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FireHawk® Bioherbicide Super Concentrate is a patented, non-selective contact bioherbicide for fast burndown of annual and perennial broadleaf weeds and grasses across agricultural, horticultural, amenity, and non-crop situations. No withholding period when used as directed.

Active Constituent: 777 g/L nonanoic acid, a fatty acid that occurs naturally in many plants including geraniums and pelargonium oil.

APVMA Approval No. 95387/145440. For Professional Use Only. Allowed Input for Organic and Regenerative Systems (Southern Cross Certified, Cert. No. 24001).

Key Benefits

Fast Visible Burndown

Browning and wilting visible within hours of application. Nonanoic acid contact action disrupts plant cell membranes, causing rapid tissue dehydration.

No Withholding Period

No withholding period when used as directed. No downtime between treatment and getting on with the job.

Patented Technology

APVMA-registered patented bio technology delivers nonanoic acid efficiently to the leaf surface. Every droplet works harder.

Not Translocated

Contact-based action affects only the plant tissue coated by the spray. Suitable for rotation with other weed control approaches as part of an integrated weed management program.

The Contact BioSolutions Mission

To deliver nature-inspired, market-leading bioherbicide solutions, harnessing technology to meet the growing demand for considered land management. We work with farmers, families, and communities to provide effective alternatives to conventional herbicide programs and contribute to the long-term resilience of agricultural ecosystems.

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Where to Use in Orchards & Vineyards
  • In-row and between-row weed control
  • Under-vine and under-tree applications
  • Dormant season weed control
  • Sucker control

Applications must be directed to avoid contact with desirable plants. FireHawk Bioherbicide is a contact, non-selective herbicide that affects only green plant tissue coated by the spray solution.

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Why Growers Choose FireHawk Super Concentrate
Before
After
Before
After
Before
After
Before
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FireHawk Bioherbicide Super Concentrate fits a whole-system approach, not just a single season. It supports long-term rotation planning, flexible resistance management strategies, and precise weed knock-down.

Grower Realities

  • Perennial crops demand long-term thinking, not one-season fixes
  • Weed pressure must be managed without compromising future planting plans
  • Herbicide-resistant weed management requires diversified approaches
  • Clean rows matter for airflow, harvest efficiency, and vine or tree health
  • Operational windows are tight, and timing matters

How FireHawk Supports These Systems:

  • Contact-only activity supports precise placement
  • No residual activity in the soil allows flexibility in crop and cover-crop planning
  • Fast visual response supports timely operational decisions
  • Fits into Integrated Weed Management (IWM) and herbicide-resistance programs
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How FireHawk Bioherbicide Super Concentrate Works

FireHawk Bioherbicide Super Concentrate uses 777 g/L nonanoic acid as its active constituent. Nonanoic acid is a fatty acid that occurs naturally in many plants. When applied to actively growing weeds, it disrupts plant cell membranes on contact, resulting in rapid desiccation of green plant tissue.

Because FireHawk is not translocated, it affects only the plant parts coated by the spray solution. The contact-based, non-systemic action is limited to treated plant tissue. In some cases, follow-up applications may be required to address regrowth or newly emerged weeds.

Spray coverage matters

Use a full-cone nozzle to achieve even spray distribution. Apply FireHawk Bioherbicide so the entire weed is thoroughly wet, covering all green leaf surfaces uniformly. Because FireHawk works on contact, only the plant tissue coated by the spray will be affected. Complete coverage is key for consistent results.

Keep it mixed

FireHawk Bioherbicide is an emulsifiable concentrate. Shake well before use and maintain agitation during application to keep the solution properly mixed. For sprayers without continuous agitation, stop periodically to re-mix. For larger tanks, mechanical agitation is required.

How to Use

Managing weeds as part of a living system. At Contact BioSolutions, we believe effective weed control should support, not constrain, the way growers manage their land over time. In regenerative and stewardship-focused systems, flexibility matters: the ability to adapt planting plans, integrate cover crops, and respond to seasonal variability without unintended carryover.

FireHawk Bioherbicide is designed to give growers precise control of emerged weeds while preserving future options. Used as directed, it fits into integrated weed management approaches that emphasise timing, placement, equipment selection, and respect for the complexity of agricultural ecosystems.

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Sized for Commercial Production

FireHawk Bioherbicide Super Concentrate is available in formats to meet your operation.

Super Concentrate - 5L

Makes up to 250L of spray mixture

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Super Concentrate - 20L

Makes up to 1000L of spray mixture

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Super Concentrate - 200L Drum

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Super Concentrate - 1000L IBC

Downloads & Resources
APVMA-Approved Label APVMA-Approved Label Safety Data Sheet (SDS) Safety Data Sheet (SDS)
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FireHawk Bioherbicide Super Concentrate

Every orchard, vineyard, and farm operates within its own constraints. Crop type and age, equipment, climate, and long-term goals. FireHawk product specialists work directly with growers to help tailor application timing, placement strategies, and integration into existing weed management programs, always in accordance with the label.

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FAQs

FireHawk is a contact, non‑selective, broad‑spectrum, foliar‑applied herbicide. It only affects plant tissue that is directly coated with spray solution and is not translocated.

  • Apply to actively growing, young, succulent weeds
  • Avoid applications when weeds are wet
  • Avoid applications if rainfall or irrigation is expected within 2 hours
  • Cool weather slows activity
  • Boom equipment: 75–100 GPA
  • Spot/handheld: ~100 GPA equivalent
  • Minimum: 20 GPA for foliar applications
  • 1.5–3.2%: annual weeds, mosses
  • 1.5–4.8%: perennial weeds, sucker growth
  • 3.2–4.8%: maximum burndown, edging, woody vegetation

Diluted product:

  • Long‑sleeved shirt, long pants
  • Shoes + socks

Concentrated product:

  • Coveralls
  • Chemical‑resistant gloves (barrier laminate, nitrile, rubber, neoprene)
  • Chemical‑resistant footwear
  • Protective eyewear

Closed systems, enclosed cabs, or aircraft meeting WPS requirements may reduce PPE.

  • FireHawk is subject to WPS when used on agricultural plants
  • Restricted Entry Interval (REI): 12 hours
  • Early entry requires coveralls, chemical‑resistant gloves, chemical‑resistant footwear, and protective eyewear

Yes, but only with compatible products and never with products that prohibit mixing.

Follow this sequence:

  1. Wettable powders
  2. Flowables
  3. Emulsifiable concentrates
  4. FireHawk
  5. Water‑soluble liquids
  6. Adjuvants

Compatibility must be tested before mixing. Read full label instructions.

No.

Use coarse droplets (solid cone or flat fan at low pressure) to minimise drift. Avoid fine droplets or mist.

  • Fill tank ¾ with water
  • Add FireHawk
  • Add remaining water
  • Maintain agitation throughout
  • See label for more information

Yes. FireHawk Bioherbicide Super Concentrate is registered with the APVMA (Approval No. 95387/145440). The Plus Ready to Use formulation is registered separately (Approval No. 95418/145567). Both products are also recognised as Allowed Inputs for Organic and Regenerative Systems by Southern Cross Certified (Cert. No. 24001).

FireHawk Bioherbicide carries no withholding period when used as directed. Always read and follow the directions for use on the product label.