Adama Bronco 400 20L. Bromoxynil

Bronco 400 Herbicide is a selective broadleaf herbicide containing 400 g/L Bromoxynil, designed for use in cereals, linseed, clover, lucerne pastures, turf, fallow, and non-crop areas. It is a Group 6 herbicide that works by inhibiting photosynthesis in target weeds. The product effectively controls a wide range of broadleaf weeds, including capeweed, wild radish, turnip weed, wireweed, and thistles. It is rainfast within three hours and can be applied via boom spraying, aerial spraying, or knapsack application. With a withholding period of 8 weeks for grazing and stock food, Bronco 400 ensures effective weed control when applied at the correct growth stage and recommended rates.

400 g/L BROMOXYNIL present as the N-OCTANOYL ESTER

Application Information and Rates

Application Methods

Bronco 400 Herbicide can be applied using boom spraying, aerial application, and knapsack spraying. It is registered for use in cereals, linseed, clover, lucerne pastures, lotus, turf, fallow, and non-crop areas such as roadsides and rights-of-way.

Restraints

Do not apply using mister machines.
Do not apply if crops or weeds are stressed due to dry or excessively wet conditions.
Do not apply to diseased or frost-affected crops or turf, or if frost is imminent.
Do not apply if rain is expected within three hours.
Do not apply to lucerne crops, clover-based pastures, or turf in temperatures above 20°C.
Do not apply with smaller than a coarse spray droplet size category.

Spray Drift Restraints

Do not allow bystanders to come into contact with the spray cloud.
Do not apply if wind speed is outside 3 to 20 km/h.
Do not apply if hazardous surface temperature inversion conditions exist.

Crop Stages for Application

Wheat, barley, cereal rye, oats, and triticale - Apply from the three-leaf stage to fully tillered stage (Z13-30).
Linseed - Apply when plants are between 50 to 150 mm high.
Lucerne and clover - Apply after seedlings have developed at least one trifoliate leaf or before regrowth reaches 150 mm in established stands.
Lotus - Apply at least four weeks after sowing when seedlings have two to six true leaves.

Application Rates for Boom Spraying

For wheat, barley, cereal rye, oats, and triticale, apply between 50 to 200 L of water per hectare.
For linseed, apply a minimum of 220 L of water per hectare.
For turf applications, apply 3.0 L per 500 L of water per hectare.
For knapsack spraying, mix 30 mL per 100 square meters in 10 to 15 L of water.

Application Rates for Aerial Spraying

Apply a minimum of 22 L of water per hectare.
Use appropriate droplet sizes and avoid spraying under conditions that may lead to drift.

Withholding Periods

Do not graze treated crops or cut for stock food for 8 weeks after application.
No withholding period is required for crop harvest when used as directed.

Mixing Instructions

Fill the spray tank at least 70 percent full with water and start agitation.
Add products in this order: wettable powders, water-dispersible granules, suspension concentrates, emulsifiable concentrates, then soluble liquids.

Compatibility

Compatible with Adama 2,4-D Amine 625, Adama MCPA 750, and diclofop-methyl for ryegrass and wild oat control.
Do not mix with 2,4-D or MCPA if the crop is undersown with lucerne, clover, or medics.

Weeds Controlled

Bronco 400 Herbicide is effective in controlling a variety of broadleaf weeds in cereals, linseed, clover, lucerne pastures, turf, fallow, and non-crop areas. Below are the weeds controlled, categorized by weed type, along with their scientific names.

Broadleaf Weeds

Amsinckia - Amsinckia spp.
Capeweed - Arctotheca calendula
Chamomile - Matricaria matricarioides
Common Peppercress - Lepidium africanum
Corn Gromwell - Buglossoides arvensis
Fat Hen - Chenopodium album
Field Madder - Sherardia arvensis
Lesser Swinecress - Coronopus didymus
Mountain Sorrel - Oxalis acetosella
Purple Calandrinia - Calandrinia menziesii
Saffron Thistle - Carthamus lanatus
Shepherd’s Purse - Capsella bursa-pastoris
Tree Hogweed - Polygonum patulum
Turnip Weed - Rapistrum rugosum
Wild Radish - Raphanus raphanistrum
Wild Mustard - Sisymbrium spp.
Wild Turnip - Brassica tournefortii
Wireweed - Polygonum aviculare

Vining and Climbing Weeds

Black Bindweed - Fallopia convolvulus
Three-Horned Bedstraw - Galium tricornutum

Thistles and Spiny Weeds

Three-Cornered Jack (Doublegee) - Emex australis
Variegated Thistle - Silybum marianum

Poisonous and Noxious Weeds

Paterson’s Curse - Echium plantagineum
Mexican Poppy - Argemone ochroleuca
Fumitories - Fumaria spp.
Pheasant’s Eye - Adonis microcarpa
Fireweed - Senecio spp.

