2,4-D B 500 Machete Herbicide (2,4-DB)

Machete 2,4-D B 500 Herbicide is a selective broadleaf herbicide that can be used with relative safety on seedling clover, seedling lucerne and established lucerne.

Using Machete 2,4-D B 500 Herbicide is a great tool in controlling a range of broadleaf weeds in irrigated and dryland legume based pastures.

Active Ingredient: 2,4-D B present as the Dimethylamine Salt

Similar or Comparable to: Buttress Herbicide Selective Herbicide (Nufarm)

Click For Technical Info & Tips For Use
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2,4-D B 500 Machete Herbicide (2,4-DB) 24DB-500-MACHETE Apparent

Description

2,4-D B 500 Machete Herbicide

Active Ingredient: 2,4-D B present as the Dimethylamine Salt

Similar or Comparable to: Buttress Herbicide Selective Herbicide (Nufarm)

Machete 2,4-D B 500 Herbicide is a selective herbicide that can be used with relative safety on seedling clover, seedling lucerne and established lucerne. Using Machete 2,4-D B 500 Herbicide is a great tool in controlling a range of broadleaf weeds in irrigated and dryland legume based pastures.

2,4-D B 500 Herbicide can be used on;

  • Grass and legume pastures
  • Cereal crops undersown with legume pastures
  • Lucerne based pastures
  • Clover spp including; Arrow leaf, balansa, berseem, persian, shaftal, rose, red, subterranean, white.
  • Medic species including: Barrel, burr (polymorpha), gama, murex, snail,
  • French serradella.

Weeds Controlled in Pasture:

  • Amaranths (Amaranthus spp)
  • Burrs
    • Bathurst (Xanthium spinosum)
    • Californian (Xanthium orientale)
    • Noogoora (Xanthium strumarium)
  • Capeweed (Arctotheca calendula)
  • Charlock (Sinapis arvensis)
  • Dock (seedlings) (Rumex spp)
  • Evening primrose (Oenothera stricta)
  • Fat hen (Chenopodium album)
  • Fumitory (Fumaria spp)
  • Marshmallow (Malva parviflora)
  • Mexican poppy (Argemone spp)
  • Mustards (Sisymbrium spp)
  • Paterson’s curse (Salvation Jane)
  • (Echium plantagineum)
  • Plantains (Flat weeds) (Plantago spp)
  • Prickly lettuce (Lactuca serriola)
  • Shepherd’s purse (Capsella bursapastoris)
  • Sowthistle (Sonchus oleraceus)
  • Spiny emex (Doublegee) (Emex australis)
  • Stinging nettle (Urtica urens)
  • Thistles
    • Saffron (Carthamus lanatus)
    • Slender (Carduus pycnocephalus)
    • Soldier (Picnomon acarna)
    • Spear (Cirsium vulgare)
    • Variegated (Silybum marianum)
  • Turnip weed (Rapistrum rugosum)
  • Wild (Mediterranean) turnip (Brassica tournefortii)
  • Wireweed (Polygonum aviculare)

Registered for use in all states

Pack Sizes: 20-Litre

Registrant: Apparent Pty Ltd (APVMA #: 81800)

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Features & Benefits

  • Contains the active ingredient 2,4-D B.
  • A selective herbicide to control various broadleaf weeds in certain legume crops.
  • Wide safety margin.
  • Registered for use in a wide range of legume crops and pastures.

Directions Of Use

General Pasture Rate: 1L – 3.2L per Ha.  In wheat, barley, oats, triticale or cereal rye undersown with clover, medic or lucerne us 1.3L – 3.2L per Ha.

