enzyme pathway and works by inhibiting the production of three essential amino acids that are unique to plant life.

What weeds does Knockout 450 Herbicide target:

African lovegrass Button grass Groundsel bush Phalaris Spurge
African turnip weed Calomba daisy Guinea grass Pigweed Stinkgrass
Amaranth Caltrop Hawthorn Plantain Stinking goosefoot
Amsinckia Caltrop Hedge mustard Poa tussock Sub. clover
Annual ground cherry Camel melon Hoary cress Potato weed Summer grass
Annual phalaris Canary grass Indian hedge mustard Prairie grass Sweet Summer grass
Annual ryegrass Capeweed Johnson grass Prickly paddy melon Sweetbriar
Annual Weeds Carpet grass Kangaroo grass Qld bluegrass Thornapple
Artichoke thistle Chickweed Kikuyu Red natal grass Turnip weed
Australian bluebell Chinese scrub Lantana Red-leg grass Variegated thistle
Bamboo Cobbler’s peg Lesser swine cress Rhodes grass Volunteer cereals
Barbed wire grass Cocksfoot Liverseed grass Rope twitch Volunteer lupins
Barley grass Columbus grass Love grass Ryegrass Volunteer sorghum
Barnyard grass Couch Mexican poppy Saffron thistle Volunteer sunflower
Bathurst burr Crofton weed Milk thistle Saffron thistle Water couch
Bent grass Cudweed Mintweed Scotch thistle Wild lettuce
Bitou bush Deadnettle Mistflower Sifton bush Wild mustard
Black (giant) pigweed Dock Native millet Silver grass Wild oats
Black speargrass Double gee New Zealand spinach Silverleaf nightshade Wild turnip
Blackberry Erodium Noogoora burr Skeleton weed Willow
Bladder ketmia Eucalyptus Nutgrass Sorrel Winter grass
Blady grass False castor oilplant Pampas grass Soursob Wireweed
Boggabri weed Flatweed Para grass Sowthistle Yellow Vine
Boneseed Fumitory Paradoxa grass Spear thistle Yorkshire fog
Boxthorn Gooseberry Paspalum Spear thistle
Bracken Gorse Paterson’s curse Spiny burrgrass
Brome grass Ground cherry Perennial phalaris Spiny emex

Knockout 450 Herbicide is absorbed by plant foliage and green stems. It is inactivated in the soil and does not provide residual weed control.  Knockout 450 Herbicide moves through the plant from the point of contact to and into the root system. Initial visible effects on annual weeds take 3-7 days but may not be noticeable for 2 to 3 weeks under cool cloudy conditions or on some perennial weeds.


Knockout 450 Herbicide General Use Rate: 

Annual Weeds:

  • Knapsack: 60 – 80mL per 15L of water (4mL – 5.4mL per 1Litre of Water)
  • Handgun: 400 – 560mL per 100L of water
  • Boom: 1.6 – 2.4L/ha

Perennial Weeds:

  • Knapsack: 60 – 160mL per 15L of water (4mL – 10.7mL per 1Litre of Water)
  • Handgun: 400 – 1000mL per 100L of water
  • Boom: 2.0 – 7.2L/ha

Knockout 450 Herbicide Pack Sizes: 20L, 110L & 1000L  (1000L IBC pricing available upon request – contact us for a quote)

Registrant: Conquest Crop Protection Pty Ltd (APVMA #:62787)

Glyphosate Herbicide Range

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What others are saying

  1. Joanne

    Great product Great price

    Joanne (verified owner)

    Fabulous company to deal with good product at an excellent price Highly recommend

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  2. Richard

    Knockout 450

    Richard (verified owner)

    Great product great price super fast shipping

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  3. Gary Heaydon

    Gary Heaydon (verified owner)

    very good product

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  4. mark

    fantastic company

    mark (verified owner)

    best prices, best sales people, best delivery

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  5. ROB

    Knock out 450

    ROB (verified owner)

    No time to use yet to wet and windy,timely delivery, dropped off at the front door, no problems.