Herbicide Label Summary

APVMA Approval No: 80801/RV2024

Product Name: Bronco 400 Herbicide
Active Constituent: 400 g/L Bromoxynil (present as the N-Octanoyl Ester)
Solvent: 427 g/L Liquid Hydrocarbon (Formulation A) or 456 g/L Liquid Hydrocarbon (Formulation B)
Herbicide Group: Group 6 Herbicide
Formulation Type: Emulsifiable Concentrate (EC)
Registered Use: Control of broadleaf weeds in cereals, linseed, clover, lucerne, turf, fallow, and non-crop situations

Poison and Safety Warnings

Dangerous Poison
Keep out of reach of children
Read safety directions before opening or using

Directions for Use

Restraints

Do not apply using mister machines.
Do not apply if crops or weeds are stressed due to dry or excessively wet conditions.
Do not apply to diseased or frost-affected crops or turf, or if frost is imminent.
Do not apply when rain is expected within 3 hours.
Do not apply to lucerne crops, clover-based pastures, or turf in temperatures above 20°C.
Do not apply with smaller than a coarse spray droplet size category.

Spray Drift Restraints

Do not allow bystanders to come into contact with the spray cloud.
Do not apply if wind speed is outside 3 to 20 km/h.
Do not apply if hazardous surface temperature inversion conditions exist.

Crops and Situations

Approved Crops: Wheat, barley, cereal rye, oats, triticale, linseed, clover, lucerne pastures, lotus seed and forage crops, turf
Non-Crop Areas: Fallow, roadsides, and rights-of-way

Weeds Controlled

Amsinckia - Amsinckia spp.
Black Bindweed - Fallopia convolvulus
Capeweed - Arctotheca calendula
Chamomile - Matricaria matricarioides
Common Peppercress - Lepidium africanum
Corn Gromwell - Buglossoides arvensis
Fat Hen - Chenopodium album
Field Madder - Sherardia arvensis
Lesser Swinecress - Coronopus didymus
Mountain Sorrel - Oxalis acetosella
Purple Calandrinia - Calandrinia menziesii
Saffron Thistle - Carthamus lanatus
Shepherd’s Purse - Capsella bursa-pastoris
Three-Horned Bedstraw - Gallium tricornutum
Tree Hogweed - Polygonum patulum
Variegated Thistle - Silybum marianum
Mexican Poppy - Argemone ochroleuca
Three-cornered Jack - Emex australis
Turnip Weed - Rapistrum rugosum
Wild Radish - Raphanus raphanistrum
Wild Mustard - Sisymbrium spp.
Wild Turnip - Brassica tournefortii
Wireweed - Polygonum aviculare
Paterson’s Curse - Echium plantagineum
Fumitories - Fumaria spp.
Pheasant’s Eye - Adonis microcarpa
Fireweed - Senecio spp.

Application Information and Rates

Crop Stage

Wheat, barley, cereal rye, oats, and triticale: Apply from 3-leaf to fully tillered stage (Z13-30).
Linseed: Apply when plants are 50-150 mm high.
Lucerne and clover: Apply after seedlings have one trifoliate leaf or before 150 mm regrowth in established stands.
Lotus: Apply at least 4 weeks after sowing when seedlings have 2-6 true leaves.

Application Methods

Boom spraying: Use a minimum of 50-200 L/ha (WA: 50-100 L/ha).
Aerial application: Minimum of 22 L/ha.
Turf: 3.0 L per 500 L of water per hectare or 30 mL per 100 m² with knapsack spraying.

Withholding Periods

Not required for crop harvest when used as directed.
Do not graze treated crops or cut for stock food for 8 weeks after application.

General Instructions

Mixing Instructions

Fill the spray tank at least 70% full with water and start agitation.
Add products in this order: wettable powders, water-dispersible granules, suspension concentrates, emulsifiable concentrates, then soluble liquids.

Compatibility

Compatible with Adama 2,4-D Amine 625, Adama MCPA 750, and diclofop-methyl for ryegrass and wild oat control.
Do not mix with 2,4-D or MCPA if undersown with lucerne, clover, or medics.

Resistant Weeds Warning

Bronco 400 is a Group 6 herbicide (Photosystem II inhibitor).
Some naturally resistant weed biotypes may exist and could dominate if the product is used repeatedly.

Safety and Protection

Re-Entry Period

Do not enter treated areas until the spray has dried unless wearing protective clothing.

Protection of Crops and Non-Target Plants

Do not spray under conditions that may cause drift onto susceptible crops.
Application in temperatures above 20°C may cause damage to seedlings and established plants.

Protection of Livestock

Low hazard to bees; may be applied as per directions.

Protection of Wildlife and Environment

Dangerous to fish; do not contaminate streams, rivers, or watercourses.

Storage and Disposal

Store in a locked area away from children, animals, food, and feedstuffs.
Do not store for prolonged periods in direct sunlight.
Triple rinse containers before disposal or return to designated collection points.
Large refillable containers must be returned to the supplier.

Safety Directions

Poisonous if inhaled or swallowed.
May irritate the eyes and skin; avoid contact and inhalation of spray mist.
Wear protective gloves and face shield when preparing the spray.
Wash hands, arms, and face after handling.

First Aid

If poisoning occurs, contact a doctor or Poisons Information Centre (Australia: 13 11 26).
If swallowed, do not induce vomiting—give a glass of water.

Additional Information

SDS is available at adama.com or by calling 1800 423 262.
Manufacturer provides no warranty on suitability beyond label directions.

• Label File
• SDS File

Greenway Weed Solutions has a distribution centre in QLD only. All orders, Australia-wide will be shipped from this location.

Shipping is free on all online orders. Bulk purchase shipping rates are determined by total order weight and delivery location.

Pickups are available from the QLD warehouse. Updates to product availability in other Australian warehouses are upcoming.