How Oxyfluorfen TC Controls Weeds with Long-Lasting Efficiency

Introduction
Oxyfluorfen TC (Technical Concentrate) is a pre-emergent and post-emergent herbicide used widely for effective control of broadleaf and grassy weeds. As a diphenyl ether compound, it is known for its strong contact activity and residual control, especially in orchard, vineyard, and vegetable crop settings. Its high efficacy, low usage rate, and long-lasting soil activity make it a go-to solution for sustainable weed management.

Mode of Action

Oxyfluorfen inhibits protoporphyrinogen oxidase (PPO), leading to the accumulation of toxic molecules in plant cells. This causes rapid membrane disruption and cell leakage, ultimately killing the plant. It is active primarily through contact on foliage and through residual action in the soil, where it affects germinating weed seeds.

Key Features

• Dual-use: Effective for both pre-emergence and early post-emergence applications

• Broad-spectrum: Controls annual broadleaf weeds and some grassy weeds

• Long residual control: Offers several weeks of weed suppression

• Low water solubility: Reduces leaching, keeping the product effective in the topsoil

• Fast-acting: Visible symptoms on weeds appear within 1–3 days

Applications

Note: Do not apply to crops with tender green leaves or shallow roots, as it may cause phytotoxicity.

Usage & Dosage

• Field Crops: 0.25–0.75 kg a.i./ha

• Horticulture Crops: 0.2–0.5 kg a.i./ha

• Non-crop Areas: Up to 1 kg a.i./ha depending on weed density

Always follow local regulations and label directions.

Advantages

• Low application rate: Effective even in small quantities

• Cost-effective: Long duration reduces need for repeat spraying

• Flexible use: Suitable for fruit trees, vegetables, and industrial areas

• Rainfastness: Becomes rainfast quickly after application

Limitations

• Contact-only: Doesn’t translocate in weeds, so thorough coverage is essential

• Selective: Can damage non-target crops if misapplied

• Environmental restrictions: Care must be taken near water bodies

Handling & Storage

• Storage: Keep in original containers, tightly sealed in a cool, dry place

• Compatibility: Generally compatible with most herbicides and adjuvants

• PPE: Wear protective clothing, gloves, and eyewear during handling

FAQs

Q: Can I mix Oxyfluorfen TC with glyphosate?
A: Yes, it is often tank-mixed with systemic herbicides to enhance control of established weeds.

Q: How long does it remain active in the soil?
A: Typically 4–8 weeks, depending on soil type and rainfall.

Q: Is it safe for use in organic farming?
A: No, Oxyfluorfen is a synthetic herbicide and not permitted in certified organic systems.

Conclusion

Oxyfluorfen TC is a powerful weed management tool for growers seeking broad-spectrum, long-lasting, and efficient control. Its technical-grade form offers flexibility for further formulation or integration into crop protection programs. When applied correctly, it delivers excellent results while minimizing labor and repeat treatments, supporting higher yields and cleaner fields.