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  6. Rach

    A1 Service and Product

    Rach (verified owner)

    The teams’ communication is fantastic. Service is A1! Product as described (very good). Fantastic price! Thank you so much, Specialist Sales!

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  7. Darren

    Great price & Product

    Darren

    Great price & Value
    Excellent strong chemical.

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  8. Ross

    Good price

    Ross (verified owner)

    Works better than Glyphosate 360. More economical.

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  9. Danny

    Effective poison

    Danny (verified owner)

    Very effective on Boxthorn.

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Features & Benefits

  • Contains the active ingredient Glyphosate.
  • Registered to control over 100 weed species.
  • Glyphosate is the most widely used Herbicide worldwide
  • Replaces mechanical tillage practices to conserve soil moisture and reduce soil erosion.
  • Non-residual knockdown control of emerged weeds.
  • Translocated throughout foliage and kills plant roots.
  • Effective against almost all weed species.
  • Rapidly breaks down to natural products in the environment.
  • Very low toxicity to humans and animals.
  • Compatible with certain residual herbicides for extended control of annual weeds.

Directions Of Use

General Use Rate: 

Annual Weeds:

  • Knapsack: 60 – 80mL per 15L of water (4mL – 5.4mL per 1Litre of Water)
  • Handgun: 400 – 560mL per 100L of water
  • Boom: 1.6 – 2.4L/ha

Perennial Weeds:

  • Knapsack: 60 – 160mL per 15L of water (4mL – 10.7mL per 1Litre of Water)
  • Handgun: 400 – 1000mL per 100L of water
  • Boom: 2.0 – 7.2L/ha

Rates are a general guide only. Before opening, carefully read Knockout 450 Herbicide (Glyphosate) Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.

Questions and answers from customers

    What is the shelf life of Knockout 450 Herbicide?

  1. Q What is the shelf life of Knockout 450 Herbicide?
    Asked by Jim on May 7, 2024 5:42 pm
    Answered by the admin

    Knockout 450 Herbicide does not have a best-before or expiry date. However, the manufacturer recommends that the best practice is to use it within an approximate 5-year period from the date of manufacture. Correct storage away from direct sunlight in the closed, original container in a cool, well-ventilated area will help maximise the product's shelf life.

  2. Can Knockout 450 Herbicide be used near creeks?

  3. Q Can Knockout 450 Herbicide be used near creeks?
    Asked by Andy on December 25, 2023 8:43 am
    Answered by the admin

    Knockout 450 Herbicide is not registered to control aquatic weeds or be used in aquatic situations. It is also recommended not to contaminate dams, rivers or streams with Knockout 450 Herbicide or the used container.

  4. 1. After being mixed with water, how long will it be an effective herbicide? 2. Do the manufacturers add anything to the RTU premixed glyphosate (round up) to make the effectiveness of it last longer?

  5. Q 1. After being mixed with water, how long will it be an effective herbicide? 2. Do the manufactur...... Read more
    Asked by Alexandra on May 4, 2023 5:16 am
    Answered by the admin

    Once a glyphosate concentrate herbicide is mixed with water, it should be used within 24 hours for best results. After this time, the mixture's effectiveness 'may' start to decrease, and the herbicide 'may' become less potent. To the best of our knowledge, no additives can be added to the pre-mixed solutions that extend their shelf life.

  6. Will Knockout 450 Concentrate Herbicide kill bamboo if I cut the stems to almost ground level and paint it on where I've cut with concentrated knock-out? If not, what herbicide and method would you recommend to kill bamboo?

  7. Q Will Knockout 450 Concentrate Herbicide kill bamboo if I cut the stems to almost ground level and...... Read more
    Asked by Alex on October 20, 2022 8:26 pm
    Answered by the admin

    There is  an Australian Pesticides and Veterinary Medicines Authority permit PER11463 registering the use of glyphosate on bamboo as a cut stump method.  Rate of application is 1L per 6L water (Glyphosate 360g/L) - cut stems back to 20cm high and immediately pour herbicide the hollow stem and wet the cut.  Flupropanate is also registered under permit to control bamboo, however is currently unavailable.