  • Always use good quality water (rain water is best) as 2,4-D B 500 Herbicide does not perform as well when mixed with poor quality water.
  • Do not use hard water (>500ppm) as weed control will be compromised.
  • Apply to seedling weeds, generally up to the 4 true leaf stage
  • Best applied to clovers/lucerne when they are young (1 leaf to 3 leaf stage) however, it can be used up until the 8 true leaf stage with minimal damage
  • Avoid spraying clovers/medics when they are past the 8 leaf (mature) stage, as damage to leaves may be more permanent
  • Use when weeds are actively growing – avoid stresses such as:
    • insect damage (to either the weeds or the pasture)
    • dry conditions
    • waterlogging (do not flood irrigate 1 week before/after spraying)
    • frosts
    • continuous overcast/cold weather

Converting per Ha Rate to Spot Spraying:
High volume spraying: Add 1/10th of rate on Weed Table to 150 litres of water. Each 150 litres of mix will cover 1000m2 (1/10th ha) eg. if rate in Weed Table is 1.4L, use 140 mL/150L water.
Knapsack Application: Add 1/100th of rate on Weed Table to 10 litres of water. Each 10 litres of mix will cover 100m2 (1/100th ha) eg. if rate in Weed Table is 1.4L, use 14 mL/10L water

Critical Comments:

Ground rig: 110L – 220 L water/ha.

Aerial: Minimum 40 L water/ha. Coarse spray quality.

Grazing WHP: 7 days

Rainfast: 4 hours

Rates Are a General Guide Only. Before Opening, Carefully Read Machete 2,4-D B 500 Herbicide Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.

Host & Pest

Host Pest
Host & Pest
Barley - Undersown(clover,lucerne,medic), Cereal - Undersown With Medic And Clover, Cereal - Undersown With Medic And Clover, Legume Crop, Lucerne - Established, Lucerne Pasture Seedling, Medic Pasture (seedlings-see Label), Oats - Undersown (lucerne,clover,medic), Peanut, Rye - Undersown (lucerne, Clover, Medic), Serradella, Spot Spraying, Sub Clover Pasture (seedlings-see Label), Triticale - Undersown Clover Or Lucerne & Wheat - Undersown (lucerne,clover,medic) Bathurst Burr, Californian Burr, Capeweed, Charlock, Dock - Seedling, Evening Primrose, Fat Hen, Fumitory, Marsh Or Smallflower Mallow, Mexican Poppy, Noogoora Burr, Paterson's Curse, Plantain, Prickly Lettuce, Saffron Thistle, Shepherd's Purse, Slender, Shore Or Sheep Thistle, Soldier Thistle, Sow Or Milk Thistle, Spear Or Black Thistle, Stinging Or Dwarf Nettle, Three Cornered Jack Or Doublegee, Turnip Weed, Variegated Thistle, Wild Or Mediterranean Turnip, Wireweed, Knotweed Or Hogweed

Tips For Use

2,4-D B 500 Herbicide is best applied to small weeds and works better under warmer conditions, usually in spring, summer or early autumn.

In clover, seedling lucerne and medic based pastures a tank mix with Flumetsulam Herbicides (Broadstrike, Broadsword, Broadblade etc) will improve control of certain broadleaf weeds. This mix can also be used in cereals undersown with pasture legumes. In established lucerne, 2,4-D B 500 Herbicide can be mixed with Imazethapyr Herbicides (ie Amaze 700, Kyte & Mainsail 700), Flumetsulam, or Diuron to improve and extend weed control. 

These tank mix options can be used in situations where there:

  • Are a range of weed sizes/ages present
  • Is a heavy population of weeds such as capeweed, shepherd’s purse, ox-tongue, flatweed (dandelion), marshmallow, peppercress, fat hen, nettles (deadnettle or stinging nettle)
  • Are conditions that may become less suitable for 2,4-D B 500 Herbicide to work alone, within two weeks after application (eg-cooler weather forecast)
  • Is a need to use spray grazing (7 to 10 days after application) to assist in controlling larger weeds 
  • Is a benefit from having some residual weed control (when using Mainsail Imazethapyr 700 WG in medic or lucerne)

How 2,4-Db 500 Herbicide Works:

  • 2,4-DB is an inactive form of the phenoxy molecule and after spraying onto weeds, it must first be converted by the weeds into 2,4-D, then finally into the active 2,4-D acid.
  • For effective use weeds must be actively growing when using 2,4-D B 500 Herbicide. If 2,4-D B 500 Herbicide is ‘held’ in the weed for a period of time as the inactive form because the weed is not growing, efficacy will be affected.
  • Plants are usually actively growing when daytime temperatures are above 15 degrees Celsius and there are no frosts.
  • Seedling clovers and medics do not have the ability to convert the 2,4-DB into the 2,4-D acid, however, as they mature, they develop the ability to do this which is why 2,4-D B 500 Herbicide is safest on young pasture species. Damage symptoms may increase after they reach the 8 leaf stage.

