For orchards, vineyards and high-value crops

FireHawk® Bioherbicide Super Concentrate is a non-selective, contact bioherbicide containing 85.26% Nonanoic acid in a patented formulation process technology that works quickly on the foliage it reaches through spray coverage and deposition on target vegetation. 

Active Ingredient: The patented formulation process technology improves penetration, coverage, and leaf wetness duration (LWD). 

Key Benefits

Fast Visible Burndown

Results seen as browning and wilting within hours of application. Nonanoic acid contact action destroys 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

EPA-registered patented bio technology enables the herbicide to penetrate the plant with increased efficacy - every droplet works harder.

Not Translocated

  • REI - 12hrs
  • PHI - 24hrs



  • Contact herbicide technology
  • Flexible application programs
  • Commercial-scale packaging
  • Use across multiple agricultural environments
Where to Use in Orchards & Vineyards
  • In-row and between-row weed control
  • 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.

Why Growers Choose FireHawk Super Concentrate
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Weed Management

Control annual weeds and mixed vegetation populations throughout thegrowing season. 

Vegetative Burndown

Rapidly remove existing vegetation prior to planting, cultivation, or other field operations. 

Cover Crop Termination

Support cover crop management programs with effective contact activity on treated vegetation. 

Harvest Aid Applications

Assist harvest operations through vegetation management and crop dry-down programs. 

Crop Desiccation

Promote crop dry-down where desiccation is desired prior to harvest. 

Land & Facility Management

Support vegetation management programs in and around agricultural operational areas.

Tank-Mix Flexibility

FireHawk Super Concentrate can be incorporated into crop and non-crop weed-management programs where tank mixing is permitted by all applicable labels.

  • Provides a contact herbicide
    option that can be used within integrated weed-management programs. 
  • Can be tank mixed with
    compatible residual herbicides according to label directions. 
  • Designed to complement existing
    herbicide programs with rapid contact burndown activity
Spray Coverage Matters

Use a full cone nozzle to achieve even spray distribution. Apply FireHawk Bioherbicide so the entire plant is thoroughly wet, covering all green leaf surfaces uniformly. Because FireHawk works on contact, only the plant tissue coated with 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—without agitation.

Designed for Professional Applicators

As a contact bioherbicide, FireHawk performance is driven by application quality and spray coverage. 

For optimum performance: 

- Thoroughly cover exposed plant surfaces.

- Ensure adequate penetration into target vegetation.

- Select spray volumes appropriate for canopy density.

- Match application practices to weed size, growth stage, and environmental conditions.

Because contact herbicides only affect treated plant tissue, complete and uniform coverage remains the most important factor influencing performance. 

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 emphasize timing, placement, equipment selection, and respect for the complexity of agricultural ecosystems.

Sized for Commercial Production

FireHawk Bioherbicide Super Concentrate offers various formats to meet your needs.

Super Concentrate - 1.33G

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Super Concentrate - 5G

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275 Gallon Tote

FireHawk for Agriculture

From weed management and vegetative burndown to harvest aid and crop desiccation programs, FireHawk delivers professional-grade contact bioherbicide performance for modern agricultural operations.

Precision Where It Matters.

Fast Visible Burndown. Professional
Agricultural Performance.

The Contact BioSolutions Mission

To deliver nature-inspired, market-leading bioherbicide solutions harnessing technology to meet the growing global demand for regenerative agriculture and sustainable landscapes. We empower farmers, families and communities to reduce their reliance on conventional herbicides and restore the health of ecosystems for future generations.

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 minimize drift. Avoid fine droplets or mist.

  • Avoid drift to desirable vegetation
  • Do not apply when wind favors off‑target movement
  • Keep people, pets, and livestock off treated areas until dry
  • Fill tank ¾ with water
  • Add FireHawk
  • Add remaining water
  • Maintain agitation throughout
  • See label for more information

Clean tank, pump, and lines thoroughly with water after use.

  • Do not apply directly to water
  • Do not contaminate water during disposal
  • Do not apply to wet weeds
  • Do not apply if rain is expected within 2 hours

FireHawk containers are non‑refillable and must be triple‑rinsed or pressure‑rinsed before disposal or recycling.