  8. Is Knockout 450 Glyphosate Herbicide compatable with Ester 680 Herbicide?

  9. Q Is Knockout 450 Glyphosate Herbicide compatable with Ester 680 Herbicide?
    Asked by colin Protheroe on April 1, 2022 9:09 pm
    Answered by the admin

    2,4-D Ester 680 Herbicide lists on the label that Glyphosate 450 Herbicide is a compatible product that it can mix with it.

  10. What is the dilution ratio for Knockout 450 Herbicide (how many L of this chemical to L of water)?

  11. Q What is the dilution ratio for Knockout 450 Herbicide (how many L of this chemical to L of water)?... Read more
    Asked by Harry on February 1, 2022 12:53 pm
    Answered by the admin

    The General Use Rate for Knockout 450 Herbicide is: 

    Annual Weeds:

    • Knapsack: 60 – 80mL per 15L of water (4mL – 5.4mL per 1Litre of Water)
    • Handgun: 400 – 560mL per 100L of water
    • Boom: 1.6 – 2.4L/ha

    Perennial Weeds:

    • Knapsack: 60 – 160mL per 15L of water (4mL – 10.7mL per 1Litre of Water)
    • Handgun: 400 – 1000mL per 100L of water
    • Boom: 2.0 – 7.2L/ha

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Disclaimer: This information and product advice is not intended to be advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.

