Oxyfluorfen TC

Pure product is white cry stalline solid, original drug with brownish color. m.p. 84 ～ 85℃ , b.p. 250 ～ 300℃ , flash point 93.35℃ , vapor pressure 0.267×10-3Pa(25℃ ), relative density 1.04 ～ 1.06(25℃ ). Soluble in acetone, ethanol, xylene, dichloroethylene and other organic solvents, solubility in water <0.1mg/L(25℃ ). Unstable when exposed to light.

It is used to control annual broad-leaved weeds and grasses and sedges in rice, soybean, corn, cotton, vegetables, grapes, fruit trees and other crop fields

Oxyfluorfen TC (Technical Concentrate) is a pre-emergent and post-emergent herbicide widely used for controlling broadleaf weeds and grasses in a variety of crops and non-crop areas. As a contact herbicide, it is highly effective in targeting weed foliage while sparing crops due to its selective action. The technical concentrate form serves as the base material for manufacturing various formulations.

Key Features

1. Broad-Spectrum Control: Effective against a wide range of annual grasses and broadleaf weeds.

2. Dual-Action: Works both as a pre-emergent and post-emergent herbicide.

3. Contact Activity: Quickly affects weed foliage upon application.

4. Versatile Use: Suitable for crops, orchards, vineyards, and industrial sites.

Applications

Crops Treated

• Vegetables: Onions, garlic, and brassicas.

• Orchards: Citrus, pome fruits, and stone fruits.

• Vineyards

• Industrial Areas

Weeds Controlled

• Pigweed (Amaranthus spp.)

• Foxtail (Setaria spp.)

• Lamb’s Quarters (Chenopodium album)

• Crabgrass (Digitaria spp.)

• Chickweed (Stellaria media)

Mechanism of Action

Oxyfluorfen inhibits the enzyme protoporphyrinogen oxidase (PPO), which is essential for chlorophyll synthesis. This results in the accumulation of toxic intermediates, causing cellular damage, desiccation, and eventual death of the weeds.

Advantages

1. Fast-Acting: Visible effects on weeds within hours of application.

2. Residual Effect: Provides lasting pre-emergent control, reducing the need for frequent applications.

3. Crop Safety: Highly selective when used according to label instructions.

4. Low Leaching Potential: Remains effective in the upper soil layer, minimizing environmental impact.

Safety and Environmental Considerations

Handling and Storage

• Use personal protective equipment (PPE) such as gloves, goggles, and masks during handling.

• Store in a cool, dry place away from food, feed, and water sources.

Environmental Impact

• Soil Binding: Strongly adsorbs to soil particles, limiting leaching.

• Aquatic Toxicity: Avoid application near water bodies to protect aquatic ecosystems.

• Non-Target Plants: Can harm sensitive plants through drift or runoff.

Regulatory Compliance

• Follow local regulations and label recommendations for safe and effective use.

Limitations

• Contact-Only Action: Ineffective on underground weed parts; regrowth is possible.

• Application Timing: Requires precise timing for optimal pre-emergent control.

• Resistance Risk: Overuse may lead to resistance in weed populations.

Conclusion

Oxyfluorfen TC is a robust herbicide for controlling a broad spectrum of weeds in crops, orchards, and industrial sites. Its dual-action capability, rapid results, and residual activity make it a valuable component of integrated weed management programs. Proper application practices and adherence to safety guidelines are essential for achieving effective and sustainable weed control.