GENFARM 2,4 D-B 500 20L 000000010082306
- Active ingredient
- 500g/L 2,4-D
- Controls
- Host: Cereals (wheat, barley, oats), pastures, turf. Target: Broadleaf weeds including clover, dandelion, chickweed, capeweed, and other dicotyledonous weeds in monocu...
Genfarm 2,4 DB Herbicide is a selective post emergent herbicide formulated for the control of a range of broadleaf weeds in legume-based pastures and certain undersown cereal crops. It is used where broadleaf weed control is required while maintaining grass and pasture species, when applied according to the directions for use.
Specifications
• Active Constituent: 500g/L 2,4 DB (dimethylamine salt)
• Pack Size: 20L
• Formulation: Soluble liquid herbicide
• Product Type: Selective post emergent herbicide
• Herbicide Group: Group 4 herbicide class
• Manufacturer: Genfarm
Mode of Action
The active ingredient, 2,4 DB, is a phenoxy herbicide that acts as a synthetic plant growth regulator. After application, it is absorbed by plant leaves and shoots and translocated throughout the weed’s tissues. It disrupts normal growth, causing abnormal cell division and elongation in susceptible weed species, resulting in growth distortion and eventual weed control.
Key Features & Benefits
• Selective Weed Control: Controls broadleaf weeds while generally safe on desirable grasses and pasture species when used as directed.
• Systemic Activity: Moves throughout the plant for effective post emergent control.
• Large Pack Size: 20L container suitable for larger area treatment.
• Versatile Pasture Use: Commonly used in clover, lucerne, medic, and other pasture situations.
Typical Uses
• Lucerne pastures (established and seedling)
• Clover and medic pastures
• Peanut crops
• Cereal crops undersown with lucerne, medic, or clover
• Broadleaf weed control in selective agricultural settings
Safety & Handling
• Physical state: Liquid
• Colour: Brown
• Odour: Faint, like ammonia
• pH: 9.8-10.1
• Density: 1.18g/cm³
• Miscible in water in any proportion
• Non combustible
Personal Protective Equipment (PPE):
• Eye/face protection (e.g., safety goggles)
• Protective gloves (PVC or chemical resistant)
• Suitable respirator in poor ventilation
• Wash thoroughly after handling
Stability & Safety Considerations:
• Stable under normal use conditions
• Avoid contact with strong acids, bases, or heat
• Keep away from incompatible materials
Application Considerations
• Apply when weeds are actively growing for optimal results
• Avoid application on windy days or near sensitive crops
• Follow all label directions for rates, crop stages, and withholding periods
Active Ingredient: 500g/L 2,4-D
Chemical Schedule: S6
Always read the current registered product label before use. Dose rates and withholding periods on this page are provided as a guide only. The registered label supplied with the product is the legal document and takes precedence. If in doubt, contact TGRM on (07) 5482 1692 or the manufacturer directly.
Always read the label and follow directions for use. The registered label is the legal document governing use of this product.
Download the Safety Data Sheet for this product:
Download SDS (PDF)Required for safe handling and storage. Keep on-site per WHS regulations.
Common Questions
What weeds does GENFARM 2,4 D-B control?
GENFARM 2,4 D-B is a selective post emergent herbicide designed to control a range of broadleaf weeds. It works while keeping grasses and pasture species safe when applied as directed. For a complete list of target weeds and which crops it's registered for, always check the product label and registered APVMA information.
What crops and pastures can I use this product on?
GENFARM 2,4 D-B is registered for use in legume-based pastures (including lucerne, clover, and medic) and certain undersown cereal crops. It can also be used in peanut crops. Always consult the product label to confirm your specific situation is covered, or contact TGRM on (07) 5482 1692 for advice.
How should I handle and store this product safely?
GENFARM 2,4 D-B is supplied as a brown liquid. Wear eye protection, chemical-resistant gloves, and use a suitable respirator in poorly ventilated areas. Wash thoroughly after handling. Keep the product away from strong acids, bases, and heat. Always read the Safety Data Sheet (SDS) and product label before use, and follow all handling instructions carefully.
What does the label tell me about application timing and rates?
For application rates, dilution ratios, crop stages, withholding periods, and re-treatment intervals, you must refer to the registered product label. The product works best when weeds are actively growing and should be applied away from windy conditions and sensitive neighbouring crops. If you need guidance on your specific situation, contact TGRM on (07) 5482 1692 or visit 55 Tozer St, Gympie, or speak to your local agronomist or veterinarian.
How does 2,4 DB work in the plant?
2,4 DB is a phenoxy herbicide that acts as a synthetic plant growth regulator. Once absorbed through leaves and shoots, it moves throughout the weed's tissues, disrupting normal growth and causing abnormal cell division and elongation in susceptible broadleaf weeds, which eventually leads to weed control. Grasses and desirable pasture species are generally safe when the product is applied according to directions.
Do you ship this product Australia-wide?
Yes, this product ships Australia-wide via road courier. It is too large or heavy for Australia Post. Call us on (07) 5482 1692 if you have any questions about delivery to your area.
Mainland Australia only — we cannot deliver this product to Tasmania. It is classified as environmentally hazardous (harmful to aquatic life), which means it cannot be carried by sea or air freight. Tasmania and other offshore destinations can only be reached by a sea or air leg, so we are unable to send it there. It travels by road freight to mainland addresses as normal. Call us on (07) 5482 1692 if you are unsure about your address.
Can you deliver this to Tasmania?
No. This product is environmentally hazardous (harmful to aquatic life) and cannot legally be carried on sea or air freight. Because every route to Tasmania involves a sea or air crossing, we can only deliver it within mainland Australia. If you are in Tasmania, please call us on (07) 5482 1692 and we will help you find an alternative product.
Can I Click & Collect from Gympie?
Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.