Host & Pest

Host Pest
Host & Pest
Almond, Avocado, Banana, Blueberry, Citrus Fruit Or Tree, Custard Apple, Dessert Fig, Duboisia Or Corkwood, Guava, Kiwi Fruit, Lychee, Macadamia, Mango, Monstera Fruit, Olive, Pawpaw, Pecan, Persimmon, Pistachio, Pome Fruit, Raspberry, Stone Fruit, Tea Plantation, Vineyard & Walnut Amaranth Or Amaranthus, Barley Grass, Barnyard Grass Or Water Grass, Brome Grass, Caltrop Or Yellow Vine, Canary Grass, Capeweed, Chickweed, Deadnettle, Liverseed Or Urochloa Grass, Mintweed, Paterson's Curse, Perennial Pigweed, Silvergrass - Vulpia Spp., Spear Or Black Thistle, Thornapple, Three Cornered Jack Or Doublegee, Variegated Thistle, Wild Mustard - Sisymbrium Spp., Wild Oat, Wild Turnip, Winter Grass
Annual Grass, Weed - Seed Set Control, Calomba Daisy Seed Set Control, Capeweed Seed Set Control Annual Ryegrass, Barley Grass, Brome Grass, Calomba Daisy, Capeweed, Silver Grass Or Rat's-tail Fescue
Band Spraying, Pasture Manipulation Barbed Wire Grass, Black Speargrass, Carpet Grass, Kikuyu Grass, Lovegrass, Paspalum, Red Natal Grass, Wire Grasses
Barley - Fallow/pre-plant, Cereal Rye - Fallow/pre-plant, Triticale - Fallow/pre-plant, Wheat - Fallow/pre-plant Annual Ground Cherry, Bladder Ketmia, Camel Or Afghan Melon, Sow Or Milk Thistle, Turnip Weed, Wild Lettuce, Wild Turnip
Domestic And/or Public Area around Buildings commercial & industrial Premises, Dry Drains & Channels, Dry Margins Of Dams, Lakes & Streams, Forestry & Rights Of Way Amaranth Or Amaranthus, Annual Ryegrass, Artichoke Thistle, Barley Grass, Barnyard Or Water Grass, Bent Grass - Agrostis Tenuis, Blady Grass, Brome Grass, Californian Thistle, Caltrop Or Yellow Vine, Canary Grasses, Capeweed, Carpet Grass, Cat's Ear Or Flatweed, Chickweed, Cobbler's Pegs, Cocksfoot, Couch, Cumbungi, Deadnettle, Glyceria Or Reed Sweet Grass, Ground Cherry - Physalis Angulata, Guinea Grass, Hedge Or Wild Mustard, Hoary Cress Or Whiteweed, Johnson Grass, Kangaroo Grass, Kikuyu Grass, Lesser Swinecress Or Bittercress, Liverseed Or Urochloa Grass, Mintweed, Nutgrass, Para Grass, Paradoxa Grass, Paspalum, Paterson's Curse, Perennial Pigweed, Phalaris, Phragmites Or Common Reed-suppression, Pink Fumitory, Plantain, Potato Or Yellow Weed, Prairie Grass, Queensland Bluegrass, Red-leg Grass, Rhodes Grass, Rope Twitch - Suppression, Rush, Saffron Thistle, Silver Grass Or Rat's-tail Fescue, Silverleaf Nightshade, Sorrel, Soursob Or Oxalis, Sow Or Milk Thistle, Spear Or Black Thistle, Spiny Burrgrass Or Gentle Annie, Spurge, St John's Wort, Subterranean Clover, Tall Sedge, Thornapple, Three Cornered Jack Or Doublegee, Variegated Thistle, Volunteer Cereal, Water Couch, Wild Oat, Wild Turnip - Brassica Tournefortii, Winter Grass, Yorkshire Fog Grass
Cotton - Pre Harvest Bathurst Burr, Noogoora Burr, Nutgrass - Seasonal Suppression, Sow Or Milk Thistle, Winter Annual Weeds
Cotton - Shielded Spraying African Turnip Weed, Annual Ground Cherry, Annual Phalaris, Australian Bluebell - W. Gracilis, Barley Grass, Barnyard Grass Or Water Grass, Bladder Ketmia, Boggabri Weed, Button Grass, Caltrop Or Yellow Vine, Camel Or Afghan Melon, Columbus Grass - Seedling, Common Thornapple, Couch, Cudweed, Deadnettle, Fumitory, Giant Or Black Pigweed, Indian Hedge Mustard, Johnson Grass, Liverseed Or Urochloa Grass, Mexican Poppy, Mintweed, Native Millet, New Zealand Spinach, Noogoora Burr, Nutgrass, Pigweed Spp., Saffron Thistle, Sow Or Milk Thistle, Spear Or Black Thistle, Spurge, Stink Grass, Stinking Goosefoot, Summer Grass, Sweet Summer Grass, Turnip Weed, Variegated Thistle, Volunteer Cereal, Volunteer Sorghum, Volunteer Sunflower, Wild Lettuce, Wild Oat, Wild Turnip, Wireweed, Knotweed Or Hogweed
Crop - Weed Control Prior To Sowing, Pasture - Weed Control Prior To Sowing Amsinckia, Annual Phalaris, Annual Ryegrass, Barley Grass, Brome Grass, Calomba Daisy, Capeweed, Dock - Seedling, Fumitory, Paterson's Curse, Phalaris, Saffron Thistle, Scotch Thistle, Silver Grass Or Rat's-tail Fescue, Skeleton Weed - Fully Emerged Rosettes, Sorrel, Soursob Or Oxalis, Spear Or Black Thistle, Subterranean Clover, Three Cornered Jack Or Doublegee, Variegated Thistle, Volunteer Cereal, Volunteer Lupin, Wild Oat, Wild Turnip, Winter Grass
Fallow Or Prior To Seeding A Crop African Turnip Weed, Annual Ground Cherry, Annual Phalaris, Australian Bluebell - W. Stricta, Barley Grass, Barnyard Grass Or Water Grass, Bladder Ketmia, Boggabri Weed, Button Grass, Caltrop Or Yellow Vine, Camel Or Afghan Melon, Columbus Grass - Seedling, Common Thornapple, Couch, Cudweed, Deadnettle, Fumitory, Giant Or Black Pigweed, Indian Hedge Mustard, Johnson Grass, Liverseed Or Urochloa Grass, Mexican Poppy, Mintweed, Native Millet, New Zealand Spinach, Noogoora Burr, Nutgrass, Pigweed Spp., Saffron Thistle, Sow Or Milk Thistle, Spear Or Black Thistle, Spurge, Stink Grass, Stinking Goosefoot, Summer Grass, Sweet Summer Grass, Turnip Weed, Variegated Thistle, Volunteer Cereal, Volunteer Sorghum, Volunteer Sunflower, Wild Lettuce, Wild Oat, Wild Turnip, Wireweed, Knotweed Or Hogweed
Pasture (Bent Grass Infested) - Suppression Annual Weeds - See Label, Browntop Bent
Pasture (Poa Tussock Infested) Annual Weeds - See Label, Poa Tussock - Suppression
Perennial Grass - Seed Head Suppression Browntop Bent
Rice - Direct Drilling Annual Phalaris, Annual Ryegrass, Barley Grass, Burr Medic, Subterranean Clover, Winter Grass
Sorghum Control Sorghum - See Label For Exceptions, Sorghum - Stubble
Sugar Cane - Ratoon Crop Sugar Cane
Weed Control To Start A Fallow Annual Ryegrass, Barley Grass, Brome Grass, Capeweed, Couch, Hedge Or Wild Mustard, Hoary Cress Or Whiteweed, Paterson's Curse, Saffron Thistle, Scotch Thistle, Silvergrass - Vulpia Spp., Soursob Or Oxalis, Spear Or Black Thistle, Volunteer Cereal, Wild Oat, Wild Radish Or Radish Weed, Wild Turnip
Winter Pasture - Prior To Sowing Rice Clover, Curled Dock, Narrowleaf Dock, Paterson's Curse