Restraints:

  • Do not apply if rain is expected within 4 hours.
  • Do not apply to crop or weeds under stress (not actively growing) due to periods of extreme cold or heat, moisture stress (water logged or drought affected), poor nutrition or previous herbicide treatments as increased levels of crop effect and/or reduced levels of weed control may result.
  • Do not use with hard water (>500 ppm) or water containing suspended matter

General Instructions:

  • Before opening, carefully read Directions for Use, Precautionary Statements, Safety Directions and First Aid Instructions.

Mixing:

  • Mix with the required amount of water in the spray tank or mixing vessel
  • . Apply using a low volume boom spray fitted with fan jets, or by aircraft.
  • Use mains or rain water for mixing. If not available water with a hardness of less than 500 ppm (expressed as calcium carbonate equivalent) can be used but is not preferred.
  • Do not tank mix Ammonium sulphate with Apparent Machete 500 Herbicide in hard water for this may cause nozzle blockages.

Application:

  • Apply using boom or spot spray equipment.
  • Application must be uniform. Nozzle type, output, speed and pressure should be adjusted to deliver a Coarse spray quality (ASAE S 527) in 110 – 220 litres per hectare by ground application and a minimum of 40 litres of water per hectare by aerial application.

Protection of Crops, Native and Other Non-Target Plants:

  • Drift warning: Do not apply under meteorological conditions or from spraying equipment which could be expected to cause spray drift onto nearby susceptible plants, adjacent crops, crop lands or pastures.
  • Avoid spray drift and vapour movement onto susceptible crops such as cotton, tobacco, tomatoes, vines, lupins, fruit trees and ornamentals.

Spray-Grazing Warning (Protection of Livestock): 

  • Some pasture weeds can be controlled by Spray-Grazing a combination of herbicide treatment followed by heavy grazing 7 – 10 days later.
  • Sprayed weeds become more palatable to stock and a higher intake of some weed species after spraying can cause stock deaths and other problems.
  • Increased quantities of poisonous plants may be eaten by stock when the Spray-Grazing technique is being used.
  • Take care if pastures are dominated by Caltrop, Capeweed, Cape Tulip, Paterson’s curse (Salvation Jane) or Variegated Thistle.
  • With Paterson’s Cures preferably graze stock soon destined for slaughter and avoid extended periods of grazing.
  • Avoid grazing with young or breeding stock. Do not graze horses or pigs in Paterson’s curse (Salvation Jane) infested pasture.

Storage:

  • Store in the closed, original container in a cool well-ventilated area.
  • DO NOT store for prolonged periods in direct sunlight. 

Safety Directions:

  • Poisonous if swallowed.
  • May irritate the eyes and skin.
  • This product is alkaline.
  • Avoid contact with the eyes and skin.
  • Do not inhale spray mist.
  • When preparing spray, wear cotton overalls buttoned to the neck and wrist and washable hat, elbow-length PVC gloves and face shield.
  • When using the prepared spray wear cotton overalls buttoned to the neck and wrist and washable hat.
  • If producton skin, immediately wash area with soap and water.
  • After use and before eating, drinking or smoking, wash hands, arms, and face thoroughly with soap and water.
  • After each day’s use, wash gloves, face shield and contaminated clothing.

First Aid:

  • If poisoning occurs, contact a doctor or Poisons Information Centre. Phone Australia: 13 11 26.
  • Additional information is listed in the Safety Data Sheet (SDS).

Withholding Period

Withholding Period Details (WHP):

  • Do not graze for cut for stock feed for 7 days after application

SDS & Technical

Machete 2,4-D B 500 Herbicide Label APVMA Download Pdf
Machete 2,4-D B 500 Herbicide Label Download Pdf
Machete 2,4-D B 500 Herbicide SDS Download Pdf

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