Tips For Use

General Instructions:

  • Knockout 450 is a non-volatile, non selective, water soluble liquid herbicide with non-selective herbicidal activity. It is absorbed by plant foliage and green stems and moves through the plant from the point of contact to and into the root system. Effects may not be apparent for 3-7 days (annual weeds) or 2 – 3 weeks (perennial weeds) or longer under cool, cloudy conditions.
  • Knockout 450 will control emerged weeds only, and provides no residual weed control. Apply treatments to weeds which have at least one true leaf (broadleaf weeds) or two leaves (grasses) to provide an adequate surface area for herbicide uptake.
  • Knockout 450 may be used prior to sowing any crop (edible or non edible) but not prior to transplanting tomato seedlings.
  • A withholding period for grazing stock is not required. However, it is recommended that grazing of treated plants be delayed for one day after treatment of annual weeds, or 7 days of perennial weeds are present, to ensure absorption of Knockout 450 . Certain plants (eg. Soursob, variegated thistle) may be naturally toxic to stock. Where known toxic plants are present, do not allow stock to graze until complete browning of treated plants has occurred.
  • Weeds should be actively growing at the time of treatment. Do not treat weeds under poor growing or dormant conditions (such as occur in drought, water logging, disease, insect damage or following frosts) as reduced weed control may result. Reduced results may also occur when treating weeds heavily covered with dust or silt. Prior herbicide application may also induce stress in weeds.
  • Rainfall occurring up to 6 hours after application may reduce effectiveness. Heavy rainfall within 2 hours after application may wash the chemical off the foliage and a repeat treatment may be required. Delay treatment of plants wet with dew or rain, if water droplets run off when plants are disturbed.
  • Avoid contact with foliage, green stems or fruit of crops, desirable plants and trees, since severe injury or destruction may result.

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).

Withholding Period

Withholding Period Details (WHP): 

  • Not required when used as directed.
  • A withholding period for grazing stock is not required.  However, it is recommended that grazing of treated plants be delayed for one day after treatment of annual weeds, or 7 days of perennial weeds are present, to ensure absorption of Knockout 450.  Certain plants (eg. Soursob, variegated thistle) may be naturally toxic to stock. Where known toxic plants are present, do not allow stock to graze until complete browning of treated plants has occurred.

SDS & Technical

Knockout 450 Herbicide Label (APVMA) Download Pdf
Knockout 450 Herbicide Label Download Pdf
Knockout 450 Herbicide SDS Download Pdf
Glyphosate - Facts v Myths Brochure Download Pdf

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